{"title":"RAM, (2019-2024) 6.7L Cummins, Cooling System, Coolant Tanks","description":"\u003cdiv class=\"sds-copy-intro\"\u003e\u003cp\u003eCoolant tanks and caps for the 2019-2024 Ram 2500 and 3500 with the 6.7L Cummins. On this truck the tank is a pressurized degas bottle, and it doubles as your early warning: an internal EGR cooler leak shows up here first as a coolant level that keeps dropping with no drips under the truck.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv class=\"sds-copy-guide\"\u003e\n\u003ch2\u003eThe degas bottle on the 2019-2024 Ram 6.7L Cummins\u003c\/h2\u003e\n\u003cp\u003eThe \u003ca href=\"\/collections\/cummins\"\u003e6.7L Cummins\u003c\/a\u003e in these trucks uses a pressurized degas bottle as the fill point and level check for a 23.8-quart cooling system. Because the bottle is under pressure, check the level with the engine cold and open the cap only when the system is cold. The 2019 redesign increased cooling capacity across the system, and the tanks in this collection are built for 2019 and newer trucks. Ram's factory fill is a 10-year\/150,000-mile OAT coolant, so anything you add at the bottle should be compatible with it.\u003c\/p\u003e\n\u003ch2\u003eWhat the bottle tells you\u003c\/h2\u003e\n\u003cp\u003eTwo engine problems show up at the degas bottle before anywhere else. A level that drops with nothing on the ground points toward an internal EGR cooler leak. Look for white, sweet-smelling steam at the tailpipe on a cold start, a P2457 code, and exhaust gas aerating the coolant in the bottle. Owners of 2020 and 2021 trucks have reported cracked EGR coolers burning coolant. Coolant pushing into the bottle with overheating under load is the head-gasket pattern. Diesel Hub lists head gaskets as more common on the 6.7L than the 5.9L, but the 2019 engine's larger head bolts were meant to address that, so it is a lower-probability item on these trucks. If the level is dropping, find the leak before you replace the tank, because a new bottle will not stop coolant going into the exhaust.\u003c\/p\u003e\n\u003ch2\u003eFactory-style or aluminum\u003c\/h2\u003e\n\u003cp\u003eThe \u003ca href=\"\/collections\/wcfab\"\u003eWCFab\u003c\/a\u003e OEM-placement coolant tank kit is built to mount where the factory bottle sits, as the name says. The \u003ca href=\"\/collections\/mishimoto\"\u003eMishimoto\u003c\/a\u003e degas bottle is aluminum and is listed for 2019-2025 6.7L Cummins trucks. For the cap alone, WCFab makes a billet aluminum coolant tank cap that fits a wide range of Cummins and Duramax trucks. Pick the tank by how you want it built; pick the cap if the tank itself is fine.\u003c\/p\u003e\n\u003ch2\u003eWhat we carry\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWCFab WCF100284 OEM placement coolant tank kit, listed for 2019-2024 6.7L Cummins.\u003c\/li\u003e\n\u003cli\u003eMishimoto MMRT-RAM-19 aluminum degas bottle, listed for 2019-2025 6.7L Cummins.\u003c\/li\u003e\n\u003cli\u003eWCFab WCF100472 billet aluminum coolant tank cap, listed for 2004.5-2024 Cummins and 2001-2024 6.6L Duramax.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment notes\u003c\/h2\u003e\n\u003cp\u003eUse the year range in each product title. Several cooling parts changed for 2019, including the radiator hoses, water pump and thermostat housing, so buy tank parts by the listed years rather than assuming an older Ram part carries over. The tanks here are listed for 2019 and newer trucks, and the billet cap covers a much wider range. After a tank swap, refill with coolant that matches the factory OAT spec and do not mix it with HOAT. If anything is unclear, verify by VIN or call us.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eWhere do I check coolant on a 2019-2024 Ram 6.7L Cummins?\u003c\/h3\u003e\n\u003cp\u003eAt the pressurized degas bottle. Check it with the engine cold and only open the cap when the system is cold. Ram's factory fill is a 10-year\/150,000-mile OAT coolant, so top off with something compatible.\u003c\/p\u003e\n\u003ch3\u003eMy degas bottle keeps dropping but nothing is leaking. What is going on?\u003c\/h3\u003e\n\u003cp\u003eOn this engine, that pattern points toward an internal EGR cooler leak. Look for white, sweet-smelling steam at the tailpipe on a cold start, a P2457 code, or exhaust gas bubbling in the bottle. Owners of 2020 and 2021 trucks have reported cracked EGR coolers burning coolant.