{"title":"LLY Duramax Cooling Parts","description":"\u003cp\u003eDirect-fit cooling parts for the LLY Duramax diesel. Every part here is matched to the LLY Duramax platform — confirm your model year before ordering to be sure of fitment. Orders ship fast, free over $70.\u003c\/p\u003e","products":[{"product_id":"lly-duramax-thermostat-kit-2004-5-2005-oem-97241129","title":"LLY Duramax Thermostat Kit 2004.5-2005 OEM 97241129","description":"\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis is a diesel cooling-system service part for the Chevrolet, GMC LLY Duramax diesel (2004.5-2005). Built to OEM specification and engineered as a direct-fit replacement for a professional-grade LLY Duramax repair or service. Every order ships fast and is backed by our support team.\u003c\/p\u003e\u003ch4\u003eWhat It Does \u0026amp; How It Helps\u003c\/h4\u003e\u003cp\u003eCooling components regulate engine temperature so a diesel warms up quickly and then holds the right operating temp for efficiency, emissions and long engine life. A thermostat stuck closed overheats the engine; stuck open it runs cold and sluggish, and a tired cap or hose lets the system leak or lose pressure. Fresh OE-spec cooling parts restore correct temperature control and a sealed, pressurized system.\u003c\/p\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ethe correct thermostat, cap or hose as specified\u003c\/li\u003e\n\u003cli\u003erelated cooling gaskets and seals where applicable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFitment\u003c\/h4\u003e\u003cp\u003eFits Chevrolet, GMC trucks equipped with the LLY Duramax diesel engine, 2004.5-2005. Please confirm your engine and year before ordering to ensure correct fitment.\u003c\/p\u003e\u003ch4\u003eCommon Symptoms \u0026amp; When to Use\u003c\/h4\u003e\u003cp\u003eConsider this LLY Duramax part when you experience:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eoverheating or slow warm-up\u003c\/li\u003e\n\u003cli\u003ecoolant leaks\u003c\/li\u003e\n\u003cli\u003ea stuck thermostat or failed cap\u003c\/li\u003e\n\u003cli\u003eroutine cooling-system service\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 97241129\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e LLY Duramax\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Range:\u003c\/strong\u003e 2004.5-2005\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eQuality \u0026amp; Service\u003c\/h4\u003e\u003cp\u003eFast shipping on in-stock orders. Free shipping on orders over $70. Backed by Core Diesel Parts — your source for LLY Duramax diesel parts.\u003c\/p\u003e","brand":"CoreDieselParts.com","offers":[{"title":"Default Title","offer_id":48816523804897,"sku":"CDP-CL-lly-duramax-01","price":44.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0843\/6593\/4817\/files\/lly-duramax-thermostat-kit-2004-5-2005-1.jpg?v=1785196739"},{"product_id":"lly-duramax-thermostat-kit-2001-2016","title":"LLY Duramax Thermostat Kit 2001-2016","description":"\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis is a diesel cooling-system service part for the Chevrolet, GMC LLY Duramax diesel (2001-2016). Built to OEM specification and engineered as a direct-fit replacement for a professional-grade LLY Duramax repair or service. Every order ships fast and is backed by our support team.\u003c\/p\u003e\u003ch4\u003eWhat It Does \u0026amp; How It Helps\u003c\/h4\u003e\u003cp\u003eCooling components regulate engine temperature so a diesel warms up quickly and then holds the right operating temp for efficiency, emissions and long engine life. A thermostat stuck closed overheats the engine; stuck open it runs cold and sluggish, and a tired cap or hose lets the system leak or lose pressure. Fresh OE-spec cooling parts restore correct temperature control and a sealed, pressurized system.\u003c\/p\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ethe correct thermostat, cap or hose as specified\u003c\/li\u003e\n\u003cli\u003erelated cooling gaskets and seals where applicable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFitment\u003c\/h4\u003e\u003cp\u003eFits Chevrolet, GMC trucks equipped with the LLY Duramax diesel engine, 2001-2016. Please confirm your engine and year before ordering to ensure correct fitment.\u003c\/p\u003e\u003ch4\u003eCommon Symptoms \u0026amp; When to Use\u003c\/h4\u003e\u003cp\u003eConsider this LLY Duramax part when you experience:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eoverheating or slow warm-up\u003c\/li\u003e\n\u003cli\u003ecoolant leaks\u003c\/li\u003e\n\u003cli\u003ea stuck thermostat or failed cap\u003c\/li\u003e\n\u003cli\u003eroutine cooling-system service\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e LLY Duramax\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Range:\u003c\/strong\u003e 2001-2016\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eQuality \u0026amp; Service\u003c\/h4\u003e\u003cp\u003eFast shipping on in-stock orders. Free shipping on orders over $70. Backed by Core Diesel Parts — your source for LLY Duramax diesel parts.\u003c\/p\u003e","brand":"CoreDieselParts.com","offers":[{"title":"Default Title","offer_id":48895816368353,"sku":"CDP-CL-lly-duramax-02","price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0843\/6593\/4817\/files\/lly-duramax-thermostat-kit-2001-2016-1.jpg?v=1786365450"},{"product_id":"lly-duramax-thermostat-kit-2001-2005","title":"LLY Duramax Thermostat Kit 2001-2005","description":"\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis is a diesel cooling-system service part for the Chevrolet, GMC LLY Duramax diesel (2001-2005). Built to OEM specification and engineered as a direct-fit replacement for a professional-grade LLY Duramax repair or service. Every order ships fast and is backed by our support team.\u003c\/p\u003e\u003ch4\u003eWhat It Does \u0026amp; How It Helps\u003c\/h4\u003e\u003cp\u003eCooling components regulate engine temperature so a diesel warms up quickly and then holds the right operating temp for efficiency, emissions and long engine life. A thermostat stuck closed overheats the engine; stuck open it runs cold and sluggish, and a tired cap or hose lets the system leak or lose pressure. Fresh OE-spec cooling parts restore correct temperature control and a sealed, pressurized system.\u003c\/p\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ethe correct thermostat, cap or hose as specified\u003c\/li\u003e\n\u003cli\u003erelated cooling gaskets and seals where applicable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFitment\u003c\/h4\u003e\u003cp\u003eFits Chevrolet, GMC trucks equipped with the LLY Duramax diesel engine, 2001-2005. Please confirm your engine and year before ordering to ensure correct fitment.\u003c\/p\u003e\u003ch4\u003eCommon Symptoms \u0026amp; When to Use\u003c\/h4\u003e\u003cp\u003eConsider this LLY Duramax part when you experience:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eoverheating or slow warm-up\u003c\/li\u003e\n\u003cli\u003ecoolant leaks\u003c\/li\u003e\n\u003cli\u003ea stuck thermostat or failed cap\u003c\/li\u003e\n\u003cli\u003eroutine cooling-system service\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e LLY Duramax\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Range:\u003c\/strong\u003e 2001-2005\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eQuality \u0026amp; Service\u003c\/h4\u003e\u003cp\u003eFast shipping on in-stock orders. Free shipping on orders over $70. Backed by Core Diesel Parts — your source for LLY Duramax diesel parts.\u003c\/p\u003e","brand":"CoreDieselParts.com","offers":[{"title":"Default Title","offer_id":48912418111713,"sku":"CDP-CL-lly-duramax-03","price":568.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0843\/6593\/4817\/files\/lly-duramax-thermostat-kit-2001-2005-1.jpg?v=1786613487"}],"url":"https:\/\/www.coredieselparts.com\/collections\/lly-duramax-cooling-parts.oembed","provider":"CoreDieselParts.com","version":"1.0","type":"link"}