Namura .010 Over Bore Piston, Gasket Kit for Honda Rancher 420 2009-2026 86.75mm

Namura .010 Over Bore Piston and Gasket Kit for Honda Rancher 420 2009-2026 86.75mm

This Namura .010 over bore piston and gasket kit is a high-quality replacement for Honda Rancher 420 engines from 2009 to 2026, featuring an 86.75mm piston and a complete gasket set for a full top-end rebuild.

Overview

Designed for the Honda Rancher 420, this .010 over bore piston and gasket kit provides the necessary parts to restore engine compression and performance. It includes a precision-machined 86.75mm piston, rings, wrist pin, and a full gasket kit, making it an ideal solution for ATV owners and mechanics tackling a top-end rebuild.

Built For Performance

• Precision-machined from high-grade aluminum alloy for durability
• Oversized .010 over bore increases displacement and compensates for cylinder wear
• High-strength piston rings ensure optimal compression and oil control
• Complete gasket kit includes all necessary seals and gaskets for a reliable assembly
• Designed to meet or exceed OEM specifications for consistent performance

Fits These Machines

• for Honda Rancher 420 (2009-2026)

On-The-Job Use

• ATV engine rebuilds for Honda Rancher 420 models
• Restoration projects requiring an overbore piston
• Replacement of worn or damaged cylinder components
• Engine performance rebuilds for off-road riding and utility use

Specs At A Glance

Good To Know

Q: Does this kit include wrist pin and circlips? A: Yes, the kit typically includes the piston, rings, wrist pin, circlips, and a full gasket set. Please verify with your order if you need additional components.

Q: Can this piston be used with standard bore cylinder? A: No, this .010 over bore piston requires the cylinder to be bored to 86.75mm to match the oversized piston. Always confirm compatibility before installation.

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