Restore top-end performance with the NAMURA NA-10002-6K Top End Kit, designed for Honda TRX300EX Sportrax models from 1993 through 2002. This complete kit includes a piston, piston rings, wrist pin, retaining clips, top-end bearing, and gasket kit for a convenient engine rebuild solution. The 75.45 mm piston size and 11:1 compression ratio are engineered for compatible applications requiring a 1.50 mm oversize configuration.
The NAMURA piston features MOS2, or Teflon and molybdenum, coated skirts applied through a rolled-on process that creates a durable bond. This coating helps reduce friction, improve heat transfer, and minimize the risk of cold seizures. Machined smooth heads help reflect combustion heat and reduce carbon buildup, supporting piston protection and consistent engine operation.
Anodized domes improve heat resistance and durability, while the hypereutectic casting process provides increased silicon content for reduced expansion, improved wear resistance, and reliable performance at higher cylinder temperatures. The included gasket kit and supporting components help simplify installation when servicing the top end.
Fitment: Fits 1993-2002 Honda TRX300EX Sportrax models. Verify the existing bore, compression requirements, and engine specifications before installation to confirm compatibility. Manufactured by NAMURA and identified by manufacturer and vendor part number NA-10002-6K.
Features:
- Complete top-end kit includes piston, rings, wrist pin, retaining clips, top-end bearing, and gasket kit
- 75.45 mm piston size with an 11:1 compression ratio and 1.50 mm oversize configuration
- MOS2 Teflon and molybdenum coated skirt helps reduce friction, improve heat transfer, and minimize cold-seizure risk
- Machined smooth piston head helps reflect combustion heat and reduce carbon buildup
- Anodized dome improves heat resistance and piston durability
- Hypereutectic casting process provides reduced expansion, improved wear resistance, and increased resistance to higher cylinder temperatures
- Fits 1993-2002 Honda TRX300EX Sportrax models
- Brand: NAMURA; manufacturer and vendor part number: NA-10002-6K
Fitment:
1988 Honda TRX300 Fourtrax
1988 Honda TRX300FW Fourtrax 4X4
1989 Honda TRX300 Fourtrax
1990 Honda TRX300 Fourtrax
1990 Honda TRX300FW Fourtrax 4X4
1991 Honda TRX300 Fourtrax
1991 Honda TRX300FW Fourtrax 4X4
1992 Honda TRX300 Fourtrax
1992 Honda TRX300FW Fourtrax 4X4
1993 Honda TRX300 Fourtrax
1993 Honda TRX300EX Sportrax
1993 Honda TRX300FW Fourtrax 4X4
1994 Honda TRX300 Fourtrax
1994 Honda TRX300EX Sportrax
1994 Honda TRX300FW Fourtrax 4X4
1995 Honda TRX300 Fourtrax
1995 Honda TRX300EX Sportrax
1995 Honda TRX300FW Fourtrax 4X4
1996 Honda TRX300 Fourtrax
1996 Honda TRX300EX Sportrax
1996 Honda TRX300FW Fourtrax 4X4
1997 Honda TRX300 Fourtrax
1997 Honda TRX300EX Sportrax
1997 Honda TRX300FW Fourtrax 4X4
1998 Honda TRX300 Fourtrax
1998 Honda TRX300EX Sportrax
1998 Honda TRX300FW Fourtrax 4X4
1999 Honda TRX300 Fourtrax
1999 Honda TRX300EX Sportrax
1999 Honda TRX300FW Fourtrax 4X4
2000 Honda TRX300 Fourtrax
2000 Honda TRX300EX Sportrax
2000 Honda TRX300FW Fourtrax 4X4
2001 Honda TRX300EX Sportrax
2002 Honda TRX300EX Sportrax
2003 Honda TRX300EX Sportrax
2004 Honda TRX300EX Sportrax
2005 Honda TRX300EX Sportrax
2006 Honda TRX300EX Sportrax
2007 Honda TRX300EX Sportrax
2008 Honda TRX300EX Sportrax
2009 Honda TRX300EX Sportrax
2009 Honda TRX300X