6B6-11181-00-00 Head Gasket for Yamaha AR 230 HO 1100 2005-2009

Head Gasket for Yamaha

This head gasket for Yamaha seals the cylinder head to the engine block on 1100 series marine engines, replacing OEM part 6B6-11181-00-00 to keep compression contained and coolant where it belongs.

Overview

This head gasket for Yamaha is a direct replacement sealing component for the 1100 series engine used in AR 230 HO boats from 2005 through 2009. It maintains the seal between the cylinder head and block, preventing compression loss and coolant migration. It suits owners doing a top-end rebuild or replacing a blown gasket.

Built For Performance

• Cross-references OEM part number 6B6-11181-00-00 for straightforward matching
• Constructed to withstand the heat and pressure of marine engine combustion
• Designed for the 1100 series engine platform
• Provides a consistent sealing surface between head and block
• Suits top-end rebuild and gasket replacement work

Fits These Machines

• for Yamaha AR 230 HO, 2005-2009

On-The-Job Use

• Top-end engine rebuilds on 1100 series marine engines
• Replacing a failed or blown head gasket
• Cylinder head removal and reinstallation jobs
• Routine engine refresh before the boating season

Specs At A Glance

Good To Know

Q: Does this gasket fit both engines on a twin-engine boat? A: Yes, each gasket services one cylinder head, so a twin-engine setup generally requires two. Confirm your engine count before ordering.

Q: Should head bolts be replaced at the same time? A: Many marine engine rebuilds call for new torque-to-yield head bolts along with the gasket. Check your service manual for the recommended procedure.

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