Namura .040 Over Bore Piston Rings for Honda Rancher 420 fits 2007-2026 87.5mm

.040 Over Bore Piston Rings for Honda

These .040 over bore piston rings for Honda are designed to restore compression and oil control in a rebuilt cylinder.

Overview

The .040 over bore piston rings for Honda provide an accurate fit for engines that have undergone cylinder boring. These .040 over bore piston rings for Honda ensure a tight seal against the cylinder wall to minimize blow-by. They are intended for engine builders performing top end rebuilds.

Built For Performance

• Durable alloy construction for wear resistance
• Precision tension for optimal wall contact
• Designed for 87.5mm cylinder bore
• Improved heat dissipation characteristics

Fits These Machines

• for Honda Rancher 420 2007-2026

On-The-Job Use

• Restoring power to engines with low compression
• Completing an engine top end refresh
• Seating rings in a freshly bored cylinder

Specs At A Glance

Good To Know

Q: Do I need to gap these rings? A: Yes, you must measure and adjust the end gap according to your specific engine service manual.

Q: Are these for a stock cylinder? A: These are oversized rings meant only for a cylinder that has been bored and honed to 87.5mm.

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