Restore reliable top-end performance with the Namura NA-10007-1K Top End Kit. Designed for select Honda TRX350 Rancher 4X4 models, this kit includes the essential components needed for a complete top-end rebuild: piston, piston rings, wrist pin, retaining clips, top-end bearing, and gasket kit. The piston features a 78.71 mm (+0.25 mm) oversize specification and an 11:1 compression ratio for compatible applications.
Namura uses a hypereutectic casting process to increase silicon content, helping reduce expansion rates, improve wear resistance, and withstand elevated cylinder temperatures. The piston skirts feature a rolled-on MOS2 coating made from Teflon and molybdenum. This bonding process is designed to provide strong adhesion, improve heat transfer, reduce friction, and help minimize the risk of cold seizures during operation. Machined smooth heads help reflect combustion heat and reduce carbon buildup, while anodized domes improve heat resistance and durability.
This top-end kit is manufactured for fitment on 2000-2006 Honda TRX350FE Rancher 4X4 ES models and 2000-2002 Honda TRX350FM Rancher 4X4 models listed below. Verify the original piston specification, cylinder condition, and required oversize before installation. The manufacturer is Namura, and the vendor part number is NA-10007-1K.
Features:
- Complete top-end kit includes piston, rings, wrist pin, retaining clips, top-end bearing, and gasket kit
- 78.71 mm (+0.25 mm) oversize piston with an 11:1 compression ratio
- MOS2 Teflon and 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, increased wear resistance, and improved high-temperature performance
- Fits 2000-2006 Honda TRX350FE Rancher 4X4 ES models
- Fits 2000-2002 Honda TRX350FM Rancher 4X4 models
Fitment:
2000 Honda TRX350FE Rancher 4X4 ES
2000 Honda TRX350FM Rancher 4X4
2000 Honda TRX350TE Rancher ES
2000 Honda TRX350TM Rancher
2001 Honda TRX350FE Rancher 4X4 ES
2001 Honda TRX350FM Rancher 4X4
2001 Honda TRX350TE Rancher ES
2001 Honda TRX350TM Rancher
2002 Honda TRX350FE Rancher 4X4 ES
2002 Honda TRX350FM Rancher 4X4
2002 Honda TRX350TE Rancher ES
2002 Honda TRX350TM Rancher
2003 Honda TRX350FE Rancher 4X4 ES
2003 Honda TRX350FM Rancher 4X4
2003 Honda TRX350TE Rancher ES
2003 Honda TRX350TM Rancher
2004 Honda TRX350FE Rancher 4X4 ES
2004 Honda TRX350FM Rancher 4X4
2004 Honda TRX350TE Rancher ES
2004 Honda TRX350TM Rancher
2005 Honda TRX350FE Rancher 4X4 ES
2005 Honda TRX350FM Rancher 4X4
2005 Honda TRX350TE Rancher ES
2005 Honda TRX350TM Rancher
2006 Honda TRX350FE Rancher 4X4 ES
2006 Honda TRX350FM Rancher 4X4
2006 Honda TRX350TE Rancher ES
2006 Honda TRX350TM Rancher