6JC-11181-00-00 Head Gasket for Yamaha FX HO 1800 2009-2023

Head Gasket for Yamaha

This head gasket for Yamaha personal watercraft seals the cylinder head to the engine block on the 1.8L 1800 engine, cross-referencing OEM part 6JC-11181-00-00 for a dependable fit.

Overview

This head gasket for Yamaha is a sealing component designed for the 1.8L 1800 marine engine found in FX HO models from 2009 through 2023. It contains combustion pressure, coolant, and oil at the head-to-block joint. Anyone rebuilding the top end or replacing a failed gasket will rely on this head gasket for Yamaha to keep the engine sealed.

Built For Performance

• Multi-layer steel construction handles heat and combustion pressure
• Precision-cut openings align with the 1800 head and coolant passages
• Cross-references OEM part 6JC-11181-00-00
• Maintains compression across all cylinders
• Separates coolant and oil galleries to prevent mixing

Fits These Machines

• for Yamaha FX HO 1800 (2009-2023)

On-The-Job Use

• Top-end rebuilds on the 1.8L 1800 engine
• Repairing coolant leaks at the head joint
• Restoring compression after gasket failure
• Engine teardown and inspection work

Specs At A Glance

Good To Know

Q: Should head bolts be replaced along with this gasket? A: If the 1800 engine uses torque-to-yield bolts, they are typically single-use, so check the service manual and replace them when specified for a reliable seal.

Q: What causes a head gasket to fail on these engines? A: Overheating, detonation, or a warped mating surface are common causes, so address the root issue before installing a new gasket to avoid a repeat failure.

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