Namura Standard Bore Cylinder & Top End Kit for Yamaha YFZ450 non R / X 95mm

Namura Standard Bore Cylinder & Top End Kit for Yamaha

This complete top end kit includes a standard bore cylinder, piston, rings, gaskets, and wrist pin for rebuilding Yamaha YFZ450 non-R and X models with a 95mm bore.

Overview

The Namura standard bore cylinder and top end kit provides all necessary components for a complete top end rebuild on Yamaha YFZ450 non-R and X ATVs. Featuring a 95mm bore, this cylinder kit restores compression and performance. The Namura top end kit is a cost-effective alternative to OEM for riders looking to overhaul their YFZ450 engine.

Built For Performance

• Includes cylinder, piston, rings, wrist pin, and complete gasket set
• Standard 95mm bore size for direct replacement
• Namura's proven casting and machining for reliable performance
• Precision-matched piston and rings for optimal seal
• Designed for Yamaha YFZ450 non-R and X models

Fits These Machines

• for Yamaha YFZ450 (non-R)
• for Yamaha YFZ450X

On-The-Job Use

• Used for rebuilding top end on Yamaha YFZ450 sport ATVs
• Ideal for restoring lost compression and power in high-mileage engines
• Suitable for recreational trail riding and competitive racing
• Commonly used during full engine overhauls or top end refreshes

Specs At A Glance

Good To Know

Q: Is this kit compatible with the YFZ450R? A: No, this kit is specifically designed for the standard YFZ450 (non-R) and YFZ450X models. The YFZ450R uses a different cylinder.

Q: Does the kit include a cylinder head? A: No, this top end kit includes the cylinder and piston assembly but does not include the cylinder head or camshaft.

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