{"product_id":"belt-tensioner-3976832-3937556-for-cummins-4bt-3-9-6bt-5-9-6ct-c8-3l-6c-6ct-6cta","title":"Belt Tensioner 3976832 3937556 for Cummins 4BT 3.9 6BT 5.9 6CT C8.3L 6C 6CT 6CTA","description":"\u003ch2\u003eBelt Tensioner 3976832 3937556 for Cummins\u003c\/h2\u003e\u003cp\u003eThis belt tensioner carries OEM cross-reference numbers 3976832 and 3937556 and is designed for Cummins 4BT, 6BT, 6CT, and 6CTA diesel engines.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis belt tensioner is a direct replacement for Cummins engine applications, maintaining proper tension on the serpentine or accessory drive belt. It fits 4BT 3.9, 6BT 5.9, 6CT C8.3L, 6C, 6CT, and 6CTA models, ensuring reliable operation of the alternator, water pump, and other belt-driven components.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHeavy-duty construction with a sealed bearing for long life\u003c\/li\u003e\n\u003cli\u003eSpring-loaded tension arm provides consistent belt force\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant coating on pulley and bracket\u003c\/li\u003e\n\u003cli\u003ePrecision-machined pulley for smooth rotation\u003c\/li\u003e\n\u003cli\u003eTested to meet OEM performance standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Cummins 4BT 3.9\u003c\/li\u003e\n\u003cli\u003efor Cummins 6BT 5.9\u003c\/li\u003e\n\u003cli\u003efor Cummins 6CT C8.3L\u003c\/li\u003e\n\u003cli\u003efor Cummins 6C\u003c\/li\u003e\n\u003cli\u003efor Cummins 6CT\u003c\/li\u003e\n\u003cli\u003efor Cummins 6CTA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCommonly used in industrial generators, agricultural equipment, and construction machinery\u003c\/li\u003e\n\u003cli\u003eRequired for engine rebuilds and belt system overhauls\u003c\/li\u003e\n\u003cli\u003eApplies to both on-highway and off-highway Cummins applications\u003c\/li\u003e\n\u003cli\u003eReplaces worn tensioners to prevent belt slip and noise\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3976832, 3937556\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is this tensioner the same as the original Cummins part? \u003cstrong\u003eA:\u003c\/strong\u003e This tensioner is an aftermarket replacement built to OEM specifications, not a genuine Cummins part, but it is designed to match fit and function.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can I install this tensioner without special tools? \u003cstrong\u003eA:\u003c\/strong\u003e Installation typically requires basic hand tools, but always refer to the engine service manual for proper tensioning procedures.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":44962699935830,"sku":"ZZ2Z01379","price":87.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_f08b8cc8-b625-425a-886c-103d4938aa1f.jpg?v=1781613279","url":"https:\/\/www.solidspare.com\/products\/belt-tensioner-3976832-3937556-for-cummins-4bt-3-9-6bt-5-9-6ct-c8-3l-6c-6ct-6cta","provider":"Solid Spare","version":"1.0","type":"link"}