{"title":"RAM, (2019-2024) 6.7L Cummins, Fuel System, Fuel Rail System","description":"\u003cdiv class=\"sds-copy-intro\"\u003e\u003cp\u003eCommon-rail parts for 2019-2024 Ram 2500 and 3500 trucks with the 6.7L Cummins: complete replacement rails, rail pressure sensors, rail plugs, unions and high-pressure fittings. Know this first: if your truck has had a CP4 pump failure, the rail is on the replacement list, because the factory repair replaces lines and rails along with the injectors once pump metal gets inside.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv class=\"sds-copy-guide\"\u003e\n\u003ch2\u003eFuel rail on the 2019-2024 Ram 6.7L Cummins\u003c\/h2\u003e\n\u003cp\u003eThe common rail holds fuel under pressure between the high-pressure pump and the six injectors. On the 2019-2024 \u003ca href=\"\/collections\/cummins\"\u003e6.7L Cummins\u003c\/a\u003e it is limited to 29,000 psi, under both the CP4.2 calibration on 2019-2020 trucks and the CP3 calibration on 2021-2024 trucks. That is up from 26,000 psi on 2007-2018 trucks, and the CP4 itself could make 36,000-39,000 psi but was held back in this application. Rail pressure is controlled by the pump's fuel control actuator, and the rail pressure sensor reports what the system is making. For 2025, Ram moved to a Bosch CP8 and raised the ceiling to 39,000 psi, so do not assume 2019-2024 rail parts cross over.\u003c\/p\u003e\n\u003ch2\u003eWhat fails and why\u003c\/h2\u003e\n\u003cp\u003eThe rail's biggest threat on this platform comes from upstream. A failing CP4.2 on a 2019-2020 truck sheds metal that travels into the rail, injectors, lines and tank. Signs include ticking, loss of power, stalling, a no-start and metal in the fuel filter, at any mileage, though many fail near 100,000 miles. Because the debris lodges in the rail, the factory procedure after a CP4 failure replaces the rail and lines along with the injectors. Some owners of 2019 trucks report misfires and rough running after the Y78 CP3 retrofit, and contamination left in the system is the usual suspect, one more reason not to reuse a rail that has seen pump metal.\u003c\/p\u003e\n\u003ch2\u003eStock replacement vs. upgrade\u003c\/h2\u003e\n\u003cp\u003eFor most owners, a rail job is a repair, not an upgrade. The Exergy complete replacement rail comes with the rail pressure sensor and pressure relief valve already installed, which keeps a contaminated-system repair simple. If only the sensor is suspect, Exergy sells the rail pressure sensor by itself. For 2019-2020 trucks still on the CP4.2, the Exergy System Saver is an improved stock-style inlet metering valve for that pump, but the OEM remedy for a CP4 truck is the Y78 recall, which is free at the dealer. The plugs, unions, T fittings and AN fittings are for owners plumbing the rail or supply side on a modified fuel system.\u003c\/p\u003e\n\u003ch2\u003eWhat we carry\u003c\/h2\u003e\n\u003cp\u003eEvery part in this collection comes from \u003ca href=\"\/collections\/exergy\"\u003eExergy Performance\u003c\/a\u003e: the E05 20950 replacement fuel rail complete with sensor and PRV (2019-2024), the E05 20915 rail pressure sensor (2019-2024), the E05 20905 CP4.2 System Saver improved stock inlet metering valve (2019-2020), the 1-018-133 M18x1.5 rail plug, the 1-018-132 M18x1.5 rail end to M14x1.5 adapter, the 1-018-129 M14x1.5 union, the 1-008-003 M14x1.5 three-way T fitting, the 1-018-043 M14x1.5 plug and nut rail cap, and the 1-018-148 and 1-018-149 CP3 supply fittings in -6AN and -8AN.\u003c\/p\u003e\n\u003ch2\u003eFitment notes\u003c\/h2\u003e\n\u003cp\u003eRead the year range in each title. The complete rail and the rail pressure sensor are listed for 2019-2024. The System Saver valve is for 2019-2020 trucks that still have the CP4.2; a truck that received the Y78 recall now runs a CP3, and parts must match the pump on the truck. The CP3 supply fittings belong on CP3 trucks: every 2021-2024 truck and recall-converted 2019-2020 trucks. Match thread sizes exactly; the titles call out M18x1.5 and M14x1.5 threads. 2025 trucks use the CP8 system and are a separate fitment. Verify by VIN.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eWhat controls rail pressure on a 2019-2024 6.7L Cummins?\u003c\/h3\u003e\n\u003cp\u003eThe high-pressure pump's fuel control actuator sets rail pressure, and the system is limited to 29,000 psi on both the CP4.2 and CP3 calibrations. The rail pressure sensor reports back what the system is making. Exergy sells that sensor separately and as part of its complete replacement rail.\u003c\/p\u003e\n\u003ch3\u003eDo I need a new rail after a CP4 failure?