Namura .020 Over Bore Piston & Top End Gasket Kit for Honda Foreman 400 86.5mm

Namura .020 Over Bore Piston & Top End Gasket Kit for Honda

This aftermarket piston and top end gasket kit is designed for rebuilding a Honda Foreman 400 ATV, featuring a .020 over bore (86.5mm) to restore compression and performance.

Overview

The Namura .020 Over Bore Piston & Top End Gasket Kit provides a complete top end rebuild solution for your Honda Foreman 400. This piston and gasket kit includes an 86.5mm oversize piston with rings and all necessary gaskets to ensure a reliable rebuild. Designed specifically for the Honda Foreman 400, this kit delivers a perfect fit and dependable operation.

Built For Performance

• 86.5mm bore diameter provides .020 oversize for increased displacement
• High-strength aluminum alloy piston for durability
• Precision-machined piston skirt for reduced friction
• Includes complete top end gasket set with head gasket, base gasket, and O-rings
• Matched ring set ensures proper sealing

Fits These Machines

• for Honda Foreman 400

On-The-Job Use

• Rebuilding the top end of a Honda Foreman 400 ATV
• Restoring compression after a cylinder bore operation
• Replacing a worn or damaged piston and gaskets
• Overhauling the engine to improve power and reliability

Specs At A Glance

Good To Know

Q: Is this piston kit compatible with standard bore cylinders? A: No, this is a .020 overbore piston designed for cylinders bored to 86.5mm; it will not fit a standard bore cylinder.

Q: Does the gasket set include a cylinder base gasket? A: Yes, the top end gasket kit includes all necessary gaskets including the head gasket, base gasket, and O-rings for a complete top end rebuild.

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