Polyforce Belt Tensioner

#KMR689480

Product Overview

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.

Features & Benefits

No Springs Attached - Conventional belt tensioners use springs to hold their position and tension. However, springs can only flex so many times before they fail. PolyForce™ Belt Tensioners replace this spring with a longer lasting, new and unique Polymer Torsion Core. A compressed silicone replaces the spring, thereby eliminating the primary cause of failure.

Improved Bearings - The other common failure point in a belt tensioner is the bearing. The pulley bearing absorbs a huge amount of vibration and can often fail too soon. PolyForce™ Belt Tensioners have dramatically improved pulley bearings to give them extended life. Our bearing is designed specifically for pulley applications with Outer Ring Rotation and Anti-Vibration Grease (won’t separate).

No Spring = Less Heat - To demonstrate the difference between tensioners, we ran a PolyForce belt tensioner and a competitor’s belt tensioner along an oblong pulley, which causes it to flex back and forth. After 20 minutes the competitor’s belt tensioner was 62.5% hotter than the PolyForce belt tensioner. Less heat leads directly to longer lasting components and assists in achieving lower under-hood temperatures.

2 Year/200,000 Mile Warranty

Interchanges & Equivalent parts:

100-7774, 126-0153, 133-3529, 133-3543, 133-3545, 134-0642, 135-2142, 148-1974, 190-0649, 38506, 4071248, 49506, 689480, 89480, D1186-2393, VKM910001, 126-0153, 148-1974, 89480, 100-7774, 133-3545, 133-3543, 134-0642, 133-3529, D1186-2393, 49506, 190-0649, 135-2142, 4071248, 38506, VKM910001, 689480