\u003c\/h3\u003e\n\u003cp\u003eUnder the factory procedure, yes. Metal from a failed CP4.2 lodges in the rail and lines, so both are replaced along with the injectors. Contamination left behind is the usual suspect when owners report misfires after the CP3 retrofit.\u003c\/p\u003e\n\u003ch3\u003eShould I install the CP4.2 System Saver valve or get the recall done?\u003c\/h3\u003e\n\u003cp\u003eIf your 2019-2020 truck still has the CP4.2 and no record of Y78, the recall is the OEM remedy and it is free at the dealer. It replaces the CP4 with a CP3, reflashes the PCM and inspects the fuel system. Call us if you want to talk through where the Exergy valve fits your situation.\u003c\/p\u003e\n\u003ch3\u003eWill these rail parts fit a 2025 Ram?\u003c\/h3\u003e\n\u003cp\u003eDo not assume so. The 2025 trucks moved to a Bosch CP8 pump and a 39,000 psi ceiling, a different system from the 29,000 psi 2019-2024 setup. The rail and sensor here are listed for 2019-2024; match the year range in the title.\u003c\/p\u003e\n\u003cp class=\"sds-copy-cta\"\u003eNot sure what fits? Call the shop at the number in the header, or use the fitment checker on any product page. We install everything we sell.\u003c\/p\u003e\n\u003c\/div\u003e","products":[{"product_id":"2019-6-7-cummins-exergy-rail-pressure-sensor-e05-20915","title":"Exergy Performance E05 20915 Rail Pressure Sensor (2019-2024 6.7L Cummins)","description":"\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eAre you seeing intermittent rail pressure fluctuations that are causing running issues? The rail pressure sensor may be the root cause.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e The fuel pressure sensor is a crucial part of the high pressure fuel system. It effectively measures fuel pressure allowing for proper pressure control from the ECU. A faulty or failing sensor can cause serious running issues and potential system failure due to over pressure. If the connector is broken or cracked, water could be introduced to the terminals also causing incorrect information to be relayed back to the ECU. \u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eNote:  A professional diagnosis is recommended to ensure the rail pressure sensor is the cause of your issues. If mis-diagnosed and the rail pressure sensor does not fix your issue it cannot be returned once it has been installed.\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e***Torque Rail Pressure Sensor to 52ft-lbs***\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Exergy Performance","offers":[{"title":"Default Title","offer_id":50653178724640,"sku":"E05 20915","price":189.99,"currency_code":"USD","in_stock":true}]},{"product_id":"2019-2020-6-7-cummins-exergy-replacement-fuel-rail-complete-w-sensor-prv-e05-20950","title":"Exergy Performance E05 20950 Replacement Fuel Rail Complete w\/Sensor \u0026 PRV (2019-2024 6.7L Cummins)","description":"\u003cp\u003eExergy Replacement Fuel Rail (Complete w\/Sensor \u0026amp; PRV)\u003c\/p\u003e","brand":"Exergy Performance","offers":[{"title":"Default Title","offer_id":50653178986784,"sku":"E05 20950","price":309.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/exergy-performance-e05-20950-replacement-fuel-rail-complete-wsensor-prv-2019-2024-cummins-6071071.png?v=1779545829"},{"product_id":"2019-21-6-7-cummins-cp4-2-exergy-system-saver-improved-stock-inlet-metering-valve-e05-20905","title":"Exergy Performance E05 20905 CP4.2 System Saver Improved Stock Inlet Metering Valve (2019-2020 6.7L Cummins)","description":"\u003cp\u003eExergy System Saver Improved Stock Inlet Metering Valve (FCA\/MPROP)\u003c\/p\u003e","brand":"Exergy Performance","offers":[{"title":"Default Title","offer_id":50653179380000,"sku":"E05 20905","price":159.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/exergy-performance-e05-20905-cp42-system-saver-improved-stock-inlet-metering-valve-2019-2024-cummins-2404581.png?v=1779545829"},{"product_id":"m12x1-5-to-6an-high-flow-cp3-supply-fitting-1-018-148","title":"Exergy Performance 1-018-148 M12X1.5 to -6AN High Flow CP3 Supply Fitting","description":"\u003cdiv class=\"sds-pd-intro\"\u003e\u003cp\u003eThe Exergy Performance 1-018-148 is a high flow CP3 supply fitting with an M12x1.5 thread on one end and a -6AN connection on the other. It lets you run a -6AN fuel supply line straight into a CP3 supply port with an M12x1.5 thread. You buy it when you want one fitting made for that connection instead of a stack of adapters.