{"product_id":"lly-duramax-fan-clutch-2004-5-2005","title":"LLY Duramax Fan Clutch 2004.5-2005","description":"\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis is an engine cooling fan clutch 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\u003eThe fan clutch decides how hard the engine fan pulls air through the radiator, charge-air cooler and condenser. A diesel makes far more heat under load than a gas engine, and towing or grades are exactly when a tired clutch gives up: the viscous fluid leaks down or the bearing wears, the fan freewheels, and coolant and intake temperatures climb the moment road speed drops. The opposite failure is a clutch locked permanently engaged, which roars constantly, robs power and hurts fuel economy. A correct replacement restores full commanded airflow at temperature and lets the fan disengage again when it should.\u003c\/p\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ea fan clutch matched to the engine as specified\u003c\/li\u003e\n\u003cli\u003emounting hardware where the assembly includes it\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 while towing, climbing a grade or idling in traffic\u003c\/li\u003e\n\u003cli\u003ehigh coolant or intake-air temperatures at low road speed\u003c\/li\u003e\n\u003cli\u003ea fan that roars constantly or never engages\u003c\/li\u003e\n\u003cli\u003ea leaking, seized or freewheeling fan clutch\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 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":48855507370209,"sku":"CDP-FC-lly-duramax-01","price":130.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0843\/6593\/4817\/files\/lly-duramax-fan-clutch-2004-5-2005-1.jpg?v=1785872484","url":"https:\/\/www.coredieselparts.com\/products\/lly-duramax-fan-clutch-2004-5-2005","provider":"CoreDieselParts.com","version":"1.0","type":"link"}