Namura Standard Bore Top End Rebuild Kit for Honda XR400R 1996-2004 85mm

Standard Bore Top End Rebuild Kit for Honda

This top end rebuild kit is designed for the Honda XR400R from 1996 to 2004, including a standard bore 85mm piston, rings, wrist pin, and full gasket set to restore compression and power.

Overview

This top end rebuild kit provides all components needed to refresh the cylinder head of a Honda XR400R. It includes a standard bore 85mm piston, rings, pin, and full gasket set. Suitable for restoring compression and power on 1996-2004 models.

Built For Performance

• Oversized piston pins and circlips for reliable retention
• Chrome-plated piston rings reduce friction and boost sealing
• Complete head gasket set includes all seals and o-rings
• Wrist pin bearing included for smooth articulation
• Precision-machined piston skirt minimizes slap upon startup

Fits These Machines

• for Honda XR400R (1996-2004)

On-The-Job Use

• Off-road trail riding and enduro racing
• Bike restoration and engine overhaul projects
• Competitive motocross and hare scramble events
• Daily trail maintenance and weekend riding
• Engine performance rebuild after top end wear

Specs At A Glance

Good To Know

Q: What is included in the top end rebuild kit? A: The kit typically contains a piston, rings, wrist pin, circlips, and a complete gasket set for the cylinder head and cylinder base.

Q: Do I need to re-use my old cylinder? A: Yes, the standard bore piston fits the original cylinder bore if it is within service limits. Have your cylinder measured by a machine shop before assembly.

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