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv class=\"sds-pd-body\"\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eExergy does not publish a vehicle list for this fitting, and we do not have it tagged to a specific engine or model year. Fit comes down to the threads. The pump end is M12x1.5 and the line end is -6AN. Check the thread on your CP3 supply port and the size of the line you plan to run before you order. If you are not sure what your pump has, call the shop with your VIN and we will check it.\u003c\/p\u003e\n\u003ch2\u003eWhy this part\u003c\/h2\u003e\n\u003cp\u003eThe supply connection at the CP3 has one job: get fuel into the pump without leaks or air. Exergy builds this as a high flow supply fitting that goes straight from the pump's M12x1.5 port to a -6AN line in one piece. Every extra adapter in a fuel line is one more joint that can seep or pull air, so a single fitting made for the connection is the cleaner way to plumb it. Exergy does not publish a flow rating for it, so we do not quote one. If your supply side is plumbed in -8AN, Exergy makes the same fitting with an -8AN end as part number 1-018-149.\u003c\/p\u003e\n\u003ch2\u003eWhat you get\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003eOne Exergy Performance M12x1.5 to -6AN High Flow CP3 Supply Fitting, part number 1-018-148\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePart number: 1-018-148\u003c\/li\u003e\n\u003cli\u003ePump-side thread: M12x1.5\u003c\/li\u003e\n\u003cli\u003eLine-side connection: -6AN\u003c\/li\u003e\n\u003cli\u003eBrand: Exergy Performance\u003c\/li\u003e\n\u003cli\u003eCondition: New\u003c\/li\u003e\n\u003cli\u003eShipping weight (Exergy listing): 1.0 lbs\u003c\/li\u003e\n\u003cli\u003ePackage dimensions (Exergy listing): 2.0 in W x 2.0 in H x 4.0 in L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAbout Exergy Performance\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/exergy\"\u003eExergy Performance\u003c\/a\u003e builds high-pressure common-rail fuel parts for Cummins, Duramax and Power Stroke diesels, from injectors and CP3 and CP4.2 pumps to fuel rails, rail pressure sensors and relief valves. The line also covers the smaller pieces that hold a fuel system together, like CP3 supply fittings, plug kits and seal kits. When a truck has a rail-pressure problem or needs more fuel, Exergy is the brand we reach for on the high-pressure side.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eShould I order the -6AN or the -8AN version?\u003c\/h3\u003e\n\u003cp\u003eMatch the fitting to the line you are running. This one, 1-018-148, has a -6AN end. If your supply line is -8AN, order 1-018-149. Both thread into the pump with the same M12x1.5 thread.\u003c\/p\u003e\n\u003ch3\u003eWhich trucks does it fit?\u003c\/h3\u003e\n\u003cp\u003eExergy does not list vehicles for this fitting. It fits a CP3 supply port with an M12x1.5 thread fed by a -6AN line. Check your pump before you order, or call us and we will confirm it against your truck.\u003c\/p\u003e\n\u003ch3\u003eDoes it come with a fuel line?\u003c\/h3\u003e\n\u003cp\u003eNo. Exergy lists the fitting by itself. You supply the -6AN line and hose end that connect to it.\u003c\/p\u003e\n\u003cp class=\"sds-pd-cta\"\u003eQuestions on fitment? Call the shop at the number in the header. We install everything we sell.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Exergy Performance","offers":[{"title":"Default Title","offer_id":50653180330272,"sku":"1-018-148","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/exergy-performance-1-018-148-m12x15-to-6an-high-flow-cp3-supply-fitting-9356354.png?v=1779545771"},{"product_id":"m12x1-5-to-8anhigh-flow-cp3-supply-fitting-1-018-149","title":"Exergy Performance 1-018-149 M12X1.5 to -8AN HIGH Flow CP3 Supply Fitting","description":"\u003cdiv class=\"sds-pd-intro\"\u003e\u003cp\u003eExergy Performance part number 1-018-149 is the -8AN version of Exergy's high flow CP3 supply fitting. One end threads into a CP3 supply port with an M12x1.5 thread, and the other end takes a -8AN line. It is the fitting to use when the fuel supply to your CP3 is plumbed in -8AN and you want a single-piece connection at the pump.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv class=\"sds-pd-body\"\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eThere is no vehicle application list for 1-018-149 on Exergy's site, and our listing is not tied to a particular engine. Two things decide whether it fits your setup: an M12x1.5 thread at the CP3 supply port, and a -8AN line feeding it. If both match, the fitting fits. If you do not know what thread your pump uses, call us with your VIN before you order and we will look it up.