Namura .010 Over Top End Kit for Yamaha Big Bear 400 & 1993-1999 Kodiak 83.25mm

Namura .010 Over Top End Kit for Yamaha Big Bear 400 & Kodiak

This Namura .010 over top end kit is a direct replacement for Yamaha Big Bear 400 and 1993-1999 Kodiak ATVs, featuring an 83.25mm bore size for an .010 oversize rebuild.

Overview

The Namura .010 over top end kit is designed for Yamaha Big Bear 400 and 1993-1999 Kodiak models to restore engine compression and power. This kit includes a piston, rings, wrist pin, circlips, and complete gasket set for a thorough top-end overhaul. It offers a cost-effective solution for worn ATV engines.

Built For Performance

• High-strength aluminum alloy piston with reinforced pin boss
• Precision-ground rings for optimal sealing and oil control
• Includes complete gasket set with head gasket, base gasket, and seals
• Wrist pin with circlips for secure installation
• Manufactured to exacting tolerances for reliable operation

Fits These Machines

• for Yamaha Big Bear 400
• for Yamaha Kodiak 400 (1993-1999)

On-The-Job Use

• Rebuilding ATV engines for trail riding and utility work
• Restoring power in high-mileage Yamaha ATVs
• Replacing worn top end components in farm or recreational vehicles

Specs At A Glance

Good To Know

Q: Does this top end kit include cylinder head gasket? A: Yes, the kit includes all necessary gaskets and seals for a complete top-end rebuild.

Q: Is this kit compatible with a stock cylinder? A: This .010 over kit is designed for cylinders that have been bored 0.010 inch oversized; stock cylinders will require machining.

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