PK1357 Wiseco Std Piston Gasket Set for Yamaha YZ450F 2003-2005 YZ 450F

Std Piston and Gasket Set for Yamaha YZ450F

This Wiseco standard bore piston and gasket set, cross-referencing part PK1357, rebuilds the top end of the YZ 450F and restores lost compression.

Overview

This standard piston and gasket set brings the top end of the YZ450F back to factory bore with a forged piston and a full gasket kit. It suits riders and mechanics who want a dependable top end rebuild without boring the cylinder over. The set for Yamaha covers the piston, rings, pin, and gaskets needed for the job.

Built For Performance

• Standard bore size for a direct drop-in replacement
• Forged piston construction for strength under load
• Rings and wrist pin included in the set
• Full gasket kit for a clean top end seal
• Cross-references part number PK1357

Fits These Machines

• for Yamaha YZ450F 2003
• for Yamaha YZ450F 2004
• for Yamaha YZ450F 2005

On-The-Job Use

• Top end rebuilds after a season of track riding
• Restoring compression on a tired motocross engine
• Routine maintenance for trail and track riders
• Shop builds and engine refreshes

Specs At A Glance

Good To Know

Q: Does this set fit my YZ450F without machining? A: Yes, this is a standard bore set designed as a direct replacement for the listed model years. Confirm your cylinder is still on its original bore before ordering.

Q: Are new rings and gaskets included? A: Yes, the set includes the piston, rings, pin, and gasket kit for the top end. Reusing old hardware is not recommended.

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