The Namura NA-50093-2 Piston Kit is designed for select Polaris 1000 twin-cylinder ATV applications requiring a 90.92 mm piston with a 11:1 compression ratio. This kit is intended as a replacement piston assembly for compatible Polaris Sportsman, Sportsman Touring, and Scrambler XP 1000 models, helping restore proper engine performance during a rebuild or top-end service.
Fitment: Fits 2016–2017 Polaris Sportsman XP 1000; 2015–2017 Polaris Sportsman Touring XP 1000; 2014–2017 Polaris Scrambler XP 1000 EPS; and 2018 Polaris Sportsman Touring XP 1000. Verify the model year, engine configuration, bore requirement, and compression specifications before installation.
Important compatibility note: The Namura NA-50093-2 piston kit will not accept OEM piston rings, and its rings are not compatible with the OEM piston. Use the ring set specified for this Namura piston kit. Professional installation and careful inspection of the cylinder, wrist pin, clips, and related components are recommended to ensure proper fit and reliable operation.
Manufactured by Namura and identified by manufacturer part number NA-50093-2, this piston kit provides a purpose-built replacement solution for compatible Polaris twin-cylinder engines. Always follow the applicable service manual procedures for clearance measurements, ring installation, break-in, and final assembly.
Features:
- Brand: Namura
- Manufacturer part number: NA-50093-2
- Vendor part number: NA-50093-2
- Application: Polaris twin-cylinder 1000 ATV engines
- Piston size: 90.92 mm, equivalent to approximately 3.579 inches
- Compression ratio: 11:1
- Fitment: 2014–2017 Polaris Scrambler XP 1000 EPS
- Fitment: 2015–2017 Polaris Sportsman Touring XP 1000
- Fitment: 2016–2017 Polaris Sportsman XP 1000
- Fitment: 2018 Polaris Sportsman Touring XP 1000
- Compatibility: Does not accept OEM rings, and the included rings will not work with an OEM piston
Fitment:
2014 Polaris Scrambler XP 1000 EPS
2015 Polaris Scrambler XP 1000 EPS
2015 Polaris Sportsman Touring XP 1000
2016 Polaris Scrambler XP 1000 EPS
2016 Polaris Sportsman Touring XP 1000
2016 Polaris Sportsman XP 1000
2017 Polaris Scrambler XP 1000 EPS
2017 Polaris Sportsman Touring XP 1000
2017 Polaris Sportsman XP 1000
2018 Polaris Scrambler XP 1000 EPS
2018 Polaris Sportsman Touring XP 1000
2018 Polaris Sportsman XP 1000
2019 Polaris Sportsman Touring XP 1000
2019 Polaris Sportsman XP 1000