\u003c\/p\u003e\n\u003ch3\u003eDoes the WCFab billet coolant tank cap fit my Ram?\u003c\/h3\u003e\n\u003cp\u003eIt is listed for 2004.5-2024 Cummins trucks, which covers the 2019-2024 Ram 2500 and 3500, and for 2001-2024 6.6L Duramax trucks. Use the fitment checker on the product page to confirm against your truck.\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":"wcfab-billet-aluminum-coolant-tank-cap-clear-anodized","title":"WCFab WCF100472 Billet Aluminum Coolant Tank Cap (2001-2024 6.6L Duramax \/ 2004.5-2024 Cummins)","description":"\u003cdiv class=\"sds-pd-intro\"\u003e\u003cp\u003eThis is WCFab's billet aluminum replacement cap for its fabricated coolant tanks, rated 18-20PSI and clear anodized. WCFab lists it for its tanks on 2001-2024 6.6L Duramax and 2004.5-2024 Cummins trucks. You buy it when the cap on your WCFab tank is lost or damaged, or when you want a matching spare instead of a universal cap.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv class=\"sds-pd-body\"\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eWCF100472 is sold as the replacement cap for WCFab fabricated coolant tanks. In WCFab's words, it is used on WCFab Fabricated Coolant Tanks on 2001+ Duramax or 2004.5-2024 6.7L Cummins. On the Duramax side, that means 2001-2024 trucks with the 6.6L \u003ca href=\"\/collections\/duramax\"\u003eDuramax\u003c\/a\u003e and a WCFab tank installed. On the \u003ca href=\"\/collections\/cummins\"\u003eCummins\u003c\/a\u003e side, the title range of 2004.5-2024 takes in Dodge Ram and Ram 2500\/3500 trucks with the 2004.5-2007 5.9L and the 6.7L.\u003c\/p\u003e\n\u003cp\u003eOur catalog tags also list 1998.5-2002 24-valve trucks, but the title starts at 2004.5, so we go with the narrower range. Verify fitment by VIN, and if you're not sure which coolant tank is on your truck, call us before you order.\u003c\/p\u003e\n\u003ch2\u003eWhy this part\u003c\/h2\u003e\n\u003cp\u003eA coolant tank cap is a pressure part, not just a lid. This one is rated 18-20PSI, the rating WCFab puts on the cap for its own tanks, so you put back the same rating instead of guessing with a universal cap. It's made from billet aluminum with a clear anodized finish.\u003c\/p\u003e\n\u003cp\u003eOne shop note for 6.7L Cummins owners: coolant pushing into the tank is not always a cap problem. Head-gasket failures are listed as more common on the 6.7L than on the 5.9L because of higher cylinder pressure, and the signs are coolant pushing into the degas bottle and overheating under load. The larger head bolts used from 2019 were meant to address it, so it's a lower-probability item on 2019 and newer engines. If your tank keeps pushing coolant, have the system checked before you swap the cap and call it fixed.\u003c\/p\u003e\n\u003ch2\u003eWhat you get\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOne billet aluminum coolant tank cap\u003c\/li\u003e\n\u003cli\u003e18-20PSI pressure rating\u003c\/li\u003e\n\u003cli\u003eClear anodized finish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePart number: WCF100472 (this listing also carries SKU WCF100543)\u003c\/li\u003e\n\u003cli\u003eDescription: 18-20PSI Replacement Coolant Tank Cap, Clear Anodized\u003c\/li\u003e\n\u003cli\u003eMaterial: billet aluminum\u003c\/li\u003e\n\u003cli\u003eUsed on: WCFab Fabricated Coolant Tanks on 2001+ Duramax or 2004.5-2024 6.7L Cummins\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAbout Wehrli Custom Fabrication\u003c\/h2\u003e\n\u003cp\u003eWehrli Custom Fabrication, better known as WCFab, has been building diesel truck parts in DeKalb, Illinois, since 2010. The line covers fabricated intake, intercooler, cooling and traction parts, including the coolant tank kits this cap goes on. Most of it is built for the 6.6L Duramax, with Cummins and 6.7L Powerstroke parts as well. See the full line on our \u003ca href=\"\/collections\/wcfab\"\u003eWCFab page\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eWill this cap fit my factory coolant reservoir?\u003c\/h3\u003e\n\u003cp\u003eIt's sold as the replacement cap for WCFab fabricated coolant tanks. We don't list it for factory reservoirs, so if your truck still has the stock tank, call us and we'll help you find the right cap.\u003c\/p\u003e\n\u003ch3\u003eWhat pressure is this cap rated for?