6M6-11181-A1-00 Head Gasket for Yamaha Wave Runner III 650 1991

Head Gasket for Yamaha Wave Runner III 650

This head gasket seals the cylinder head to the engine block on the Wave Runner III 650, replacing OEM part 6M6-11181-A1-00 to maintain proper compression.

Overview

This head gasket is a direct-fit sealing component for the Yamaha Wave Runner III 650 personal watercraft. It sits between the cylinder head and block, holding combustion pressure and keeping coolant contained. Owners and shops servicing 1991 III 650 models will find this head gasket a solid replacement for a failed original.

Built For Performance

• Cross-references OEM part 6M6-11181-A1-00
• Seals the cylinder head to block joint under compression
• Construction suited to marine engine heat cycles
• Fits 650cc Yamaha Wave Runner applications
• Direct replacement for a failed or leaking gasket

Fits These Machines

• for Yamaha Wave Runner III 650, 1991

On-The-Job Use

• Top-end rebuilds after a blown head gasket
• Routine engine refresh on high-hour 650 machines
• Compression restoration on older Wave Runner models
• Shop service on 1991 III 650 watercraft

Specs At A Glance

Good To Know

Q: Does this gasket replace the factory part? A: Yes, it cross-references OEM number 6M6-11181-A1-00 for the III 650. Confirm your engine code before ordering.

Q: Should I replace head bolts at the same time? A: It is good practice on a top-end job to inspect and replace hardware as needed. Follow the torque sequence in your service manual.

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