The Namura NA-50006 Piston Kit is a standard-size replacement piston assembly designed for select Polaris 90cc applications. With a 51.96 mm piston diameter, this kit provides a dependable replacement solution for engines requiring a standard-bore piston. It is manufactured by Namura and supplied under vendor part number NA-50006.
This piston kit fits 2001–2007 Polaris Sportsman 90 models, the 2007 Polaris Outlaw 90, and 2003–2004 Polaris Predator 90 models. Verify the engine application and required piston size before installation to ensure proper fitment. The kit is intended for use with compatible Namura components and is not designed to accept OEM piston rings.
Important fitment note: The Namura NA-50006 piston will not accept OEM rings, and the supplied rings will not work with an OEM piston. Use the correct matching piston and ring set together for proper installation and engine operation. Professional installation and inspection of cylinder condition, clearances, and related components are recommended before assembly.
Features:
- Standard-size replacement piston kit for compatible Polaris 90cc engines
- Piston diameter: 51.96 mm
- Brand: Namura
- Manufacturer part number: NA-50006
- Vendor part number: NA-50006
- Fits 2001–2007 Polaris Sportsman 90
- Fits 2007 Polaris Outlaw 90
- Fits 2003–2004 Polaris Predator 90
- Will not accept OEM piston rings
- Supplied rings are not compatible with an OEM piston
Fitment:
2001 Polaris Scrambler 90
2001 Polaris Sportsman 90
2002 Polaris Scrambler 90
2002 Polaris Sportsman 90
2003 Polaris Predator 90
2003 Polaris Sportsman 90
2004 Polaris Predator 90
2004 Polaris Sportsman 90
2005 Polaris Predator 90
2005 Polaris Sportsman 90
2006 Polaris Predator 90
2006 Polaris Sportsman 90
2007 Polaris Outlaw 90
2007 Polaris Sportsman 90