Description
Crankshaft bearings are critical to engine longevity and performance in 2-stroke ATVs—worn or degraded bearings increase friction, reduce power transfer, and accelerate internal wear. The EPI WE524580 is engineered to maintain precise clearances and withstand the high RPMs and thermal demands of Polaris 2-stroke engines, giving you reliable starts and consistent power delivery whether you’re maintaining stock performance or running hard in the field.
This is a direct replacement bearing designed for bolt-on installation across multiple Polaris ATV models, requiring no fabrication or modification to your engine assembly.
- Fits: Polaris 2-stroke ATVs
- MPN: WE524580
- Installation: Bolt-on
- Material: Precision roller bearing
- High-temperature rated
- Factory-tested reliability
- Reduces friction loss
- Maintains engine clearances









