Namura .040 Over Bore Piston Kit for Honda Rubicon 500 4x4 fits 2001-2014 93mm

Namura .040 Over Bore Piston Kit for Honda

This Namura .040 over bore piston kit is a high-quality replacement for Honda Rubicon 500 4x4 ATVs from 2001 to 2014, restoring engine performance with a 93mm bore diameter. The piston kit includes rings, pin, and clips for a complete overhaul.

Overview

The Namura .040 over bore piston kit is engineered for the Honda Rubicon 500 4x4, offering a direct-fit upgrade that increases cylinder displacement. This piston kit uses premium materials to withstand high heat and stress, making it ideal for trail riding and utility work. If you need a reliable piston kit for your Rubicon, this aftermarket option delivers OEM-level quality at a competitive price.

Built For Performance

• High-silicon aluminum alloy casting for strength and heat dissipation
• Precision-machined skirt profile reduces friction and noise
• Moly-coated rings ensure quick seating and low wear
• Includes wrist pin and circlips for a complete installation
• Each piston is weight-matched to minimize vibration
• Oversized .040 provides increased compression and power

Fits These Machines

• for Honda Rubicon 500 4x4 (2001-2014)

On-The-Job Use

• Trail riding and recreational off-roading
• Farm and ranch utility tasks requiring reliable power
• Engine rebuilds and top-end overhauls
• Custom builds aiming for increased displacement

Specs At A Glance

Good To Know

Q: Is this piston kit compatible with stock cylinder? A: Yes, it is designed for use with a stock cylinder that has been bored to .040 oversize, so you will need to have the cylinder honed or bored to match.

Q: Does this kit include piston rings? A: Yes, the kit comes with rings, wrist pin, and circlips – everything needed for installation.

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