{"title":"GMC, (2020-2023), L5P, Cooling System, Parts","description":"","products":[{"product_id":"duramax-billet-coolant-block-off-plate-2001-2017-fleece-performance","title":"Fleece Performance Engineering FPE-DMAX-CBOP Billet Coolant Block Off Plate (2001-2025 6.6L Duramax)","description":"\u003cp\u003e2001-2025 Duramax Billet Coolant Block Off Plate (Replaces GM P\/N: 97941204) OE covers are prone to leakage as the gaskets dry out and factory cast covers corrode.\u003c\/p\u003e\n\u003cp\u003eOur billet coolant block off plate with an integral O-ring is an upgrade for your rear engine cover and will the stop the coolant leaks for good.\u003c\/p\u003e","brand":"Fleece Performance Engineering","offers":[{"title":"Default Title","offer_id":49654036857120,"sku":"FPE-DMAX-CBOP","price":58.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/fleece-fpe-dmax-cbop-duramax-billet-coolant-block-off-plate-2001-2025-duramax-5374201.jpg?v=1779552128"},{"product_id":"wcfab-billet-heater-core-firewall-fitting","title":"WCFab WCF100155 Billet Heater Core Firewall Fitting (2001-2023 6.6L Duramax)","description":"\u003ch2\u003e\n\tFitment\u003c\/h2\u003e\n\u003cdiv style=\"margin-left: 40px;\"\u003e\n\t\u003cp class=\"p1\" style='margin: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: \"Helvetica Neue\"; color: rgb(0, 0, 0);'\u003e\n\t\t\u003cspan style=\"font-size: 16px;\"\u003e\u003cspan style=\"font-family: tahoma, geneva, sans-serif;\"\u003eThe factory plastic GM Coolant Heater Core Firewall Fitting is a common failure point on Duramax trucks and other GM vehicles. Our made in the USA, billet aluminum direct-fit replacement is more resistant to heat and vibration. Prevent leaks with this easy to install upgrade.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\t\u003cp class=\"p1\" style='margin: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: \"Helvetica Neue\"; color: rgb(0, 0, 0);'\u003e\n\t\t\u003cspan style=\"font-size: 16px;\"\u003e\u003cspan style=\"font-family: tahoma, geneva, sans-serif;\"\u003e\u003cbr\u003e\n\t\tReplaces GM\/AC Delco Part Number 15032062 and Dorman Part Number 800-409\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\n\tFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\t\u003cli style=\"margin-left: 40px;\"\u003e\n\t\t\u003cspan style=\"font-size:16px;\"\u003e\u003cspan style=\"font-family:tahoma,geneva,sans-serif;\"\u003e\u003cspan style=\"color: rgb(51, 51, 51);\"\u003eReplaces failure prone plastic factory GM Heater Core Firewall Coolant Fitting\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\t\u003cli style=\"margin-left: 40px;\"\u003e\n\t\t\u003cspan style=\"font-size:16px;\"\u003e\u003cspan style=\"font-family:tahoma,geneva,sans-serif;\"\u003e\u003cspan style=\"color: rgb(51, 51, 51);\"\u003eBillet direct-fit replacement with 5\/8\" barb connection\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\t\u003cli style=\"margin-left: 40px;\"\u003e\n\t\t\u003cspan style=\"font-size:16px;\"\u003e\u003cspan style=\"font-family:tahoma,geneva,sans-serif;\"\u003e\u003cspan style=\"color: rgb(51, 51, 51);\"\u003eMore resistant to heat and vibration\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\t\u003cli style=\"margin-left: 40px;\"\u003e\n\t\t\u003cspan style=\"font-size:16px;\"\u003e\u003cspan style=\"font-family:tahoma,geneva,sans-serif;\"\u003e\u003cspan style=\"color: rgb(51, 51, 51);\"\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(51, 51, 51);\"\u003eDouble O-ring seal\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\t\u003cli style=\"margin-left: 40px;\"\u003e\n\t\t\u003cspan style=\"font-size:16px;\"\u003e\u003cspan style=\"font-family:tahoma,geneva,sans-serif;\"\u003e\u003cspan style=\"color: rgb(51, 51, 51);\"\u003eClear Anodized finished to resist corrosion\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\t\u003cli style=\"margin-left: 40px;\"\u003e\n\t\t\u003cspan style=\"font-size:16px;\"\u003e\u003cspan style=\"font-family:tahoma,geneva,sans-serif;\"\u003e\u003cspan style=\"color: rgb(51, 51, 51);\"\u003eReplaces GM\/AC Delco Part Number 15032062 and Dorman Part Number 800-409\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Wehrli Custom Fabrication","offers":[{"title":"Default Title","offer_id":50068581941536,"sku":"WCF100155","price":42.