\u003c\/p\u003e\n\u003ch2\u003eWhy this part\u003c\/h2\u003e\n\u003cp\u003eThe -8AN end takes a larger line than the -6AN version of this fitting, part number 1-018-148. That makes 1-018-149 the one to use when the rest of your supply side is built around -8AN plumbing. Carrying the line size all the way to the pump means you are not stepping it down with extra adapters right at the inlet, and fewer joints at the pump means fewer places for a leak to start.\u003c\/p\u003e\n\u003ch2\u003eWhat you get\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003eOne Exergy Performance M12x1.5 to -8AN High Flow CP3 Supply Fitting, part number 1-018-149\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePart number: 1-018-149\u003c\/li\u003e\n\u003cli\u003ePump-side thread: M12x1.5\u003c\/li\u003e\n\u003cli\u003eLine-side connection: -8AN\u003c\/li\u003e\n\u003cli\u003eBrand: Exergy Performance\u003c\/li\u003e\n\u003cli\u003eCondition: New\u003c\/li\u003e\n\u003cli\u003eShipping weight (Exergy listing): 1.0 lbs\u003c\/li\u003e\n\u003cli\u003ePackage dimensions (Exergy listing): 2.0 in W x 2.0 in H x 4.0 in L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAbout Exergy Performance\u003c\/h2\u003e\n\u003cp\u003eExergy Performance focuses on the high-pressure side of common-rail Cummins, Duramax and Power Stroke engines. Its catalog runs from performance injector sets and CP3 and CP4.2 pumps to fuel rails, rail pressure sensors and pressure relief valves, plus the supply fittings and seal kits that go with them. Shop the full \u003ca href=\"\/collections\/exergy\"\u003eExergy Performance\u003c\/a\u003e line.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is the difference between 1-018-149 and 1-018-148?\u003c\/h3\u003e\n\u003cp\u003eOnly the line end. 1-018-149 has a -8AN end and 1-018-148 has a -6AN end. Both thread into the CP3 supply port with an M12x1.5 thread.\u003c\/p\u003e\n\u003ch3\u003eHow much flow does it support?\u003c\/h3\u003e\n\u003cp\u003eExergy calls it a high flow fitting but does not publish a flow rating for it, and we will not guess at one. If you are sizing a fuel supply for a specific power goal, call us and we will talk through the whole supply side with you, not just the fitting.\u003c\/p\u003e\n\u003ch3\u003eCan you install it for me?\u003c\/h3\u003e\n\u003cp\u003eYes. We are a working diesel repair shop in Wildwood, FL, and we install what we sell. Call the shop to set up a time.\u003c\/p\u003e\n\u003cp class=\"sds-pd-cta\"\u003eQuestions on fitment? Call the shop at the number in the header. We install everything we sell.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Exergy Performance","offers":[{"title":"Default Title","offer_id":50653180363040,"sku":"1-018-149","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/exergy-performance-1-018-149-m12x15-to-8an-high-flow-cp3-supply-fitting-4764350.png?v=1779545770"},{"product_id":"m14x1-5-plug-and-nut-rail-cap-1-018-043","title":"Exergy Performance 1-018-043 M14X1.5 Plug and Nut (Rail Cap)","description":"\u003cdiv class=\"sds-pd-intro\"\u003e\u003cp\u003eThe Exergy Performance 1-018-043 is an M14x1.5 plug and nut sold as a rail cap. It closes off an M14x1.5 port on a common-rail fuel system when nothing is connected to that port. Exergy does not publish a vehicle list for it, so you match it to your truck by thread size, not by year or model.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv class=\"sds-pd-body\"\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eExergy lists this cap under its general fittings and does not tie it to a specific engine, truck or model year. Fitment comes down to the port you are capping. It has to be an M14x1.5 thread, which means a 14 mm thread with a 1.5 mm pitch. Check the port, or the line nut you are taking off it, before you order. If you are not sure what your rail uses, call us with your VIN, tell us which port you are working on, and we will help you confirm it.\u003c\/p\u003e\n\u003ch2\u003eWhy this part\u003c\/h2\u003e\n\u003cp\u003eWhen a high-pressure line comes off a rail and is not going back on, the open port still has to be closed. This is the fitting for that: a plug and nut from a company that builds high-pressure common-rail parts, sold by Exergy specifically as a rail cap. A typical reason to need one is a fuel system that has been plumbed differently from stock and leaves an M14x1.5 port with nothing on it.\u003c\/p\u003e\n\u003ch2\u003eWhat you get\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eM14x1.5 plug and nut (rail cap), Exergy part number 1-018-043\u003c\/li\u003e\n\u003cli\u003eNew part from Exergy Performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eExergy's listing does not mention seals or other hardware with this part.