Namura .040 Over Bore Piston Kit for Honda Rubicon 500 4x4 fits 2015-2019 93mm

Namura .040 Over Bore Piston Kit for Honda

This .040 over bore piston kit is a high-quality aftermarket replacement designed to restore engine performance in the Honda Rubicon 500 4x4 from 2015 to 2019.

Overview

The Namura .040 Over Bore Piston Kit is a direct-fit solution for the Honda Rubicon 500 4x4, featuring a 93mm bore size that compensates for cylinder wear. This piston kit rebuilds compression and power, making it an ideal choice for ATV owners seeking a reliable, cost-effective engine overhaul.

Built For Performance

• Precision-machined from high-silicon aluminum alloy for thermal stability and durability
• .040 overbore configuration allows cylinder resurfacing while maintaining factory clearances
• Includes piston, rings, wrist pin, and circlips for a complete installation
• Rigidly tested to meet OEM specifications for consistent power delivery
• Lightweight design reduces reciprocating mass for improved throttle response

Fits These Machines

• for Honda Rubicon 500 4x4 (2015-2019)

On-The-Job Use

• Trail riding and recreational off-roading on rugged terrain
• Utility tasks like hauling and towing around property
• Agricultural and ranch work requiring reliable engine performance
• Restoration projects where a cost-effective rebuild is needed

Specs At A Glance

Good To Know

Q: Is this piston kit compatible with the stock cylinder? A: Yes, but the cylinder must be bored to .040 over size to match the piston diameter. Confirm with your machinist before ordering.

Q: Does the kit include everything needed for installation? A: Yes, it comes with piston, rings, wrist pin, and circlips. You will need new gaskets and a cylinder hone service separately.

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