The Namura NX-10051 Flat-Top Piston Kit is designed to support reliable engine rebuilding and replacement applications for select Honda Z50R models. This standard-bore piston kit features a 39 mm piston diameter and a 10.0:1 compression ratio, making it a suitable replacement for maintaining original-style engine performance and fitment.
Each Namura piston kit includes an individually wrapped piston, a set of OEM-quality piston rings packaged separately, an OEM-quality wrist pin, and circlips. The components are supplied together to help simplify installation during engine service while supporting proper piston and ring replacement.
Fitment: This Namura NX-10051 kit fits 1982–1989 and 1991–1992 Honda Z50R models. Verify the model year and standard-bore application before installation to ensure compatibility with the engine and related components. The manufacturer part number is NX-10051, and the vendor part number is 184-10051.
Features:
- Standard-bore 39 mm flat-top piston
- 10.0:1 compression ratio
- Individually wrapped Namura piston
- OEM-quality piston ring set in a separate package
- OEM-quality wrist pin included
- Circlips included
- Fits 1982–1989 and 1991–1992 Honda Z50R models
- Manufacturer part number: NX-10051
- Vendor part number: 184-10051
Fitment:
1979 Honda Z50R
1980 Honda Z50R
1981 Honda Z50R
1982 Honda Z50R
1983 Honda Z50R
1984 Honda Z50R
1985 Honda Z50R
1986 Honda Z50R
1987 Honda Z50R
1988 Honda Z50R
1989 Honda Z50R
1990 Honda Z50R
1991 Honda Z50R
1992 Honda Z50R
1993 Honda Z50R
1994 Honda Z50R
1995 Honda Z50R
1996 Honda Z50R
1997 Honda Z50R
1998 Honda Z50R
1999 Honda Z50R
2000 Honda XR50R
2001 Honda XR50R
2002 Honda XR50R
2003 Honda XR50R
2004 Honda CRF50F
2005 Honda CRF50F
2006 Honda CRF50F
2007 Honda CRF50F
2008 Honda CRF50F
2009 Honda CRF50F
2011 Honda CRF50F
2012 Honda CRF50F
2013 Honda CRF50F
2014 Honda CRF50F
2015 Honda CRF50F
2016 Honda CRF50F