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePart number \/ SKU: 1-018-043\u003c\/li\u003e\n\u003cli\u003eThread: M14x1.5\u003c\/li\u003e\n\u003cli\u003eType: plug and nut (rail cap)\u003c\/li\u003e\n\u003cli\u003eCondition: New\u003c\/li\u003e\n\u003cli\u003eShipping weight (Exergy listing): 1.0 lb\u003c\/li\u003e\n\u003cli\u003ePackage dimensions (Exergy listing): 2.0 in W x 1.0 in H x 4.0 in L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAbout Exergy Performance\u003c\/h2\u003e\n\u003cp\u003eExergy Performance makes parts for the high-pressure side of common-rail Cummins, Duramax and Powerstroke diesels: injectors, CP3 and CP4.2 pumps, fuel rails, rail pressure sensors, pressure relief valves, and the fittings and seal kits that tie them together. When we are tracking down a rail-pressure problem or adding fuel to a truck, Exergy is our first call for high-pressure parts. See the rest of the line at \u003ca href=\"\/collections\/exergy\"\u003eExergy Performance\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eWill this rail cap fit my truck?\u003c\/h3\u003e\n\u003cp\u003eExergy does not publish a vehicle list for it. It fits an M14x1.5 port, so confirm the thread on the port you are closing off. Send us your VIN, tell us which port it is, and we will help you check.\u003c\/p\u003e\n\u003ch3\u003eHow is this different from the M18x1.5 rail plug?\u003c\/h3\u003e\n\u003cp\u003eThread size. This cap is for an M14x1.5 port. Exergy's M18x1.5 rail plug is for the larger M18x1.5 port. Order the one that matches the port on your rail.\u003c\/p\u003e\n\u003ch3\u003eIs there a torque spec for it?\u003c\/h3\u003e\n\u003cp\u003eExergy's listing does not give one. Call the shop before you install it and we will go over it with you.\u003c\/p\u003e\n\u003cp class=\"sds-pd-cta\"\u003eQuestions on fitment? Call the shop at the number in the header. We install everything we sell.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Exergy Performance","offers":[{"title":"Default Title","offer_id":50653180395808,"sku":"1-018-043","price":45.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/exergy-performance-1-018-043-m14x15-plug-and-nut-rail-cap-5342677.png?v=1779545770"},{"product_id":"m14x1-5-three-way-t-fitting-1-008-003","title":"Exergy Performance 1-008-003 M14X1.5 Three Way T Fitting","description":"\u003cdiv class=\"sds-pd-intro\"\u003e\u003cp\u003eThe Exergy Performance 1-008-003 is a three-way T fitting sized M14x1.5, one of the fuel-system fittings in Exergy's high-pressure line. It is a plumbing part rather than a bolt-on for one truck: a tee joins three lines at one point. You buy it when you are building or changing fuel plumbing and need a tee that matches an M14x1.5 system.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv class=\"sds-pd-body\"\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eThis fitting has no single-truck fitment, and our listing carries no engine tag for it. Exergy's own catalog files it under a wide range of Duramax, Cummins and Power Stroke applications, which tells you it is a general fitting rather than a part for one truck.\u003c\/p\u003e\n\u003cp\u003eWhat decides whether it works for you is the thread. This tee is M14x1.5, so it has to match the M14x1.5 lines and fittings in your plumbing. If you are not sure what thread your system uses, call us before you order and we will help you sort it out.\u003c\/p\u003e\n\u003ch2\u003eWhy this part\u003c\/h2\u003e\n\u003cp\u003eA tee splits one flow path into two, or brings two into one. In fuel plumbing, that is how you tie an added line into an existing one or feed two points from a single source. If the tee goes on the high-pressure side, it has to hold rail pressure and match its thread exactly, and that is the side of the system Exergy builds for.\u003c\/p\u003e\n\u003cp\u003eExergy's line also includes fuel rails, rail plug kits, CP3 supply fittings and seal kits, so you can source the high-pressure side of a fuel job from one maker.\u003c\/p\u003e\n\u003ch2\u003eWhat you get\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003eOne Exergy Performance 1-008-003 M14x1.5 three-way T fitting, new\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eExergy's page does not list lines, nuts or seals with the tee, so plan the rest of the plumbing separately.