\u003c\/h3\u003e\n\u003cp\u003e18-20PSI. That's the rating WCFab lists for this clear anodized cap.\u003c\/p\u003e\n\u003ch3\u003eMy 6.7L keeps pushing coolant into the tank. Is the cap bad?\u003c\/h3\u003e\n\u003cp\u003eIt might be, but check further before you replace it. On the 6.7L Cummins, a head-gasket problem shows up as coolant pushing into the degas bottle and overheating under load. It's less likely on 2019 and newer engines with the larger head bolts, but a new cap won't fix 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":"Wehrli Custom Fabrication","offers":[{"title":"Clear","offer_id":52019060015392,"sku":"WCF100472","price":38.99,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":52019060048160,"sku":"WCF100543","price":38.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/wcfab-wcf100472-billet-aluminum-coolant-tank-cap-clear-anodized-2001-2024-duramax-20045-2024-cummins-9188701.png?v=1779548351"},{"product_id":"wcfab-wcf100284-6-7l-cummins-oem-placement-coolant-tank-kit","title":"WCFab WCF100284 OEM Placement Coolant Tank Kit (2019-2024 6.7L Cummins)","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e-Coolant Tank\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e-Low Coolant Level Sensor\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e-Black Anodized Billet Aluminum Cap\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e-Over Flow Hose\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e-Coolant Level Sight Glass\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e-Installation hardware\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e-Heat Shield Wrap\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e-Powder Coating\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e2019-2024 6.7L Cummins Fabricated Aluminum Coolant Tank Kit, mounts in OEM coolant tank location.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDress up your engine bay by replacing the ugly clear plastic coolant reservoir with our custom powder coated fabricated aluminum coolant tank with sight glass\u003c\/li\u003e\n\u003cli\u003eIncludes black anodized CNC machined billet aluminum cap, coolant level sight glass, mounting hardware, overflow hose and low coolant sensor\u003c\/li\u003e\n\u003cli\u003eWill fit on stock trucks with no other modifications necessary\u003c\/li\u003e\n\u003cli\u003eUses OEM mounting points\u003c\/li\u003e\n\u003cli\u003eInstalls with basic hand tools\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eReplaces the following MOPAR Part Numbers: 68370066AC\u003c\/p\u003e\n\u003cp\u003eCompatible with stock \/ drop-in turbo setups. Low profile design eliminates engine side bracket found on stock plastic tanks and offers significantly improved clearance for lower front edge of tank assembly vs. stock allowing for better compatibility with aftermarket turbo setups.\u003c\/p\u003e","brand":"Wehrli Custom Fabrication","offers":[{"title":"Bengal Blue","offer_id":50196135051552,"sku":"WCF100284-BB","price":529.99,"currency_code":"USD","in_stock":true},{"title":"Bronze Chrome","offer_id":67663856632096,"sku":"WCF100284-BC","price":549.99,"currency_code":"USD","in_stock":true},{"title":"Bengal Grey","offer_id":67663856664864,"sku":"WCF100284-BG","price":529.99,"currency_code":"USD","in_stock":true},{"title":"Bengal Red","offer_id":67663856697632,"sku":"WCF100284-BR","price":529.99,"currency_code":"USD","in_stock":true},{"title":"Brizzle Blue","offer_id":67663856730400,"sku":"WCF100284-BRZ","price":529.99,"currency_code":"USD","in_stock":true},{"title":"Bengal Silver","offer_id":67663856763168,"sku":"WCF100284-BS","price":529.99,"currency_code":"USD","in_stock":true},{"title":"Cat Yellow","offer_id":67663856795936,"sku":"WCF100284-CAT","price":529.99,"currency_code":"USD","in_stock":true},{"title":"Candy Red","offer_id":67663856828704,"sku":"WCF100284-CR","price":549.99,"currency_code":"USD","in_stock":true},{"title":"Chevy Orange","offer_id":67663856861472,"sku":"WCF100284-CRO","price":529.99,"currency_code":"USD","in_stock":true},{"title":"Candy Teal","offer_id":67663856894240,"sku":"WCF100284-CT","price":549.99,"currency_code":"USD","in_stock":true},{"title":"Deore Gold","offer_id":67663856927008,"sku":"WCF100284-DG","price":549.99,"currency_code":"USD","in_stock":true},{"title":"Flat