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/wcfab-wcf100155-billet-heater-core-firewall-fitting-2001-2023-duramax-7330424.jpg?v=1779548352"},{"product_id":"wcfab-billet-aluminum-coolant-tank-cap-black-anodized","title":"WCFab WCF100543 Billet Aluminum Coolant Tank Cap, Black Anodized (2001-2024 Duramax; 2004.5-2024 Cummins)","description":"\u003ch2\u003e\n\tGeneral Description\u003c\/h2\u003e\n\u003cdiv style=\"margin-left: 40px;\"\u003e\n\t\u003cspan style=\"color: rgb(51, 51, 51); font-family: tahoma, geneva, sans-serif; font-size: 16px;\"\u003e18-20PSI Replacement Coolant Tank Cap, Black Anodized. Used on WCFab Fabricated Coolant Tanks on 2001+ Duramax or 2013-2018 6.7L Cummins.\u003c\/span\u003e\n\u003c\/div\u003e","brand":"Wehrli Custom Fabrication","offers":[{"title":"Default Title","offer_id":50068583383328,"sku":"WCF100543","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/wcfab-wcf100543-billet-aluminum-coolant-tank-cap-black-anodized-2001-2024-duramax-20045-2024-cummins-6651536.jpg?v=1779548349"},{"product_id":"wcfab-billet-aluminum-coolant-tank-cap-clear-anodized","title":"WCFab WCF100472 Billet Aluminum Coolant Tank Cap, Clear Anodized (2001-2024 Duramax; 2004.5-2024 Cummins)","description":"\u003ch2\u003e\n\tGeneral Description\u003c\/h2\u003e\n\u003cdiv style=\"margin-left: 40px;\"\u003e\n\t\u003cspan style=\"color: rgb(51, 51, 51); font-family: tahoma, geneva, sans-serif; font-size: 16px;\"\u003e18-20PSI Replacement Coolant Tank Cap, Clear Anodized. Used on WCFab Fabricated Coolant Tanks on 2001+ Duramax or 2013-2018 6.7L Cummins.\u003c\/span\u003e\n\u003c\/div\u003e","brand":"Wehrli Custom Fabrication","offers":[{"title":"Default Title","offer_id":50068583416096,"sku":"WCF100472","price":39.99,"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-wcf100541-l5p-duramax-upper-coolant-pipe-kit","title":"WCFab WCF100541 Upper Coolant Pipe Kit (2020-2025 Duramax)","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e-Coolant Pipe\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e-Silicone Boots\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e-T-Bolt Clamps\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e-Powder Coating\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eUpper Coolant Pipe for 2020-2025 L5P 6.6L Duramax equipped Chevrolet Silverado or GMC Sierra 2500 \/ 3500 truck replaces the ugly OEM rubber upper radiator hose with a fabricated aluminum hard pipe powder coated in your color of choice! For use with OEM GM radiator. Aftermarket radiators may cause fitment issues.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCleans up engine bay appearance\u003c\/li\u003e\n\u003cli\u003eIncludes high-quality silicone boots and stainless t-bolt clamps\u003c\/li\u003e\n\u003cli\u003eWill fit on stock trucks with no other modifications necessary\u003c\/li\u003e\n\u003cli\u003eInstalls easily with basic hand tools\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eReplaces the following GM part numbers: 84813629, 85122989\u003c\/p\u003e","brand":"Wehrli Custom Fabrication","offers":[{"title":"Default Title","offer_id":50199626547488,"sku":"WCF100541","price":168.