{"product_id":"gates-k100643hd-detroit-dd15-fan-belt","title":"Gates K100643HD | Detroit DD15 Fan Belt","description":"\u003ch2\u003eGates K100643HD Detroit DD15 Fan Belt\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eGates K100643HD\u003c\/strong\u003e is a FleetRunner Heavy-Duty Micro-V serpentine belt designed for the \u003cstrong\u003eDetroit Diesel DD15 fan drive\u003c\/strong\u003e. Built for demanding heavy-duty truck applications, this 10-rib belt provides the flexibility, strength, and durability needed for reliable operation in high-temperature engine environments.\u003c\/p\u003e\n\n\u003cp\u003eThe K100643HD is specifically cataloged for \u003cstrong\u003eDetroit DD15 diesel engines and fan applications\u003c\/strong\u003e, including Freightliner Cascadia and other compatible heavy-duty truck configurations.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Gates\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e K100643HD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Line:\u003c\/strong\u003e FleetRunner Heavy-Duty Micro-V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Detroit Diesel DD15 Fan Drive\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBelt Type:\u003c\/strong\u003e Heavy-Duty V-Ribbed \/ Serpentine Belt\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRib Count:\u003c\/strong\u003e 10\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSection:\u003c\/strong\u003e K\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEffective Length:\u003c\/strong\u003e 64.44 in. \/ 1637 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Circumference:\u003c\/strong\u003e 65 in. \/ 1651 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTop Width:\u003c\/strong\u003e 1.367 in. \/ 35 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e EPDM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCord Material:\u003c\/strong\u003e Polyester\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e OE Improved\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eDetroit DD15 Fan Belt Application\u003c\/h2\u003e\n\n\u003cp\u003eThe Gates K100643HD is cataloged as the \u003cstrong\u003efan belt for Detroit Diesel DD15 engines\u003c\/strong\u003e. Gates heavy-duty application catalogs identify the K100643HD for DD15-powered Freightliner Cascadia applications, with catalog coverage beginning in 2012 and extending through 2021 for the listed Cascadia application.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The DD15 accessory drive uses different belts for different components. The K100643HD is the \u003cstrong\u003efan belt\u003c\/strong\u003e and should not be confused with the separate belt used for the alternator, power steering, A\/C, and air compressor.\u003c\/p\u003e\n\n\u003ch2\u003eFleetRunner Heavy-Duty Construction\u003c\/h2\u003e\n\n\u003cp\u003eGates FleetRunner Micro-V belts are engineered for demanding commercial vehicle applications. The K100643HD uses durable \u003cstrong\u003eEPDM construction\u003c\/strong\u003e designed to withstand prolonged exposure to heat, oil, coolant, ozone, and other conditions commonly found in heavy-duty engine compartments.\u003c\/p\u003e\n\n\u003cp\u003eThe heavy-duty construction provides flexibility, stability, load-carrying capability, and resistance to cracking and wear. Gates also recommends inspecting the belt tensioner when replacing a serpentine belt to help prevent premature belt failure.\u003c\/p\u003e\n\n\u003ch2\u003eOEM \u0026amp; Cross Reference Numbers\u003c\/h2\u003e\n\n\u003cp\u003eCommon cross-reference numbers for the Gates K100643HD include \u003cstrong\u003eFreightliner 0131893635\u003c\/strong\u003e, \u003cstrong\u003eFreightliner 0132731635\u003c\/strong\u003e, \u003cstrong\u003eFreightliner 01-35625-635\u003c\/strong\u003e, \u003cstrong\u003eContinental 4100642FX\u003c\/strong\u003e, \u003cstrong\u003eContinental 4100644X\u003c\/strong\u003e, \u003cstrong\u003eDayco 5100640\u003c\/strong\u003e, \u003cstrong\u003eGoodyear 4100642 \/ 4100642F\u003c\/strong\u003e, and \u003cstrong\u003eNAPA 25-100643HD\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eMercedes-Benz cross-reference numbers associated with this belt include \u003cstrong\u003eA4719933496\u003c\/strong\u003e, \u003cstrong\u003eA4729930596\u003c\/strong\u003e, \u003cstrong\u003eA4729931396\u003c\/strong\u003e, \u003cstrong\u003eA4729931996\u003c\/strong\u003e, and \u003cstrong\u003eA4729932696\u003c\/strong\u003e. Verify the specific OEM number against the truck's VIN and belt-drive configuration before ordering.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose Gates K100643HD?\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDesigned for Detroit Diesel DD15 fan applications\u003c\/li\u003e\n  \u003cli\u003eHeavy-duty FleetRunner Micro-V construction\u003c\/li\u003e\n  \u003cli\u003e10-rib K-section belt\u003c\/li\u003e\n  \u003cli\u003eEPDM construction for demanding engine environments\u003c\/li\u003e\n  \u003cli\u003e64.44-inch effective length\u003c\/li\u003e\n  \u003cli\u003eDesigned for long service life and reduced downtime\u003c\/li\u003e\n  \u003cli\u003eExcellent replacement option for heavy-duty fleet applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eFitment Note:\u003c\/strong\u003e Verify the truck's engine model, fan-drive configuration, existing belt dimensions, and OEM belt number before ordering. The DD15 uses different accessory-drive belts depending on the application.\u003c\/p\u003e","brand":"Gates","offers":[{"title":"Default Title","offer_id":67496127987757,"sku":null,"price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/4526\/0845\/files\/K100643HD-1_ANG_A.jpg?v=1788756562","url":"https:\/\/performancedieselgroup.com\/products\/gates-k100643hd-detroit-dd15-fan-belt","provider":"Performance Diesel Group","version":"1.0","type":"link"}