Description
A worn or damaged piston directly limits your Outlaw 90’s power delivery and engine reliability. The Wiseco Piston Kit restores full combustion efficiency and durability with precision-engineered components built to withstand both trail riding and competitive use. This is a critical wear item that demands OEM-quality engineering—which is exactly what you get here.
- Vehicle: 2007-2014 Polaris Outlaw 90
- Bore Size: 49mm
- Compression Ratio: 10.5:1
- MPN: 40122M04900
- Precision-engineered fitment
- Premium material construction
- Optimized power delivery
- Improved fuel efficiency
- Reduced emissions output
- Bolt-on installation compatible
- Gasket kit sold separately
- Recreational and competitive rated






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