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/wcfab-wcf100541-upper-coolant-pipe-kit-2020-2025-duramax-8448733.jpg?v=1779548051"},{"product_id":"wcfab-wcf206-19-2001-2010-2017-2025-duramax-low-coolant-level-sensor","title":"WCFab WCF206-19 Low Coolant Level Sensor (2001-2010; 2017-2025 Duramax)","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eCorrect replacement sensor for WCFab Fabricated Coolant Tanks designed for LB7, LLY, LBZ, LMM and L5P Duramax trucks\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eReplacement Coolant Level Sensor for 2001-2010 \u0026amp; 2017-2025 Duramax's using a WCFab Fabricated Coolant Tank.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eNOTE: This is not a direct replacement for your truck's plastic OEM tank. If you have a defective stock plastic coolant tank with the non-removable sensor and are looking to replace that, please see our complete replacement aluminum coolant tank options which use this serviceable sensor option.\u003c\/span\u003e\u003c\/p\u003e","brand":"Wehrli Custom Fabrication","offers":[{"title":"Default Title","offer_id":50207964397856,"sku":"WCF206-19","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/wcfab-wcf206-19-low-coolant-level-sensor-2001-2010-2017-2025-duramax-6781118.jpg?v=1779547992"},{"product_id":"wcfab-wcf100188-2017-2025-l5p-duramax-thermostat-housing","title":"WCFab WCF100188 Thermostat Housing (2017-2026 6.6L Duramax)","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e- Direct Replacement for OEM Thermostat Housing\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Custom Powder Coat Finish\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Cleans up engine bay appearance\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Completes the look when also running one of our Upper Coolant Pipes\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThis Thermostat Housing for 2017-2026 6.6L Duramax is a direct replacement upgrade for the unsightly OEM part. Comes powder coated in your choice of color to complement other upgrades such as our Intake Kit, Intercooler Piping, Upper Coolant Pipe, and Coolant Tank.\u003c\/span\u003e\u003c\/p\u003e","brand":"Wehrli Custom Fabrication","offers":[{"title":"Default Title","offer_id":50622077108512,"sku":"WCF100188","price":185.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/wcfab-wcf100188-thermostat-housing-2017-2025-duramax-3811376.jpg?v=1779546251"},{"product_id":"csf-10927-ac-condenser-2020-2023-duramax","title":"CSF 10927 AC Condenser (2020-2025 6.6L Duramax)","description":"\u003cp class=\"p1\"\u003eSDS has the CSF 10927 A\/C Condenser you need to replace the damaged condenser in your 2020-2023 GM 6.6L Duramax L5P or 6.6L Gas 2500\/3500. This condenser is specifically designed to fit 2500\/3500 models and has been constructed in ISO\/TSO-certified factories to the OE specifications. Each condenser mounts using the factory mounting points and AC plumbing for a straightforward installation.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eFEATURES:\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003eDirect-Fit Replacement\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eUses Factory Mounting Points\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eManufactured In ISO\/TSO Certified Factories\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eSpecifications:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"p1\"\u003eCore Length (in): 36.80\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eCore Thickness (In): 5\/8\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eCore Width (in): 14\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eInlet Tube: Block Fitting\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eOutlet Tube: Block Fitting\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CSF","offers":[{"title":"Default Title","offer_id":50833903616288,"sku":"10927","price":108.