Namura .040 Over Bore Piston & Gasket Kit for Honda Rancher 420 2007-2008 87.5mm

.040 Over Bore Piston & Gasket Kit for Honda

This .040 over bore piston and gasket kit is designed to fit Honda Rancher 420 models from 2007 to 2008 with a 102mm bore.

Overview

This .040 over bore piston and gasket kit supplies the necessary piston and seals for a top-end rebuild on Honda Rancher 420 engines from 2007-2008. The .040 oversize piston allows machining the cylinder to the next size, restoring compression and eliminating cylinder wear. This .040 over bore piston and gasket kit is a popular choice for ATV enthusiasts and mechanics servicing Honda Rancher 420 models.

Built For Performance

• Oversized piston compensates for cylinder wear to maintain proper clearance
• Includes complete gasket set for top-end reassembly
• Piston rings are pre-gapped for quick installation
• Durable aluminum piston construction handles high operating temperatures
• Wrist pin and circlips are included for secure attachment

Fits These Machines

• for Honda Rancher 420 (2007-2008)

Specs At A Glance

Good To Know

Q: Can this .040 over bore piston be used on a standard bore cylinder? A: No, the cylinder must be bored to .040 oversize to match this piston; if your cylinder is still at standard bore, you need a standard size piston kit.

Q: Does the gasket kit cover all top-end gaskets? A: Yes, the included gasket set contains the head gasket, base gasket, and other necessary seals for reassembling the cylinder head.

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