Kit Masters (3934819) PolyForce Belt Tensioner, Cummins ISB

PolyForce™ Belt Tensioners by Kit Masters replace the traditional spring with a longer-lasting, Polymer Torsion Core.
They also feature upgraded pulley bearings to drastically extend the life of the belt tensioner.
*Mounting hardware not included
2 Year/200,000 Mile Warranty

Cross References: 49524, 38525, 38527, 49522, 89497, 89467, VKM910525, VKM910527, 3937555, 3934819