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/csf-10927-ac-condenser-2020-2023-duramax-4862308.png?v=1779545591"},{"product_id":"mahle-gs34037-water-pump-gasket-2017-2020-duramax","title":"MAHLE GS34037 Water Pump Gasket (2017-2020 6.6L Duramax)","description":"\u003cdiv\u003eThe MAHLE GS34037 Water Pump Gasket replaces the leaking water pump gasket on your L5P Duramax. MAHLE gaskets are made to match the specs of the OEM gasket and are designed to be a direct-fit replacement. \u003cbr\u003e\n\u003ch5\u003e\u003cspan\u003eFeatures:\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eDirect-Fit Installation\u003c\/li\u003e\n\u003cli\u003eMaintains The Factory Function\u003c\/li\u003e\n\u003cli\u003eOE-Style Replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv data-hook=\"variant_changed__data\" data-contentsection=\"render_carb_restriction\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003e\u003cstrong\u003eNote: \u003c\/strong\u003e\u003c\/span\u003eContains All Gaskets Required For Water Pump Installation\u003c\/div\u003e","brand":"Mahle","offers":[{"title":"Default Title","offer_id":51146741547296,"sku":"GS34037","price":25.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/mahle-gs34037-water-pump-gasket-2017-2020-duramax-3066837.jpg?v=1779543848"},{"product_id":"mahle-c33756-water-pump-outlet-pipe-gasket-2017-2020-duramax","title":"MAHLE C33756 Water Pump Outlet Pipe Gasket (2017-2020 Duramax)","description":"\u003cdiv\u003eInstall the MAHLE C33756 Water Pump Outlet Pipe Gasket onto your GM 6.6L Duramax L5P. This OE-style replacement gasket meets all factory specifications and ensures an OEM fit and function. MAHLE gaskets are trusted by OEMs and Technicians worldwide for their world-class sealing products.\u003cbr\u003e\u003cbr\u003e\n\u003ch5\u003e\u003cspan\u003eFeatures:\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eOE-Style Replacement\u003c\/li\u003e\n\u003cli\u003eMeets Factory Specs\u003c\/li\u003e\n\u003cli\u003eMaintains OEM Function\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Mahle","offers":[{"title":"Default Title","offer_id":51156341850400,"sku":"C33756","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/mahle-c33756-water-pump-outlet-pipe-gasket-2017-2020-duramax-1520889.jpg?v=1779543667"},{"product_id":"mahle-c33755-thermostat-bypass-pipe-gasket-2017-2020-duramax","title":"MAHLE C33755 Thermostat Bypass Pipe Gasket (2017-2020 6.6L Duramax)","description":"\u003cdiv\u003eThe MAHLE C33755 Thermostat Bypass Pipe Gasket provides your GM 6.6L Duramax L5P with a tight and dependable seal. This gasket is an OE-style replacement that meets factory specifications and ensures an OEM fit and function. MAHLE gaskets are trusted by OEMs and Technicians worldwide for their world-class products.\u003cbr\u003e\u003cbr\u003e\n\u003ch5\u003e\u003cspan\u003eFeatures:\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eOE-Style Replacement\u003c\/li\u003e\n\u003cli\u003eMeets Factory Specs\u003c\/li\u003e\n\u003cli\u003eMaintains OEM Function\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Mahle","offers":[{"title":"Default Title","offer_id":51156352925984,"sku":"C33755","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/mahle-c33755-thermostat-bypass-pipe-gasket-2017-2020-duramax-2299901.jpg?v=1779543667"},{"product_id":"merchant-automotive-10089-billet-coolant-block-off-plate-2001-2025-duramax","title":"Merchant Automotive 10089 Billet Coolant Block-Off Plate (2001-2025 6.6L Duramax)","description":"\u003csection data-scroll=\"\" class=\"cmp-product-section cmp-product-section--toggle cmp-product-section--toggle-open animate--fade-in\"\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\"\u003e\n\u003cdiv\u003eGet the Merchant Automotive 10089 Billet Coolant Block-Off Plate from SDS for your GM 6.6L Duramax LB7\/LLY\/LBZ\/LMM\/LML\/L5P. Merchant Automotive designed this durable replacement plate to eliminate the coolant leaking issue on your Duramax engine. The factory coolant block-off plate has a cast design with a gasket. Over time, this plate commonly begins to leak. Merchant Automotive manufactured this billet block-off plate with a built-in O-ring seal for a leak-free installation.