{"product_id":"four-seasons-36945-engine-cooling-fan-clutch","title":"Four Seasons 36945 Engine Cooling Fan Clutch","description":"\u003ch2\u003eReliable Engine Cooling Fan Clutch for GM Trucks and SUVs\u003c\/h2\u003e\u003cp\u003eThe Four Seasons Fan Clutch 36945 is designed to provide dependable engine cooling performance for heavy-duty applications. Engineered with durable aluminum construction, this fan clutch is compatible with a range of Chevrolet, GMC, and Cadillac models, ensuring optimal cooling efficiency under demanding conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeavy-duty aluminum material for durability and heat resistance\u003c\/li\u003e\n\u003cli\u003eNon-electronic, mechanical clutch type (C - heavy duty)\u003c\/li\u003e\n\u003cli\u003eFour bolt holes with M10 x 1.5 thread for secure mounting\u003c\/li\u003e\n\u003cli\u003eMaximum clutch diameter of 7.2 inches and overall diameter of 182.9 mm\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple GM trucks and SUVs including Silverado, Sierra, Tahoe, Yukon, Escalade, and Avalanche\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFour Seasons Fan Clutch Product Line Overview\u003c\/h2\u003e\u003cp\u003eThe Four Seasons Fan Clutch line focuses on delivering reliable engine cooling components designed for heavy-duty use. This product line emphasizes performance-rated fan clutches that meet or exceed OEM specifications, providing consistent operation and durability. The 36945 model exemplifies this approach with its robust aluminum construction and precise fitment for GM vehicles.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description and Specifications\u003c\/h2\u003e\u003cp\u003eThis engine cooling fan clutch features a raw aluminum finish and a hex mounting type, ensuring a secure and precise installation. It includes four mounting holes and bolt holes, each designed with M10 x 1.5 threading. The clutch has a maximum diameter of 7.2 inches (182.9 mm) and an overall height of 3.47 inches (88.1 mm), with a pilot depth of 0.7 inches (17.8 mm) and pilot diameter of 1.18 inches (30 mm). The fan bolt circle measures 3.25 inches (82.6 mm), providing compatibility with a variety of fan blade assemblies. This non-electronic clutch operates with a reverse rotation, suitable for heavy-duty engine cooling needs.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Common Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eChevrolet Silverado 1500, 2500, 3500 (including Classic and HD variants)\u003c\/li\u003e\n\u003cli\u003eGMC Sierra 1500, 2500, 3500 (including Classic and HD variants)\u003c\/li\u003e\n\u003cli\u003eCadillac Escalade, Escalade ESV, Escalade EXT\u003c\/li\u003e\n\u003cli\u003eChevrolet Avalanche 1500 and C1500\u003c\/li\u003e\n\u003cli\u003eGMC Yukon, Yukon XL 1500, Yukon XL 2500\u003c\/li\u003e\n\u003cli\u003eChevrolet Suburban 1500, 2500 and Tahoe\u003c\/li\u003e\n\u003cli\u003eChevrolet Express 1500, 2500, 3500 and GMC Savana 1500, 2500, 3500\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Issues Addressed by This Fan Clutch\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOverheating due to worn or failing fan clutch engagement\u003c\/li\u003e\n\u003cli\u003eReduced engine cooling efficiency in heavy-duty driving conditions\u003c\/li\u003e\n\u003cli\u003eExcessive fan noise caused by slipping or damaged clutch\u003c\/li\u003e\n\u003cli\u003ePremature engine wear from inadequate temperature regulation\u003c\/li\u003e\n\u003cli\u003eFailure to maintain proper fan speed under varying engine loads\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation requires removal of the existing fan clutch and proper alignment of the four mounting bolts with M10 x 1.5 threads. The hex mounting type facilitates secure fastening. Note that mounting hardware is not included and should be sourced separately. Ensure the clutch is installed with the correct rotation direction (reverse) to match engine requirements. Verify all bolts are torqued to manufacturer specifications to prevent loosening during operation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eThe Four Seasons Fan Clutch 36945 is a new, performance-rated part that meets or exceeds OEM standards for durability and function. Manufactured with heavy-duty aluminum, it is designed to withstand demanding engine cooling conditions. While specific warranty details may vary, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.\u003c\/p\u003e","brand":"Four Seasons","offers":[{"title":"Default Title","offer_id":44597028585653,"sku":"BBRN-36945","price":61.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/FS_36945_Fro.jpg?v=1775068045","url":"https:\/\/www.partcatalog.com\/products\/four-seasons-36945-engine-cooling-fan-clutch","provider":"PartCatalog","version":"1.0","type":"link"}