The Namura NA-10090 Piston Kit is a standard-bore replacement piston assembly designed for select Honda TRX90 models. This kit is intended for use with the original engine configuration and supports dependable repair or rebuild work when replacing a worn or damaged piston. The piston kit is sized for a standard bore and is engineered for fitment in the applications listed below.
Important compatibility note: This Namura piston kit will not accept OEM piston rings, and the included or compatible rings will not work with an OEM piston. Use the correct Namura replacement rings with this piston kit to ensure proper assembly and operation. Always verify the piston, ring, and engine specifications before installation.
Fitment includes the 2009 and 2012–2017 Honda TRX90X [SRA], the 2007–2008 Honda TRX90EX Sportrax, and the 1993 Honda TRX90 Sportrax. Manufactured by Namura and identified by manufacturer and vendor part number NA-10090, this piston kit provides a direct application-specific replacement for compatible Honda ATV engines. Professional installation and careful inspection of the cylinder, wrist pin, circlips, and related components are recommended during assembly.
Features:
- Standard Bore: Replacement piston kit for compatible Honda TRX90 engine applications
- Application Fitment: Fits select 1993 Honda TRX90 Sportrax, 2007–2008 Honda TRX90EX Sportrax, and 2009 and 2012–2017 Honda TRX90X [SRA] models
- Brand: Namura
- Manufacturer and Vendor Part Number: NA-10090
- Ring Compatibility: Will not accept OEM rings, and the rings are not compatible with an OEM piston
- Replacement Use: Suitable for engine repair, maintenance, and rebuild applications
Fitment:
1993 Honda TRX90 Sportrax
1994 Honda TRX90 Sportrax
1995 Honda TRX90 Sportrax
1996 Honda TRX90 Sportrax
1997 Honda TRX90 Sportrax
1998 Honda TRX90 Sportrax
1999 Honda TRX90 Sportrax
2000 Honda TRX90 Sportrax
2001 Honda TRX90 Sportrax
2002 Honda TRX90 Sportrax
2003 Honda TRX90 Sportrax
2004 Honda TRX90 Sportrax
2005 Honda TRX90 Sportrax
2006 Honda TRX90 Sportrax
2007 Honda TRX90EX Sportrax
2008 Honda TRX90EX Sportrax
2009 Honda TRX90X [SRA]
2010 Honda TRX90X [SRA]
2011 Honda TRX90X [SRA]
2012 Honda TRX90X [SRA]
2013 Honda TRX90X [SRA]
2014 Honda TRX90X [SRA]
2015 Honda TRX90X [SRA]
2016 Honda TRX90X [SRA]
2017 Honda TRX90X [SRA]
2018 Honda TRX90X [SRA]
2019 Honda TRX90X [SRA]
2020 Honda TRX90X [SRA]
2021 Honda TRX90X [SRA]
2022 Honda TRX90X [SRA]
2023 Honda TRX90X [SRA]