6S5-11181-00-00 Head Gasket for Yamaha 242 S 1800 2020

Head Gasket for Yamaha 242 S

This head gasket for Yamaha seals the cylinder head to the engine block on the 1800 engine, restoring proper compression and preventing coolant and combustion leaks, and it cross-references OEM part number 6S5-11181-00-00.

Overview

This head gasket for Yamaha is a direct-fit sealing component for the 1800 marine engine used in the 242 S. It maintains a reliable seal between the cylinder head and block under the high heat and pressure of marine operation. Designed for boat owners and marine mechanics handling top-end service, this head gasket for Yamaha helps restore factory sealing performance.

Built For Performance

• Cross-references OEM part number 6S5-11181-00-00 for straightforward matching
• Constructed to withstand the heat and pressure of marine engine operation
• Seals coolant passages and combustion chambers to protect compression
• Direct-fit replacement for the 1800 engine platform
• Built to original equipment sealing dimensions and thickness

Fits These Machines

• for Yamaha 242 S 1800 (2020)

On-The-Job Use

• Top-end rebuilds after overheating or gasket failure
• Cylinder head removal and reinstallation service
• Routine engine maintenance on the 1800 marine platform
• Restoring compression on a boat engine showing coolant loss

Specs At A Glance

Good To Know

Q: Is this an original Yamaha part? A: This is an aftermarket head gasket manufactured to fit Yamaha 1800 engines, and it cross-references OEM number 6S5-11181-00-00. It is not an original Yamaha product.

Q: Does this fit other Yamaha models? A: This gasket is listed for the 242 S with the 1800 engine, so confirm your model and serial number before ordering. Engines sharing the 1800 platform may also accept it.

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