Full B-Series Compatibility: Fits the entire Cummins B-Series engine family, including 5.9L 6BT and 3.9L 4BT applications.
Wide Vehicle Range: Essential replacement for 1989–2002 Dodge Ram 2500/3500 trucks, covering both the 12-Valve and 24-Valve models.
Automatic Tensioning: Designed as an automatic tensioner to maintain constant pressure on the serpentine belt, preventing slippage, noise, and accessory failure.
Cross-Reference OEM P/N: Directly replaces multiple OEM numbers including 3922900, 3914086, J936203, J918944, J934817.
Heavy-Duty Industrial Fit: Also fits a wide range of industrial and heavy-duty equipment, including various Case IH Tractor models and the large-bore NT855 engine.
Related parts: Camshaft Bearing Bushing 3940059 4983253 for Cummins 4BT 6BT 3.9L 5.9L 6.7L, Camshaft Bushing 3901306 for Cummins 4BT 6BT 3.9L 5.9L, 1989-1997 Dodge, 5.9L Cummins Piston Ring Set 6BT 4BT 12V 3928673 STD 1994-1998 Dodge 2500 3500.




































