PK1680 4841M04800 Piston Gasket Set for Yamaha Raptor 80 2002-2008 .040 Over

Wiseco .040 Piston and Gasket Set for Yamaha Raptor 80

This Wiseco .040 overbore piston and gasket set for Yamaha Raptor 80 restores top end compression on 2002-2008 models, with the kit cross-referencing PK1680 and 4841M04800.

Overview

This Wiseco .040 piston and gasket set for Yamaha Raptor 80 is a top end rebuild kit that replaces a worn or scored piston with a .040 inch overbore component. The set includes the piston, ring, pin, and gaskets needed to complete the job on 2002 through 2008 machines. It suits riders and shops rebuilding an aging Raptor 80 top end.

Built For Performance

• .040 inch overbore size increases displacement over the stock bore
• Wiseco forged piston construction for strength under load
• Piston, ring, pin, and gasket included for a complete top end job
• Cross-references PK1680 and 4841M04800 for straightforward parts lookup
• Direct fit replacement for 2002-2008 Yamaha Raptor 80 top ends
• Machined ring lands for consistent ring seal

Fits These Machines

• for Yamaha Raptor 80 2002
• for Yamaha Raptor 80 2003
• for Yamaha Raptor 80 2004
• for Yamaha Raptor 80 2005
• for Yamaha Raptor 80 2006
• for Yamaha Raptor 80 2007
• for Yamaha Raptor 80 2008

On-The-Job Use

• Top end rebuild after a seizure or loss of compression
• Routine rebuild during an engine overhaul
• Restoring a used Raptor 80 for trail riding
• Shop work on customer machines needing an overbore
• Refresh after a worn or scored cylinder is measured

Specs At A Glance

Good To Know

Q: Does a .040 overbore need a matching cylinder bore job? A: Yes, the cylinder must be bored and honed to match the .040 piston size before assembly.

Q: Can I install this on a stock bore cylinder? A: No, the cylinder has to be machined to the .040 oversize dimension first for the piston to fit correctly.

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