{"product_id":"alliance-belt-tensioner-detroit-dd13-dd15-dd16-serpentine-gates-38667-detroit-a4722000170-gt38667","title":"Alliance Belt Tensioner - Detroit DD13 \/ DD15 \/ DD16 Serpentine - Gates 38667 Detroit A4722000170 GT38667","description":"\u003cp\u003ePut constant, correct tension back on the serpentine drive with this \u003cstrong\u003eAlliance Automatic Belt Tensioner\u003c\/strong\u003e distributed by FleetPro Parts \u0026amp; Tires. It is the Freightliner aftermarket accessory drive belt tensioner for \u003cstrong\u003eDetroit DD13 and DD15\u003c\/strong\u003e engines, equivalent to the Gates FleetRunner heavy-duty assembly, and it applies constant spring force to the serpentine belt so the alternator, water pump and fan clutch stay driven without slip. Replace it when you hear belt squeal or chirp, see belt fluttering or rapid edge wear, or find a seized, wobbling or grease-leaking pulley, all signs the spring or the bearing has worn out. 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\u003eConstant Spring Force: The Alliance DD-Series Tensioner Advantage\u003c\/h2\u003e\n\n\u003cp\u003eThis is a full \u003cstrong\u003eautomatic spring-loaded belt tensioner assembly\u003c\/strong\u003e, not a pulley kit. The \u003cstrong\u003emachined steel pulley\u003c\/strong\u003e carries a \u003cstrong\u003eV-ribbed contact surface\u003c\/strong\u003e and measures \u003cstrong\u003e75 mm OD\u003c\/strong\u003e over a \u003cstrong\u003e30 mm bearing bore\u003c\/strong\u003e, riding on a \u003cstrong\u003edouble-row sealed bearing\u003c\/strong\u003e sized for the loads a heavy accessory drive puts through a tensioner arm. An \u003cstrong\u003einternal asymmetric damping mechanism\u003c\/strong\u003e controls how fast the arm can move, which is what keeps the belt from oscillating when the engine changes load.\u003c\/p\u003e\n\n\u003cp\u003eAt roughly \u003cstrong\u003e11 lb\u003c\/strong\u003e this is a substantial piece of hardware, and it mounts on the front accessory drive to control tension on the main serpentine belt that turns the alternator, water pump and cooling fan. At FleetPro Parts \u0026amp; Tires, we know a DD-series belt job is one you want to do once. This tensioner is a direct replacement for highly searched industry numbers including \u003cstrong\u003eGates 38667\u003c\/strong\u003e, \u003cstrong\u003eDetroit A4722000170\u003c\/strong\u003e, A4722000570, A4722001670, Kit Masters 638667 and Alliance ABPN20638667.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eVehicle Fitment \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis heavy-duty belt tensioner is intended for the following commercial applications:\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e Detroit Diesel DD13, DD15 and DD16\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFreightliner:\u003c\/strong\u003e Cascadia P3 2008-2017 and P4 2018-2024\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAlso Fits:\u003c\/strong\u003e Western Star and other Daimler trucks running these engines\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePosition:\u003c\/strong\u003e Front accessory drive, controlling the main serpentine belt\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDrives:\u003c\/strong\u003e Alternator, water pump and cooling fan\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 Alliance 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\u003eGates Interchange:\u003c\/strong\u003e 38667\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDetroit Interchange:\u003c\/strong\u003e A4722000170, A4722000570, A4722001670\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eKit Masters Interchange:\u003c\/strong\u003e 638667\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAlliance Interchange:\u003c\/strong\u003e ABPN20638667\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFleetPro Part #:\u003c\/strong\u003e GT38667\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 Automatic Spring-Loaded Belt Tensioner Assembly\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePulley:\u003c\/strong\u003e Machined steel, V-ribbed contact surface\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePulley OD:\u003c\/strong\u003e 75 mm\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBearing Bore ID:\u003c\/strong\u003e 30 mm\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBearing:\u003c\/strong\u003e Double-row, sealed\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDamping:\u003c\/strong\u003e Internal asymmetric damping mechanism\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApprox. Weight:\u003c\/strong\u003e 11 lb\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\u003eBrand:\u003c\/strong\u003e Freightliner (Distributed by FleetPro Parts \u0026amp; Tires)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Freightliner","offers":[{"title":"Default Title","offer_id":43036193488967,"sku":"GT38667","price":268.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/8035\/2583\/files\/image_1920_3f8e62e0-19e5-4213-a7c6-c25e4ab26ae6.webp?v=1787697280","url":"https:\/\/fleetpropt.com\/products\/alliance-belt-tensioner-detroit-dd13-dd15-dd16-serpentine-gates-38667-detroit-a4722000170-gt38667","provider":"FLEETPRO PARTS \u0026 TIRES","version":"1.0","type":"link"}