The Namura NA-10040-2 Piston Kit is designed for select Honda Rancher 400 all-terrain vehicles requiring an 85.47 mm piston with a +0.50 mm overbore. This replacement piston kit supports engine rebuilding and restoration applications for the specified Honda TRX400FA and TRX400FGA models.
Fitment: Fits 2004–2007 Honda TRX400FA Rancher AT [SRA] and 2004–2007 Honda TRX400FGA Rancher AT GPScape [SRA]. Verify the cylinder bore, model designation, and required overbore before installation to ensure proper compatibility.
The piston is manufactured by Namura for dependable replacement performance in compatible Honda engines. The 85.47 mm piston size corresponds to a +0.50 mm overbore application. This kit will not accept OEM piston rings, and the included or matched rings will not work with an OEM piston. Use the correct Namura piston and ring combination together during installation.
Manufacturer Part Number: NA-10040-2
Vendor Part Number: NA-10040-2
Brand: Namura
Features:
- Size: 85.47 mm piston diameter with a +0.50 mm overbore specification
- Model: Replacement piston kit for Honda Rancher 400 AT applications
- Brand: Namura
- Manufacturer Part Number: NA-10040-2
- Vendor Part Number: NA-10040-2
- Fitment: 2004–2007 Honda TRX400FA Rancher AT [SRA]
- Fitment: 2004–2007 Honda TRX400FGA Rancher AT GPScape [SRA]
- Compatibility: Will not accept OEM rings, and the rings are not compatible with an OEM piston
Fitment:
2004 Honda TRX400FA Rancher AT [SRA]
2004 Honda TRX400FGA Rancher AT GPScape [SRA]
2005 Honda TRX400FA Rancher AT [SRA]
2005 Honda TRX400FGA Rancher AT GPScape [SRA]
2006 Honda TRX400FA Rancher AT [SRA]
2006 Honda TRX400FGA Rancher AT GPScape [SRA]
2007 Honda TRX400FA Rancher AT [SRA]
2007 Honda TRX400FGA Rancher AT GPScape [SRA]