Restore reliable top-end performance with the Namura NA-50015K Top End Kit for select Polaris Outlaw 50 models. Designed for a 38.98 mm standard-bore application and 11:1 compression, this kit provides the essential components needed for a complete piston replacement, including the piston, piston rings, wrist pin, retaining clips, top-end bearing, and gasket kit.
The piston uses Namura’s hypereutectic casting process to provide increased silicon content, reduced expansion, improved wear resistance, and dependable performance at elevated cylinder temperatures. Its MOS2, or Teflon/molybdenum, coated skirts use a rolled-on application process designed to create a stronger bond than conventional spray-on coatings. This coating helps reduce friction, improve heat transfer, and minimize the risk of cold seizures during operation.
Additional piston features include machined smooth heads that reflect combustion heat and help reduce carbon buildup, along with anodized domes that improve heat resistance and durability. The Namura NA-50015K kit is engineered for fitment on 2008–2017 Polaris Outlaw 50 vehicles, making it a practical replacement solution for maintenance, repair, or top-end rebuilding. Always verify the model year and engine specifications before installation.
Manufacturer: Namura. Vendor part number: NA-50015K. This kit is supplied as a complete top-end assembly package to simplify installation and help return the engine to dependable service.
Features:
- Complete Top End Kit: Includes piston, rings, wrist pin, retaining clips, top-end bearing, and gasket kit.
- Standard Bore Fitment: Designed for a 38.98 mm standard-bore application with 11:1 compression.
- MOS2-Coated Skirts: Teflon and molybdenum coating helps reduce friction, improve heat transfer, and minimize cold-seizure risk.
- Machined Smooth Head: Reflects combustion heat and helps reduce carbon buildup on the piston crown.
- Anodized Dome: Improves heat resistance and piston durability.
- Hypereutectic Construction: Higher silicon content helps reduce expansion, resist wear, and withstand elevated cylinder temperatures.
- Vehicle Fitment: Fits 2008 through 2017 Polaris Outlaw 50 models.
Fitment:
2007 Polaris Predator 50
2008 Polaris Outlaw 50
2009 Polaris Outlaw 50
2010 Polaris Outlaw 50
2011 Polaris Outlaw 50
2012 Polaris Outlaw 50
2013 Polaris Outlaw 50
2014 Polaris Outlaw 50
2015 Polaris Outlaw 50
2016 Polaris Outlaw 50
2017 Polaris Outlaw 50
2018 Polaris Outlaw 50