\u003cbr\u003e\n\u003c\/div\u003e\n\u003ch5\u003e\u003cbr\u003e\u003c\/h5\u003e\n\u003ch5\u003eFeatures:\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eBillet Construction \u003c\/li\u003e\n\u003cli\u003eReplaces Factory Block-Off Plate \u003c\/li\u003e\n\u003cli\u003eInstalls Using Factory Bolts \u0026amp; Hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"Merchant Automotive","offers":[{"title":"Default Title","offer_id":51230053237024,"sku":"10089","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/merchant-automotive-10089-billet-coolant-block-off-plate-2001-2025-duramax-2182987.jpg?v=1779542949"},{"product_id":"2017-2026-duramax-l5p-failed-coolant-bottle-sensor-fooler","title":"2001-2010 \u0026 2017-2023 Duramax L5P Failed Coolant Bottle Sensor Fooler","description":"\u003cp data-start=\"108\" data-end=\"169\"\u003e\u003cstrong data-start=\"108\" data-end=\"169\"\u003e2001-2010 \u0026amp; 2017–2023 Duramax L5P Failed Coolant Bottle Sensor Fooler\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"171\" data-end=\"438\"\u003eKeep your Duramax running strong without unnecessary warnings. This \u003cstrong data-start=\"239\" data-end=\"283\"\u003eDuramax L5P Coolant Bottle Sensor Fooler\u003c\/strong\u003e is engineered to eliminate false low-coolant warnings caused by a failed or flaky coolant reservoir level sensor — a common issue on 2017–2025 L5P trucks.\u003c\/p\u003e\n\u003cp data-start=\"440\" data-end=\"456\"\u003e\u003cstrong data-start=\"440\" data-end=\"456\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"457\" data-end=\"1118\"\u003e\n\u003cli data-start=\"457\" data-end=\"609\"\u003e\n\u003cp data-start=\"459\" data-end=\"609\"\u003e\u003cstrong data-start=\"459\" data-end=\"490\"\u003eDirect plug-and-play design\u003c\/strong\u003e — installs easily in place of the factory reservoir sensor with no cutting, splicing, or redesigning wiring harnesses.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"610\" data-end=\"766\"\u003e\n\u003cp data-start=\"612\" data-end=\"766\"\u003e\u003cstrong data-start=\"612\" data-end=\"641\"\u003eReliable signal emulation\u003c\/strong\u003e — mimics the factory sensor’s resistance range so the ECM reads a healthy coolant level even when the original sensor fails.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"767\" data-end=\"889\"\u003e\n\u003cp data-start=\"769\" data-end=\"889\"\u003e\u003cstrong data-start=\"769\" data-end=\"795\"\u003ePrevents nuisance CELs\u003c\/strong\u003e — stops annoying dashboard alerts and limp-down conditions tied to the coolant bottle sensor.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"890\" data-end=\"991\"\u003e\n\u003cp data-start=\"892\" data-end=\"991\"\u003e\u003cstrong data-start=\"892\" data-end=\"916\"\u003eBuilt for LB7, LLY, LBZ, LMM and L5P Trucks\u003c\/strong\u003e — specifically calibrated for the 2017–2026 Duramax (L5P) engine platform that is known to have the most issues with this problem.