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePart number: 1-008-003\u003c\/li\u003e\n\u003cli\u003eThread: M14x1.5\u003c\/li\u003e\n\u003cli\u003eConfiguration: three-way T\u003c\/li\u003e\n\u003cli\u003eCondition: New\u003c\/li\u003e\n\u003cli\u003eShipping weight: 1.0 lbs\u003c\/li\u003e\n\u003cli\u003ePackage dimensions: 2.0 in W x 2.0 in H x 4.0 in L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAbout Exergy Performance\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/exergy\"\u003eExergy Performance\u003c\/a\u003e builds high-pressure common-rail fuel-system parts for Cummins, Duramax and Power Stroke engines. Beyond injector sets and CP3 and CP4.2 pumps, the line includes fuel rails, rail pressure sensors, pressure relief valves, CP3 supply fittings, rail plug kits and seal kits. For rail-pressure problems and fuel builds, Exergy is our first call on the high-pressure side.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eWhich trucks does this tee fit?\u003c\/h3\u003e\n\u003cp\u003eIt is not tied to one truck. Exergy lists it across Duramax, Cummins and Power Stroke applications. What matters is that your lines and fittings are M14x1.5.\u003c\/p\u003e\n\u003ch3\u003eDoes it come with lines or seals?\u003c\/h3\u003e\n\u003cp\u003eExergy's page lists the tee itself. Lines, nuts and seals are not listed with it.\u003c\/p\u003e\n\u003ch3\u003eCan you help me plan the plumbing?\u003c\/h3\u003e\n\u003cp\u003eYes. We are a working diesel shop and we install what we sell. Call with your truck and what you are trying to plumb, and we will help you pick the parts.\u003c\/p\u003e\n\u003cp class=\"sds-pd-cta\"\u003eQuestions on fitment? Call the shop at the number in the header. We install everything we sell.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Exergy Performance","offers":[{"title":"Default Title","offer_id":50653180428576,"sku":"1-008-003","price":239.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/exergy-performance-1-008-003-m14x15-three-way-t-fitting-4920343.png?v=1779545770"},{"product_id":"m14x1-5-union-1-018-129","title":"Exergy Performance 1-018-129 M14X1.5 Union","description":"\u003cdiv class=\"sds-pd-intro\"\u003e\u003cp\u003eThe Exergy Performance 1-018-129 is an M14x1.5 union, the fitting that joins two M14x1.5 connections. Exergy files it under its Cummins, Duramax and Powerstroke fittings, with a vehicle list that covers GM, Ram and Ford heavy-duty trucks and vans. You buy it when two M14x1.5 connections in a fuel system need to be joined with a proper fitting.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv class=\"sds-pd-body\"\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eExergy's vehicle list for this union is broad. It includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eChevrolet Silverado and GMC Sierra 2500HD, 3500 and 3500HD pickups, including 2007 Classic models, and Chevrolet Express and GMC Savana 2500 and 3500 vans, all with the 6.6L Duramax\u003c\/li\u003e\n\u003cli\u003eRam 2500 and 3500 with the 5.9L or 6.7L Cummins, and Ram 4000 with the 6.7L Cummins\u003c\/li\u003e\n\u003cli\u003eFord F-250 and F-350 Super Duty with 6.0L, 6.4L, 6.7L or 7.3L engines, Ford Excursion with 6.0L or 7.3L engines, and Ford E-350 vans with 6.0L or 7.3L engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBecause it is a thread-size fitting, the threads matter more than the truck. Confirm both connections you are joining are M14x1.5, a 14 mm thread with a 1.5 mm pitch. Verify by VIN or call us if you are not sure.\u003c\/p\u003e\n\u003ch2\u003eWhy this part\u003c\/h2\u003e\n\u003cp\u003eA union is the part you want when two M14x1.5 connections need to meet, whether you are re-routing a line, joining two sections or building a custom setup. Exergy makes this fitting as part of the same high-pressure line it builds rails, pumps and relief valves for, so the joint in your fuel system comes from a common-rail parts maker rather than a general hardware bin.\u003c\/p\u003e\n\u003ch2\u003eWhat you get\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003eM14x1.5 union, Exergy part number 1-018-129\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eExergy's listing does not mention lines, nuts or seals with the union.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePart number \/ SKU: 1-018-129\u003c\/li\u003e\n\u003cli\u003eThread: M14x1.5\u003c\/li\u003e\n\u003cli\u003eType: union\u003c\/li\u003e\n\u003cli\u003eCondition: New\u003c\/li\u003e\n\u003cli\u003eShipping weight (Exergy listing): 1.0 lb\u003c\/li\u003e\n\u003cli\u003ePackage dimensions (Exergy listing): 2.0 in W x 1.0 in H x 4.0 in L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAbout Exergy Performance\u003c\/h2\u003e\n\u003cp\u003eExergy Performance is a high-pressure fuel specialist for Cummins, Duramax and Powerstroke common-rail diesels. Alongside injectors, CP3 and CP4.2 pumps and fuel rails, it makes the small parts that hold a system together: rail plug kits, CP3 supply fittings, seal kits and fittings like this union. More at \u003ca href=\"\/collections\/exergy\"\u003eExergy Performance\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eWhich trucks is this union listed for?