3978022

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.

Replaces OEM Part #: 38504, 49501, 89478, 3904370, 3907469, 3908163, 3911315, 3912246, 3914086, 3918944, 3922900, 3933725, 3934817, 3934818, 3934831, 3936201, 3936202, 3936203, 3937553, 3973822, 3973823, 3978022, 3914088, 3912248, VKM910015, 3802287, 3917485, 3922000, 3933620, 3934813, 3937223, 3938022, J918944, 5333477

2 Year/200,000 Mile Warranty.