The NAMURA NA-50090 Piston Kit is designed for twin-cylinder Polaris RZR XP 900 engines requiring a standard-size replacement piston. This kit features a 92.95 mm piston diameter and an 11:1 compression ratio, providing a direct replacement solution for compatible applications. The kit is intended for use with the specified Polaris engine configurations and is manufactured by NAMURA for dependable fit and performance.
Fitment includes the 2011–2013 Polaris RZR XP 900, 2011–2012 Polaris RZR XP 900 LE, 2013 Polaris RZR XP 900 EFI, 2013 Polaris RZR XP 900 EPS, 2013 Polaris RZR XP 4 900, 2013 Polaris RZR XP 4 900 EPS, and 2013 Polaris RZR XP 4 900 Jagged X. Verify the engine configuration, piston size, and compression requirements before installation to ensure compatibility.
The NAMURA NA-50090 is not compatible with OEM piston rings, and the included or specified rings will not work on an OEM piston. Use the correct NAMURA components as a complete matched piston and ring combination. This product is supplied as a piston kit for replacement or engine rebuilding applications and should be installed according to the manufacturer’s service procedures.
Features:
- Brand: NAMURA
- Manufacturer Part Number: NA-50090
- Vendor Part Number: NA-50090
- Product Type: Twin-cylinder piston kit
- Piston Size: 92.95 mm standard size
- Compression Ratio: 11:1
- Application: Polaris RZR XP 900 engine platforms
- Fitment: 2011–2013 Polaris RZR XP 900; 2011–2012 Polaris RZR XP 900 LE; 2013 Polaris RZR XP 900 EFI and EPS; 2013 Polaris RZR XP 4 900, XP 4 900 EPS, and XP 4 900 Jagged X
- Compatibility: Does not accept OEM rings, and the rings will not work on an OEM piston
Fitment:
2011 Polaris RZR XP 900
2011 Polaris RZR XP 900 LE
2012 Polaris RZR XP 4 900
2012 Polaris RZR XP 900
2012 Polaris RZR XP 900 LE
2013 Polaris RZR XP 4 900
2013 Polaris RZR XP 4 900 EPS
2013 Polaris RZR XP 4 900 Jagged X
2013 Polaris RZR XP 900
2013 Polaris RZR XP 900 EFI
2013 Polaris RZR XP 900 EPS