FITMENT: Direct-fit aftermarket replacement serpentine belt for Freightliner Cascadia 2020-2024 equipped with the Detroit DD15 engine. This belt is engineered specifically for DD15 applications and is not compatible with DD13, DD16, Cummins X15, ISX, or any other engine platform. Always verify your engine model before ordering. DDE (Detroit Diesel Engine) designation confirms exclusive DD15 fitment.
SPECIFICATIONS: 8PK2691 profile — 8 ribs, 2691mm (105.9 in) outer length, 28.35mm (1.116 in) rib width, standard Poly-V EPDM construction. Designed to handle the high-load serpentine drive demands of the Detroit DD15's accessory drive system
FUNCTION AND INSTALLATION: Drives the DD15 engine's primary accessory drive system, including the alternator, air conditioning compressor, and power steering pump where applicable. Direct-fit geometry matches factory routing and tensioner specifications, allowing straightforward drop-in installation without modification. Always inspect tensioner and idler pulleys for wear before installation.
BUILD QUALITY: Constructed from high-performance EPDM rubber compound for superior heat resistance, crack resistance, and extended service life under the extreme thermal and load cycling conditions typical of Class 8 long-haul diesel applications. Rib profile maintains positive grip on all drive pulleys to resist slipping, glazing, and premature wear across wide operating temperature ranges.