6JC-11181-00-00 Head Gasket for Yamaha 242 LTD 1800 2010-2017

Head Gasket for Yamaha

This head gasket for Yamaha marine engines, OEM cross-reference 6JC-11181-00-00, seals the cylinder head to the engine block to maintain compression and prevent coolant and combustion leakage.

Overview

This head gasket for Yamaha is a direct-fit sealing component for 1800 series marine engines. The head gasket maintains a reliable seal between the cylinder head and block, protecting compression and coolant flow under load. It suits owners and technicians servicing Yamaha 242 LTD 1800 boats from 2010 through 2017.

Built For Performance

• OEM cross-reference 6JC-11181-00-00 for straightforward part matching
• Multi-layer construction designed to withstand high combustion temperatures
• Precise fitment for 1800cc Yamaha marine engine platforms
• Seals coolant passages to prevent overheating and fluid loss
• Maintains cylinder compression for consistent engine power
• Built to resist corrosion in raw-water marine environments

Fits These Machines

• for Yamaha 242 LTD 1800, 2010-2017

On-The-Job Use

• Top-end engine rebuilds and head gasket replacement
• Overheating diagnosis and coolant leak repair
• Compression loss troubleshooting on 1800 series engines
• Routine maintenance for Yamaha 242 LTD 1800 jet boats

Specs At A Glance

Good To Know

Q: Should head bolts be replaced when installing this gasket? A: Many manufacturers recommend new head bolts or studs on reassembly because torque-to-yield fasteners can stretch. Check your service manual for the correct procedure and torque sequence.

Q: Can I reuse this gasket if the engine is taken apart again? A: No, head gaskets are single-use crush components and should be replaced each time the head is removed. Reusing one risks compression and coolant leaks.

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