\u003c\/h3\u003e\n\u003cp\u003eExergy lists it for 6.6L Duramax GM pickups and vans, 5.9L and 6.7L Cummins Rams, and Ford Super Duty, Excursion and E-350 models. Since it fits by thread, confirm both connections are M14x1.5 first.\u003c\/p\u003e\n\u003ch3\u003eWhat if one side of my joint is M18x1.5?\u003c\/h3\u003e\n\u003cp\u003eThen this union is not the part. Exergy's M18x1.5 rail end to M14x1.5 adapts an M18x1.5 rail connection to M14x1.5. Call us and we will help you sort out which piece your setup needs.\u003c\/p\u003e\n\u003ch3\u003eDoes it come with lines?\u003c\/h3\u003e\n\u003cp\u003eExergy's listing names the union only and mentions no lines, so plan on supplying your own.\u003c\/p\u003e\n\u003cp class=\"sds-pd-cta\"\u003eQuestions on fitment? Call the shop at the number in the header. We install everything we sell.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Exergy Performance","offers":[{"title":"Default Title","offer_id":50653180461344,"sku":"1-018-129","price":63.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/exergy-performance-1-018-129-m14x15-union-9143728.png?v=1779545770"},{"product_id":"m18x1-5-rail-end-to-m14x1-5-1-018-132","title":"Exergy Performance 1-018-132 M18X1.5 Rail End to M14X1.5","description":"\u003cdiv class=\"sds-pd-intro\"\u003e\u003cp\u003eThe Exergy Performance 1-018-132 is a rail end that goes from M18x1.5 to M14x1.5. It adapts an M18x1.5 rail connection so it can take M14x1.5 hardware. Exergy does not publish a vehicle list for it, so you match it by the threads on your rail and on whatever you are connecting to it.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv class=\"sds-pd-body\"\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eExergy lists this part under its general fittings with no engine or model-year list. Match it by thread. The rail side is M18x1.5, an 18 mm thread with a 1.5 mm pitch, and the other side is M14x1.5, a 14 mm thread with the same 1.5 mm pitch. Exergy also makes a separate rail end to M14x1.5 built for the LB7 Duramax, so LB7 owners should call us before ordering this one. For anything else, send us your VIN and tell us which rail port you are working on.\u003c\/p\u003e\n\u003ch2\u003eWhy this part\u003c\/h2\u003e\n\u003cp\u003eRail ports and the lines or fittings you want to run do not always share a thread. When the rail side is M18x1.5 and the hardware you are connecting is M14x1.5, this rail end is the step between the two. It comes from Exergy, which builds the rails, pumps and relief valves on the high-pressure side of common-rail diesels, so the adapter on your rail is made by the same people who make rails.\u003c\/p\u003e\n\u003ch2\u003eWhat you get\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003eM18x1.5 rail end to M14x1.5, Exergy part number 1-018-132\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eExergy's listing does not mention seals or other hardware with it.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePart number \/ SKU: 1-018-132\u003c\/li\u003e\n\u003cli\u003eThreads: M18x1.5 rail end to M14x1.5\u003c\/li\u003e\n\u003cli\u003eCondition: New\u003c\/li\u003e\n\u003cli\u003eShipping weight (Exergy listing): 1.0 lb\u003c\/li\u003e\n\u003cli\u003ePackage dimensions (Exergy listing): 2.0 in W x 1.0 in H x 4.0 in L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAbout Exergy Performance\u003c\/h2\u003e\n\u003cp\u003eExergy Performance builds the high-pressure side of common-rail diesels for Cummins, Duramax and Powerstroke owners. The range runs from performance injector sets and CP3 pumps to fuel rails, rail pressure sensors and relief valves, plus the plug kits, fittings and seal kits around them. Shop it all at \u003ca href=\"\/collections\/exergy\"\u003eExergy Performance\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eWill this fit my LB7 Duramax?\u003c\/h3\u003e\n\u003cp\u003eExergy makes a separate rail end to M14x1.5 specifically for the LB7. Call us with your VIN before you order so we can make sure you get the right one.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between this and the M18x1.5 rail plug?\u003c\/h3\u003e\n\u003cp\u003eThe rail plug closes an M18x1.5 port. This rail end converts it to M14x1.5 so something can connect there. Pick the plug if the port is being shut off and the rail end if something is being plumbed in.\u003c\/p\u003e\n\u003ch3\u003eCan you install it?\u003c\/h3\u003e\n\u003cp\u003eYes. We install everything we sell. If you are re-plumbing a rail, call the shop and we will go over the whole setup with you.