Black","offer_id":67663856959776,"sku":"WCF100284-FB","price":529.99,"currency_code":"USD","in_stock":true},{"title":"Fine Texture Black","offer_id":67663856992544,"sku":"WCF100284-FTB","price":529.99,"currency_code":"USD","in_stock":true},{"title":"Gloss Black","offer_id":67663857025312,"sku":"WCF100284-GB","price":529.99,"currency_code":"USD","in_stock":true},{"title":"Gun Metal","offer_id":67663857058080,"sku":"WCF100284-GM","price":529.99,"currency_code":"USD","in_stock":true},{"title":"WCFab Grey","offer_id":67663857090848,"sku":"WCF100284-GRY","price":549.99,"currency_code":"USD","in_stock":true},{"title":"Gloss White","offer_id":67663857123616,"sku":"WCF100284-GW","price":529.99,"currency_code":"USD","in_stock":true},{"title":"Illusion Blueberry","offer_id":67663857156384,"sku":"WCF100284-IBB","price":549.99,"currency_code":"USD","in_stock":true},{"title":"Illusion Purple","offer_id":67663857189152,"sku":"WCF100284-IP","price":549.99,"currency_code":"USD","in_stock":true},{"title":"Kiwi Green","offer_id":67663857221920,"sku":"WCF100284-KIWI","price":529.99,"currency_code":"USD","in_stock":true},{"title":"WCFab Red","offer_id":67663857254688,"sku":"WCF100284-RED","price":549.99,"currency_code":"USD","in_stock":true},{"title":"Sparkle Bomber Orange","offer_id":67663857287456,"sku":"WCF100284-SBO","price":549.99,"currency_code":"USD","in_stock":true},{"title":"Sparkle Copper","offer_id":67663857320224,"sku":"WCF100284-SC","price":549.99,"currency_code":"USD","in_stock":true},{"title":"Semi-Gloss Black","offer_id":67663857352992,"sku":"WCF100284-SGB","price":529.99,"currency_code":"USD","in_stock":true},{"title":"Sparkle Granny Smith","offer_id":67663857385760,"sku":"WCF100284-SGS","price":549.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/wcfab-wcf100284-67l-cummins-oem-placement-coolant-tank-kit-8505053.jpg?v=1779548111"},{"product_id":"mishimoto-mmrt-ram-19-aluminum-degas-bottle-wrinkle-black-2019-2025-cummins","title":"Mishimoto MMRT-RAM-19 Aluminum Degas Bottle (2019-2025 6.7L Cummins)","description":"\u003csection class=\"cmp-product-section cmp-product-section--toggle cmp-product-section--toggle-open animate--fade-in\" data-scroll=\"\"\u003e\n\u003cdiv class=\"cmp-product-details-wrapper\"\u003e\n\u003cdiv class=\"cmp-product-description\"\u003e\n\u003cdiv class=\"cmp-product-section__inner\"\u003e\n\u003cdiv class=\"cmp-product-description__content\"\u003e\n\u003cdiv class=\"cmp-product-force-font\"\u003eThe Mishimoto Aluminum Degas Bottle MMRT-RAM-19BK replaces the plastic expansion tank in your RAM 6.7L system with a durable, TIG-welded aluminum unit. Designed for direct-fit installation, it includes built-in internal baffling to keep coolant at the overflow port under high load and prevent air pockets. A sight glass lets you check coolant levels easily, and the wrinkle black finish provides a sleek, rugged appearance.\u003cbr\u003e\u003cbr\u003e\n\u003ch5\u003e\u003cspan\u003eFeatures:\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eWrinkle Black Finish For A Finished Look\u003c\/li\u003e\n\u003cli\u003eDirect-Fit Design Requires No Modifications\u003c\/li\u003e\n\u003cli\u003eSight Glass Allows Easy Coolant Level Monitoring\u003c\/li\u003e\n\u003cli\u003eInternal Baffles Help Maintain Coolant Stability Under Load\u003c\/li\u003e\n\u003cli\u003eTIG-Welded Aluminum Construction For Strength And Longevity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cmp-product-force-font\"\u003e\n\u003ca href=\"https:\/\/www.xtremediesel.com\/xtreme-diesel-performance-xdp-product-warranty-availability#warranty\"\u003e\u003cspan\u003e\u003cstrong\u003e\u003cu\u003eManufacturer Warranty*:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003cbr\u003eLimited Lifetime\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"Mishimoto Performance Parts","offers":[{"title":"Black","offer_id":51264425754912,"sku":"MMRT-RAM-19BK","price":559.99,"currency_code":"USD","in_stock":true},{"title":"Raw","offer_id":51264425787680,"sku":"MMRT-RAM-19N","price":559.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/mishimoto-mmrt-ram-19-aluminum-degas-bottle-2019-2025-cummins-3257066.webp?v=1779542356"}],"url":"https:\/\/www.southerndieselsupply.com\/collections\/ram-2019-2024-6-7l-cummins-cooling-system-coolant-tanks.oembed","provider":"Southern Diesel Supply","version":"1.0","type":"link"}