DAY89448

Name: FleetoneWD
Address: 1000 Northbrook Drive, Suite 100, Trevose, 19053, PA
Telephone: 2157855175

Belt Tensioner (ISX15/X15 ACC)

4.5 Ratings

Feature	Specification
Type	Gold Label® heavy‑duty automatic accessory belt tensioner
Product Application	Cummins ISX / ISX15 / X15 accessory drive (A/C, alternator, P/S, etc.) on Class 8 trucks
Direction of Rotation	Clockwise
Belt Type	Serpentine / multi‑rib
Number of Pulleys	1
Pulley Diameter	74 mm (≈2.91 in)
Pulley Width	38.3 mm
Pulley Face	Flat (for multi‑rib belt)
Body Material	Cast aluminum housing and arm
Spring Design	Patented flat‑spring with PTFE damping for reduced tension fluctuation and noise

Maintains constant belt tension on the ISX15/X15 accessory drive to protect alternator, A/C compressor, power steering pump and other driven components from slip and shock loads.
Flat‑spring design minimizes tension variation over its operating range, improving belt life and reducing bearing load compared with conventional round‑spring tensioners.
Integrated flat 74 mm pulley uses high‑capacity, permanently lubricated bearings for durability under continuous high‑load operation.

Fits ISX15 / X15 Accessory Drive

Cummins ISX / ISX15 / X15 accessory belt circuit in Kenworth, Peterbilt, Freightliner, International, Western Star, Volvo, Mack and others using this style tensioner.
Typical chassis include Kenworth T680/T800/T880/W900, Peterbilt 365/367/379/389/520/567/579, Freightliner Cascadia/Coronado/114SD/122SD, International ProStar/LoneStar/LT, Volvo VNL/VNM/VT, Western Star 4900/6900XD, Mack CXU/CL and similar model years listed in the application guide.

Manufacturer / Brand	Part Number(s)	Notes
Cummins	2891940, 3104149, 3682255, 3682683, 3690067

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