Namura .060 Over Bore Piston Kit for Honda Foreman 400 4x4 fits 1995-2003 87.5mm

Namura .060 Over Bore Piston Kit for Honda Foreman 400 4x4

This .060 over bore piston kit from Namura includes piston, rings, and pin for 1995-2003 Honda Foreman 400 4x4 ATVs, with an 87.5mm bore size.

Overview

This Namura .060 over bore piston kit is designed to restore compression and power in Honda Foreman 400 4x4 engines from 1995 to 2003. The 87.5mm piston provides a .060 oversize that fits cylinders needing a fresh bore job. It is a direct replacement for the stock piston assembly and includes all necessary components for installation.

Built For Performance

• High-strength aluminum alloy piston for reduced weight and improved thermal conductivity
• Moly-coated skirt reduces friction and scuffing
• Precision-ground rings ensure proper sealing and oil control
• Includes wrist pin and circlips for a complete kit
• Designed for .060 over bore (87.5mm) to clean up worn cylinder walls

Fits These Machines

• for Honda Foreman 400 4x4 1995
• for Honda Foreman 400 4x4 1996
• for Honda Foreman 400 4x4 1997
• for Honda Foreman 400 4x4 1998
• for Honda Foreman 400 4x4 1999
• for Honda Foreman 400 4x4 2000
• for Honda Foreman 400 4x4 2001
• for Honda Foreman 400 4x4 2002
• for Honda Foreman 400 4x4 2003

On-The-Job Use

• Engine rebuild or top-end refresh on Honda Foreman 400 4x4
• Farm and utility ATV applications requiring reliable power
• Trail riding and recreational use after a cylinder boring service

Specs At A Glance

Good To Know

Q: Do I need to bore the cylinder for this piston? A: Yes, this is a .060 over size piston, so the cylinder must be bored to 87.5mm before installation.

Q: Is the piston pre-assembled? A: The wrist pin and circlips are included but not installed; you will need to assemble them during installation.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.