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"992\" data-end=\"1118\"\u003e\n\u003cp data-start=\"994\" data-end=\"1118\"\u003e\u003cstrong data-start=\"994\" data-end=\"1020\"\u003eDurable and dependable\u003c\/strong\u003e — built to withstand under-hood heat, vibration, and exposure common in diesel work environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1120\" data-end=\"1440\"\u003e\u003cstrong data-start=\"1120\" data-end=\"1139\"\u003eWhy You Need It\u003c\/strong\u003e\u003cbr\u003eFailed coolant bottle sensors are a known weak point on L5P Duramax trucks. When they glitch, the truck can throw a code and trigger warnings even when coolant levels are fine. This fooler gives the ECM a clean, stable signal — eliminating false alarms so you can stay focused on the road or the job.\u003c\/p\u003e\n\u003cp data-start=\"1442\" data-end=\"1630\"\u003e\u003cstrong data-start=\"1442\" data-end=\"1459\"\u003eCompatibility\u003c\/strong\u003e\u003cbr\u003e✔ Fits all 2017–2025 GM 6.6L Duramax L5P equipped with the stock coolant reservoir level sensor\u003cbr data-start=\"1555\" data-end=\"1558\"\u003e✔ Ideal for performance builds, race trucks, tow rigs, and daily drivers\u003c\/p\u003e\n\u003cp data-start=\"1632\" data-end=\"1651\"\u003e\u003cstrong data-start=\"1632\" data-end=\"1651\"\u003eWhat’s Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1652\" data-end=\"1715\"\u003e\n\u003cli data-start=\"1652\" data-end=\"1687\"\u003e\n\u003cp data-start=\"1654\" data-end=\"1687\"\u003e1x Coolant Bottle Sensor Fooler\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp data-start=\"1717\" data-end=\"1837\"\u003e\u003cstrong data-start=\"1717\" data-end=\"1739\"\u003eQuick Install Tip:\u003c\/strong\u003e No special tools required — swap it in in minutes and clear any stored codes with your scan tool.\u003c\/p\u003e","brand":"Performance Diesel Worx","offers":[{"title":"Default Title","offer_id":51264043450656,"sku":"PDW-COOL-FIX","price":44.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/2001-2010-2017-2023-duramax-l5p-failed-coolant-bottle-sensor-fooler-5955026.jpg?v=1781012528"},{"product_id":"xdp-xd344-hd-billet-coolant-block-off-plate-2001-2025-duramax","title":"XDP XD344 HD Billet Coolant Block-Off Plate (2001-2025 Duramax)","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\"\u003ePut the XDP HD Billet Coolant Block-Off Plate XD344 in your GM 6.6L Duramax to permanently eliminate coolant leaks from the rear housing on your Duramax engine. The factory cover uses a gasket and over time the plate can warp, and the gaskets can corrode causing coolant leaks. The XD344 is made from CNC-machined billet aluminum and features a built-in O-ring seal for a leak-free installation. Each coolant block-off plate comes with a black anodized finish and is ready to install re-using your factory hardware. \u003cbr\u003e\u003cbr\u003e\n\u003ch5\u003eFeatures: \u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt-In O-Ring Seal \u003c\/li\u003e\n\u003cli\u003eBlack Anodized Finish \u003c\/li\u003e\n\u003cli\u003eBillet Aluminum Construction \u003c\/li\u003e\n\u003cli\u003eEliminate Rear Housing Coolant Leaks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\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\u003e2 Year \/ Unlimited Mileage\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"XDP MFG","offers":[{"title":"Default Title","offer_id":51302985302304,"sku":"XD344","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/xdp-xd344-hd-billet-coolant-block-off-plate-2001-2025-duramax-2481627.webp?v=1779541690"},{"product_id":"ppe-119000820-black-coolant-block-off-plate-2001-2026-duramax","title":"PPE 119000820 Black Coolant Block-Off Plate (2001-2026 Duramax)","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThe OEM block off plate uses a gasket and can leak over time. The PPE billet block off plate is thicker and uses an O-ring seal. The O-ring is made from Viton more maximum longevity. The PPE billet block off plate installs using the OEM fasteners.