The Namura NX-30050-4 piston kit is designed for select Kawasaki KDX 50 and Suzuki JR50 applications requiring a 41.96 mm oversize piston. This replacement piston kit supports engine rebuilding and cylinder service when the original cylinder has been bored to accommodate the oversize specification. It is manufactured by Namura and identified by manufacturer part number NX-30050-4 and vendor part number NX-30050-4.
Fitment: Fits 2003–2006 Kawasaki KDX 50 and 1978–1983 Suzuki JR50 models. Verify the model year, cylinder bore specification, and required piston size before installation to ensure proper application. This kit is intended for compatible engine configurations and should be installed according to the vehicle manufacturer’s service procedures.
Important compatibility note: This Namura piston kit will not accept OEM piston rings, and the supplied rings are not compatible with an OEM piston. Use the correct matching piston and ring set together. Confirm ring, cylinder, and piston compatibility during an engine rebuild to help ensure proper fit and dependable operation.
Features:
- Size: 41.96 mm oversize piston specification
- Model: Piston kit for compatible Kawasaki KDX 50 and Suzuki JR50 applications
- Brand: Namura
- Manufacturer part number: NX-30050-4
- Vendor part number: NX-30050-4
- Fitment: 2003–2006 Kawasaki KDX 50 and 1978–1983 Suzuki JR50
- Compatibility: Will not accept OEM rings, and the included rings will not work with an OEM piston
Fitment:
1978 Suzuki Jr50
1979 Suzuki Jr50
1980 Suzuki Jr50
1981 Suzuki Jr50
1982 Suzuki Jr50
1983 Suzuki Jr50
1984 Suzuki Jr50
1985 Suzuki Jr50
1986 Suzuki Jr50
1987 Suzuki Jr50
1988 Suzuki Jr50
1989 Suzuki Jr50
1990 Suzuki Jr50
1991 Suzuki Jr50
1992 Suzuki Jr50
1993 Suzuki Jr50
1994 Suzuki Jr50
1995 Suzuki Jr50
1996 Suzuki Jr50
1997 Suzuki Jr50
1998 Suzuki Jr50
1999 Suzuki Jr50
2000 Suzuki Jr50
2001 Suzuki Jr50
2002 Suzuki Jr50
2003 Kawasaki KDX 50
2003 Suzuki Jr50
2004 Kawasaki KDX 50
2004 Suzuki Jr50
2005 Kawasaki KDX 50
2005 Suzuki Jr50
2006 Kawasaki KDX 50
2006 Suzuki Jr50