{"product_id":"cloyes-s289-engine-timing-crankshaft-sprocket-outer","title":"Cloyes S289 Engine Timing Crankshaft Sprocket - Outer","description":"\u003ch2\u003eTiming crankshaft sprocket for classic GM engines\u003c\/h2\u003e\u003cp\u003eCloyes S289 is a specific-fit engine timing crankshaft sprocket for a wide range of Chevrolet and GMC applications. It is built for timing systems that use a roller or double roller chain, with fitment that spans many classic truck, van, and passenger car platforms.\u003c\/p\u003e\u003ch2\u003eKey features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMetal construction for timing system service and engine rebuild work\u003c\/li\u003e\n\u003cli\u003eHelical tooth form for quieter operation\u003c\/li\u003e\n\u003cli\u003ePrecision-machined bore for accurate fit\u003c\/li\u003e\n\u003cli\u003eCAD-designed and manufactured with advanced materials\u003c\/li\u003e\n\u003cli\u003e22-tooth design with a keyway notch\u003c\/li\u003e\n\u003cli\u003eSpecific-fit design, not universal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed description\u003c\/h2\u003e\u003cp\u003eThe Cloyes Timing Crankshaft Sprocket, part number S289, is part of the timing gear and sprocket lineup used in complete timing kits or as an individual replacement component. Cloyes engineers this sprocket for dependable timing-system service, with extensive function and durability testing to support rebuilds and routine replacement jobs. The gold-finished metal construction, 1.25-inch inside diameter, and 0.55-inch thickness reflect a design intended for precise crankshaft engagement in compatible Chevrolet and GMC engines. This part cross-references Interchanges (e.g., 3735413) for the same application.\u003c\/p\u003e\u003cp\u003eCompatible With Chevrolet C10, Chevrolet Camaro, Chevrolet Corvette, GMC Jimmy, and many other classic Chevrolet and GMC models listed in the fitment data. Fits 1975-1986 Chevrolet C10, outer; Fits 1967-1981 Chevrolet Camaro, outer; Fits 1969-1986 Chevrolet K10 Suburban, outer; Fits 1970-1977 Chevrolet Monte Carlo, outer; Fits 1975-1979 GMC Jimmy, outer.\u003c\/p\u003e\u003ch2\u003eWhat it is used for\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacing a worn or damaged timing crankshaft sprocket\u003c\/li\u003e\n\u003cli\u003eRestoring correct chain engagement in a roller-chain timing system\u003c\/li\u003e\n\u003cli\u003eAddressing timing noise caused by worn sprocket teeth\u003c\/li\u003e\n\u003cli\u003eSupporting engine rebuilds that require timing component renewal\u003c\/li\u003e\n\u003cli\u003eReplacing a sprocket with bore wear or fitment issues\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation notes and tips\u003c\/h2\u003e\u003cp\u003eUse this sprocket only with the roller or double roller chain applications listed in the fitment data. Cloyes recommends replacing the chain tensioner, sprocket, and guide components together when servicing the timing chain so the system stays properly supported and tensioned. Verify the application notes for your Chevrolet or GMC engine before installation, since some listings require heavy-duty engine or specific chain-type conditions.\u003c\/p\u003e\u003ch2\u003eQuality assurance\u003c\/h2\u003e\u003cp\u003eCloyes states that this sprocket is CAD designed, manufactured with advanced materials, and tested for function and durability to support reliable timing-system performance.\u003c\/p\u003e","brand":"Cloyes","offers":[{"title":"Default Title","offer_id":53657929711797,"sku":"BBKX-S289","price":15.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/CT_S289_Fro.jpg?v=1793603804","url":"https:\/\/www.partcatalog.com\/products\/cloyes-s289-engine-timing-crankshaft-sprocket-outer","provider":"PartCatalog","version":"1.0","type":"link"}