The NAMURA NA-50002 Two-Stroke Piston Kit is designed for select Polaris 400L applications requiring a standard-size 82.94 mm piston with an 11:1 compression ratio. This piston kit is manufactured for dependable fit and performance in compatible Polaris Sport, Sportsman, Xpress, and 400L 2x4 models.
Fitment includes the 1994–1999 Polaris Sport 400L, 1997 Polaris Sportsman 400L 4x4, 1996–1997 Polaris Xpress 400L, and 1994 Polaris 400L 2x4. Verify the exact year, model, engine specifications, and existing piston size before ordering to ensure proper compatibility. The NAMURA manufacturer part number and vendor part number are both NA-50002.
This piston kit is intended for applications using NAMURA components and will not accept OEM rings. The included rings are not compatible with an OEM piston, so the piston and ring combination should be installed together as specified. Professional installation and careful inspection of the cylinder, clearances, wrist pin, circlips, and related engine components are recommended before assembly.
Features:
- Size: Standard 82.94 mm piston size
- Model: Two-stroke piston kit with an 11:1 compression ratio
- Brand: NAMURA
- Manufacturer Part Number: NA-50002
- Vendor Part Number: NA-50002
- Fitment: 1994–1999 Polaris Sport 400L
- Fitment: 1997 Polaris Sportsman 400L 4x4
- Fitment: 1996–1997 Polaris Xpress 400L
- Fitment: 1994 Polaris 400L 2x4
- Compatibility: Will not accept OEM rings, and the included rings will not work with an OEM piston
Fitment:
1994 Polaris 400L 2X4
1994 Polaris 400L 4X4
1994 Polaris Sport 400L
1995 Polaris 400L 2X4
1995 Polaris Scrambler 400 4X4
1995 Polaris Sport 400L
1995 Polaris Xplorer 400 4X4
1996 Polaris Scrambler 400 4X4
1996 Polaris Sport 400L
1996 Polaris Xplorer 400 4X4
1996 Polaris Xpress 400L
1997 Polaris Scrambler 400 4X4
1997 Polaris Sport 400L
1997 Polaris Sportsman 400L 4x4
1997 Polaris Xplorer 400 4X4
1997 Polaris Xpress 400L
1998 Polaris Scrambler 400 4X4
1998 Polaris Sport 400L
1998 Polaris Xplorer 400 4X4
1999 Polaris Scrambler 400 2X4
1999 Polaris Scrambler 400 4X4
1999 Polaris Sport 400L
1999 Polaris Xplorer 400 4X4
2000 Polaris Scrambler 400 2X4
2000 Polaris Scrambler 400 4X4
2000 Polaris Xplorer 400 4X4
2001 Polaris Scrambler 400 2X4
2001 Polaris Scrambler 400 4X4
2001 Polaris Xplorer 400 4X4
2002 Polaris Scrambler 400 2X4
2002 Polaris Scrambler 400 4X4
2002 Polaris Xplorer 400L
2003 Polaris Trail Blazer 400