\u003c\/span\u003e\u003c\/p\u003e","brand":"Pacific Performance Engineering","offers":[{"title":"Default Title","offer_id":51538685821216,"sku":"119000820","price":53.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/ppe-119000820-black-coolant-block-off-plate-2001-2026-duramax-2030896.webp?v=1779540969"},{"product_id":"ppe-119030100-t304-stainless-steel-coolant-tube-2001-2026-duramax","title":"PPE 119030100 T304 Stainless Steel Coolant Tube (2001-2026 Duramax)","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eSpecifically designed for use in conjunction with the factory oil cooler filter housing. This coolant pipe is custom fabricated with a heavy-duty flange. 304 stainless steel construction prevents corrosion compared with OEM mild steel pipe which is prone to rusting and eventually leaking.\u003c\/span\u003e\u003c\/p\u003e","brand":"Pacific Performance Engineering","offers":[{"title":"Raw","offer_id":51538800607520,"sku":"119030100","price":197.99,"currency_code":"USD","in_stock":true},{"title":"Polished","offer_id":51538800640288,"sku":"119030130","price":197.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/ppe-119030100-t304-stainless-steel-coolant-tube-2001-2026-duramax-8901615.webp?v=1779540972"},{"product_id":"ppe-119000803-flywheel-housing-cover-coolant-block-off-plate-gasket-2001-2026-duramax","title":"PPE 119000803 Flywheel Housing Cover Coolant Block-Off Plate Gasket (2001-2026 Duramax)","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e301 Stainless Steel flywheel housing cover coolant block-off plate gasket for 2001-2025 GM 6.6L Duramax engine.\u003c\/span\u003e\u003c\/p\u003e","brand":"Pacific Performance Engineering","offers":[{"title":"Default Title","offer_id":51543196959008,"sku":"119000803","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/ppe-119000803-flywheel-housing-cover-coolant-block-off-plate-gasket-2001-2026-duramax-7100288.webp?v=1779540792"},{"product_id":"ppe-114002700-fuel-coolant-pump-relocation-kit-2020-2026-duramax","title":"PPE 114002700 Fuel Coolant Pump Relocation Kit (2020-2026 Duramax)","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cspan\u003eAllows increased capacity and filtration benefits of the larger PPE Oil Filter (\u003c\/span\u003e\u003ca href=\"https:\/\/ppepower.com\/products\/premium-high-efficiency-engine-oil-filter-replaces-ac-delco-pf26-2020-2025-gm-6-6l-duramax\" target=\"_blank\"\u003e114000750\u003c\/a\u003e\u003cspan\u003e)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eKit replaces the factory fuel coolant pump mounting bracket and moves the pump away from the oil filter housing. This allows for the use of the bigger, better \u003c\/span\u003e\u003ca rel=\"noopener\" href=\"https:\/\/ppepower.com\/products\/engine-oil-filter-oversize-oil-filter-requires-ppe-fuel-pump-relocation-kit?variant=42081939947763\" target=\"_blank\"\u003ePPE Deep Engine Oil Filter\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noopener\" href=\"https:\/\/ppepower.com\/products\/engine-oil-filter-oversize-oil-filter-requires-ppe-fuel-pump-relocation-kit?variant=42081939947763\" target=\"_blank\"\u003e114000750\u003c\/a\u003e\u003cspan\u003e, an essential upgrade for the L5P, providing superior 5-micron filtration and more than double the filter media size.\u003c\/span\u003e\u003c\/p\u003e","brand":"Pacific Performance Engineering","offers":[{"title":"Default Title","offer_id":51607317086496,"sku":"114002700","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/ppe-114002700-fuel-coolant-pump-relocation-kit-2020-2026-duramax-1986545.webp?v=1779540667"}],"url":"https:\/\/www.southerndieselsupply.com\/collections\/gmc-2020-2023-l5p-cooling-system-parts.oembed","provider":"Southern Diesel Supply","version":"1.0","type":"link"}