Namura .040 Over Bore Piston Kit for Honda Foreman Rubicon 520 2020-2026 97mm

Namura .040 Over Bore Piston Kit for Honda Foreman Rubicon 520

This Namura .040 over bore piston kit is a direct replacement for the 97mm bore of the Honda Foreman Rubicon 520 engine. It restores compression and power output after cylinder wear, providing a reliable rebuild solution. With its precision-machined design, this piston kit ensures a perfect fit for 2020-2026 models.

Overview

Designed for the 2020-2026 Honda Foreman Rubicon 520, this Namura .040 over bore piston kit offers an oversized option to refresh a worn engine block. The 97mm diameter piston increases displacement slightly while maintaining OEM-like performance. Ideal for ATV owners looking to rebuild their engine, this piston kit includes all necessary components for a complete top-end overhaul.

Built For Performance

• High-silicon aluminum alloy casting for strength and heat dissipation
• Phosphate-coated wrist pin reduces friction and wear
• Precision-honed cylinder fitment ensures minimum break-in time
• Includes full set of piston rings with proper end gap tolerances
• Matching wrist pin clips and retaining rings simplify installation

Fits These Machines

• for Honda Foreman Rubicon 520 (2020-2026)

On-The-Job Use

• Restores lost compression in high-mileage engines
• Matches original power and torque characteristics when combined with a cylinder hone
• Suitable for both recreational trail riding and utility work use

Specs At A Glance

Good To Know

Q: Can this piston kit be used without boring the cylinder? A: No, the .040 oversize requires the cylinder to be bored and honed to the correct clearance for a proper fit.

Q: Does the kit come with a cylinder head gasket? A: No, the kit includes only the piston, rings, wrist pin, and clips; the head gasket and base gasket must be purchased separately.

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