The Namura NA-50005 Piston Kit is a standard-size replacement piston assembly designed for select Polaris 500 ATV applications. With a 99.15 mm piston size, this kit supports reliable engine rebuilding and replacement needs for compatible Polaris Outlaw 500 and Polaris Predator 500 models. The kit is manufactured by Namura and supplied under vendor part number NA-50005.
This piston kit is designed for fitment on the 2006 and 2007 Polaris Outlaw 500, as well as the 2003 through 2007 Polaris Predator 500. Verify the model year and engine application before ordering to ensure proper compatibility. The piston kit will not accept OEM piston rings, and its rings are not compatible with the OEM piston. Use the corresponding Namura rings and piston together as intended.
Built for powersports engine service, the Namura NA-50005 provides a practical replacement option when restoring compression and renewing internal engine components. Professional installation and careful inspection of the cylinder, connecting rod, wrist pin, and related components are recommended during assembly. Always follow the applicable manufacturer service procedures for piston installation, ring orientation, clearances, and break-in.
Features:
- Size: 99.15 mm standard piston size
- Model: Standard replacement piston kit for compatible Polaris 500 engines
- Brand: Namura
- Manufacturer Part Number: NA-50005
- Vendor Part Number: NA-50005
- Fitment: 2006-2007 Polaris Outlaw 500
- Fitment: 2003-2007 Polaris Predator 500
- Compatibility: Will not accept OEM piston rings, and the included rings will not work on an OEM piston
Fitment:
2003 Polaris Predator 500
2004 Polaris Predator 500
2005 Polaris Predator 500
2006 Polaris Outlaw 500
2006 Polaris Predator 500
2007 Polaris Outlaw 500
2007 Polaris Predator 500