\u003c\/p\u003e\n\u003cp class=\"sds-pd-cta\"\u003eQuestions on fitment? Call the shop at the number in the header. We install everything we sell.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Exergy Performance","offers":[{"title":"Default Title","offer_id":50653180526880,"sku":"1-018-132","price":63.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/exergy-performance-1-018-132-m18x15-rail-end-to-m14x15-1676419.png?v=1779545770"},{"product_id":"m18x1-5-rail-plug-1-018-133","title":"Exergy Performance 1-018-133 M18X1.5 Rail Plug","description":"\u003cdiv class=\"sds-pd-intro\"\u003e\u003cp\u003eThe Exergy Performance 1-018-133 is an M18x1.5 rail plug. It closes off an M18x1.5 port on a common-rail fuel rail. Exergy does not publish a vehicle list for it, so you match it to your rail by thread size, not by truck or year. If the port is M18x1.5 and it is coming out of service, this is the plug.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv class=\"sds-pd-body\"\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eThis plug is listed in Exergy's general fittings with no engine or model-year list. The port it goes in has to be M18x1.5, an 18 mm thread with a 1.5 mm pitch. Exergy also sells engine-specific rail plugs, including a fuel rail plug kit listed for the LBZ and LMM Duramax and a flush-mount M18x1.5 plug listed for the 2011-2016 6.6L Duramax. If your truck is one of those, call us before ordering so you end up with the right plug. Otherwise, check the port thread or send us your VIN.\u003c\/p\u003e\n\u003ch2\u003eWhy this part\u003c\/h2\u003e\n\u003cp\u003eIf a port on your rail is coming out of service, it needs a plug that matches its thread. This is Exergy's plug for an M18x1.5 port, the larger-thread counterpart to its M14x1.5 rail cap. Exergy builds rails, pumps, rail pressure sensors and relief valves for Cummins, Duramax and Powerstroke diesels, and this plug comes out of that same high-pressure line.\u003c\/p\u003e\n\u003ch2\u003eWhat you get\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003eM18x1.5 rail plug, Exergy part number 1-018-133\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eExergy's listing does not mention a seal or O-ring with this plug.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePart number \/ SKU: 1-018-133\u003c\/li\u003e\n\u003cli\u003eThread: M18x1.5\u003c\/li\u003e\n\u003cli\u003eType: rail plug\u003c\/li\u003e\n\u003cli\u003eCondition: New\u003c\/li\u003e\n\u003cli\u003eShipping weight (Exergy listing): 1.0 lb\u003c\/li\u003e\n\u003cli\u003ePackage dimensions (Exergy listing): 2.0 in W x 1.0 in H x 4.0 in L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAbout Exergy Performance\u003c\/h2\u003e\n\u003cp\u003eExergy Performance focuses on high-pressure common-rail fuel parts for Cummins, Duramax and Powerstroke trucks. Its catalog covers injectors, CP3 and CP4.2 pumps, new fuel rails, rail pressure sensors and pressure relief valves, plus the rail plug kits and seal kits that finish a job. When a truck in our shop has a rail-pressure problem, Exergy is one of the first places we look. Browse \u003ca href=\"\/collections\/exergy\"\u003eExergy Performance\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eDoes this plug fit my truck?\u003c\/h3\u003e\n\u003cp\u003eIt fits an M18x1.5 port. Exergy does not list specific trucks for it, so check the thread on the port you are closing, or call us with your VIN.\u003c\/p\u003e\n\u003ch3\u003eIs this the same as Exergy's flush-mount rail plug?\u003c\/h3\u003e\n\u003cp\u003eNo. The flush-mount M18x1.5 plug is a separate Exergy part listed for the 2011-2016 6.6L Duramax, and it needs a triple-square bit. This is the general M18x1.5 rail plug.\u003c\/p\u003e\n\u003ch3\u003eShould I use this or the M14x1.5 rail cap?\u003c\/h3\u003e\n\u003cp\u003eGo by the port. An M18x1.5 port takes this plug, and an M14x1.5 port takes the rail cap. If you are not sure which you have, we can help you check.\u003c\/p\u003e\n\u003cp class=\"sds-pd-cta\"\u003eQuestions on fitment? Call the shop at the number in the header. We install everything we sell.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Exergy Performance","offers":[{"title":"Default Title","offer_id":50653180559648,"sku":"1-018-133","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/exergy-performance-1-018-133-m18x15-rail-plug-6334768.png?v=1779545770"}],"url":"https:\/\/www.southerndieselsupply.com\/collections\/ram-2019-2024-6-7l-cummins-fuel-system-fuel-rail-system.oembed","provider":"Southern Diesel Supply","version":"1.0","type":"link"}