{"product_id":"dayco-hd-automatic-belt-tensioner-74-mm-pulley-x-57-mm-wide-89440-38587-38609-day89440","title":"Dayco HD Automatic Belt Tensioner - 74 mm Pulley x 57 mm Wide - 89440 38587 38609 DAY89440","description":"\u003cp\u003eKeep the belt drive tight and quiet with this \u003cstrong\u003eDayco Heavy-Duty Automatic Belt Tensioner\u003c\/strong\u003e distributed by FleetPro Parts \u0026amp; Tires. Dayco supplies this tensioner at the original-equipment level, so the pulley size and the tension it holds are what the belt drive was built around. A worn tensioner tells on itself long before it strands you: the arm chatters, the pulley bearing turns noisy, and the belt squeals on every start-up — and a belt that finally lets go leaves you sitting on the shoulder. We stock these heavily right here in our Hanover Park, Illinois warehouse to ensure lightning-fast shipping for fleets, diesel repair shops, and owner-operators nationwide.\u003c\/p\u003e\n\n\u003ch2\u003eQuiet, Correct Belt Tension: The Dayco HD Tensioner Advantage\u003c\/h2\u003e\n\n\u003cp\u003eThis \u003cstrong\u003eheavy-duty automatic belt tensioner\u003c\/strong\u003e (FleetPro part # DAY89440, Dayco \u003cstrong\u003e89440\u003c\/strong\u003e) runs a \u003cstrong\u003e74 mm pulley diameter\u003c\/strong\u003e with a \u003cstrong\u003e57 mm wide\u003c\/strong\u003e pulley face — the surface the belt actually rides on, so pulley width and belt width have to match. The automatic arm takes up belt stretch on its own, which is what keeps tension correct between services instead of letting it drift off as the belt wears in. The complete unit weighs \u003cstrong\u003e5.55 lbs\u003c\/strong\u003e, ships parcel friendly in an 8.07 x 4.47 x 4.22 in carton, and goes on as a new part backed by a \u003cstrong\u003e1-Year FleetPro Warranty\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eAt FleetPro Parts \u0026amp; Tires, we know a belt job is only finished when the tensioner goes on with it. This Dayco unit is a direct replacement for highly searched industry numbers including \u003cstrong\u003eDayco 89440\u003c\/strong\u003e, Gates 38587 and 38609, Caterpillar 236-2301, and Cummins 3682946. Put a fresh belt on at the same time — a new belt riding a worn tensioner will not stay tight for long.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eVehicle Fitment \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis Dayco belt tensioner is intended for the following commercial applications:\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMake\/Model:\u003c\/strong\u003e Autocar, Freightliner, International, Kenworth, Mack, Monaco Coach, Peterbilt, Sterling, Volvo and Western Star\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eComponent Group:\u003c\/strong\u003e Engine \/ Belts \u0026amp; Tensioners\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Maintains correct belt tension\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eReplace When:\u003c\/strong\u003e The arm chatters, the pulley bearing is noisy, or the belt squeals on start-up\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eDirect Replacement \u0026amp; Cross-Reference Numbers:\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eThis Dayco belt tensioner serves as a direct replacement for the following part numbers:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDayco Interchange:\u003c\/strong\u003e 89440\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGates Interchange:\u003c\/strong\u003e 38587, 38609\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCaterpillar Interchange:\u003c\/strong\u003e 236-2301, 2362301, 3223167, 3368955, 3524681\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCummins Interchange:\u003c\/strong\u003e 2871292, 2871293, 3682946, 3683289, 3684428, 3691282, 3691283, 4299051, 4299052\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIHC Interchange:\u003c\/strong\u003e 1883020C2, 1883020C3\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFleetPro Part #:\u003c\/strong\u003e DAY89440\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eComponent Type:\u003c\/strong\u003e Heavy-Duty Automatic Belt Tensioner\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePulley Diameter:\u003c\/strong\u003e 74 mm\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePulley Width:\u003c\/strong\u003e 57 mm\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-Year FleetPro Warranty\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 5.55 lbs\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePackage Dims:\u003c\/strong\u003e 8.07 x 4.47 x 4.22 in\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eShipping:\u003c\/strong\u003e Parcel Friendly\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 036687422132\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProduct Level:\u003c\/strong\u003e OE (Original Equipment)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Dayco (Distributed by FleetPro Parts \u0026amp; Tires)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dayco","offers":[{"title":"Default Title","offer_id":43119464579143,"sku":"DAY89440","price":140.59,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/8035\/2583\/files\/image_1920_d417c298-db0e-43ce-b617-08c96918a275.jpg?v=1787351563","url":"https:\/\/fleetpropt.com\/products\/dayco-hd-automatic-belt-tensioner-74-mm-pulley-x-57-mm-wide-89440-38587-38609-day89440","provider":"FLEETPRO PARTS \u0026 TIRES","version":"1.0","type":"link"}