Restore reliable top-end performance with the NAMURA NA-10000-3K Top End Kit, designed for select Honda TRX450 Foreman ATV applications. This 90.71 mm (+0.75 mm) kit features an 11:1 compression piston and includes the essential components needed for a top-end rebuild, including the piston, rings, wrist pin, retaining clips, top-end bearing, and gasket kit.
The piston uses a hypereutectic casting process that increases silicon content to help reduce expansion, improve wear resistance, and withstand higher cylinder temperatures. Its MOS2 Teflon/molybdenum-coated skirts are applied using a rolled-on process that creates a strong bond, helping reduce friction, improve heat transfer, and minimize the risk of cold seizures. Machined smooth heads help reflect combustion heat and reduce carbon buildup, while the anodized dome improves heat resistance and durability.
Feature: Hypereutectic piston construction for improved thermal stability and wear resistance.
Feature: MOS2-coated skirts help reduce friction and support cold-start protection.
Feature: Machined smooth piston head helps limit carbon accumulation.
Feature: Anodized dome increases heat resistance and piston durability.
Feature: Complete top-end kit includes piston, rings, wrist pin, clips, bearing, and gasket kit.
Manufacturer: NAMURA. Vendor part number: NA-10000-3K. This kit fits 1998-2004 Honda TRX450FE Foreman ES [SRA] models and 1998-2000 Honda TRX450FM Foreman S [SRA] models. Verify the vehicle year, model, bore specification, and compression requirements before installation.
Features:
- Complete top-end kit includes piston, rings, wrist pin, retaining clips, top-end bearing, and gasket kit
- 90.71 mm (+0.75 mm) piston with 11:1 compression ratio
- MOS2 Teflon/molybdenum-coated skirts help reduce friction, improve heat transfer, and minimize cold-seizure risk
- Machined smooth piston head helps reflect combustion heat and reduce carbon buildup
- Anodized piston dome improves heat resistance and durability
- Hypereutectic casting process provides reduced expansion and increased wear resistance
- Fits select 1998-2004 Honda TRX450FE Foreman ES [SRA] and 1998-2000 Honda TRX450FM Foreman S [SRA] models
Fitment:
1998 Honda TRX450FE Foreman ES [SRA]
1998 Honda TRX450FM Foreman S [SRA]
1999 Honda TRX450FE Foreman ES [SRA]
1999 Honda TRX450FM Foreman S [SRA]
2000 Honda TRX450FE Foreman ES [SRA]
2000 Honda TRX450FM Foreman S [SRA]
2001 Honda TRX450FE Foreman ES [SRA]
2001 Honda TRX450FM Foreman S [SRA]
2002 Honda TRX450FE Foreman ES [SRA]
2002 Honda TRX450FM Foreman S [SRA]
2003 Honda TRX450FE Foreman ES [SRA]
2003 Honda TRX450FM Foreman S [SRA]
2004 Honda TRX450FE Foreman ES [SRA]
2004 Honda TRX450FM Foreman S [SRA]