6S5-11181-00-00 Head Gasket for Yamaha 212 S 1800 2020 Boat Engine

Head Gasket for Yamaha

This head gasket for Yamaha seals the cylinder head to the engine block, restoring compression on 1800 series marine engines, and cross-references OEM part number 6S5-11181-00-00.

Overview

This head gasket for Yamaha is a direct-fit sealing component for 1800 series marine engines, holding combustion pressure where the cylinder head meets the block. It is built for boat owners and marine mechanics handling top-end service on the 212 S. Installing a fresh head gasket for Yamaha helps prevent coolant seepage and compression loss.

Built For Performance

• Precision-cut to match the 1800 engine deck profile for a consistent seal
• Constructed from layered steel for heat and pressure resistance
• Reinforced around combustion openings to resist blowout
• Cross-references OEM part number 6S5-11181-00-00
• Designed to seal oil, coolant, and combustion gases at the head joint

Fits These Machines

• for Yamaha 212 S 1800 (2020)
• for Yamaha 1800 series marine engines using part 6S5-11181-00-00

On-The-Job Use

• Top-end rebuilds after overheating or compression loss
• Cylinder head removal and reinstall during valve service
• Seasonal maintenance for jet boat owners
• Marine repair shops handling Yamaha 1800 engines

Specs At A Glance

Good To Know

Q: Does this gasket need retorquing after installation? A: Follow the manufacturer torque sequence and spec for the 1800 head bolts, and recheck torque after the first heat cycle if the service manual calls for it.

Q: Can this be reused if the engine is taken apart again? A: A head gasket is a single-use item and should be replaced any time the cylinder head is removed, since the sealing layers compress permanently once torqued.

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