Valve Cover Gasket Seal For Honda GL1800 Goldwing 12491-MCA-000 12391-MCA-000 US

Valve Cover Gasket Seal for Honda

This Valve Cover Gasket Seal for Honda prevents engine oil from escaping the cylinder head valve cover, cross-referenced with part numbers 12491-MCA-000 and 12391-MCA-000.

Overview

This Valve Cover Gasket Seal is designed to maintain a tight, reliable barrier against high oil pressures inside the engine cylinder head. Over time, heat causes original rubber seals to harden and leak oil onto exhaust components. This Valve Cover Gasket Seal provides touring motorcycle owners with a durable replacement to keep their engines clean and dry.

Built For Performance

• Molded from premium-grade elastomer for high thermal resistance.
• Flexible composition conforms to minor cylinder head surface irregularities.
• Resists degradation when exposed to synthetic and conventional engine oils.
• Precisely dimensioned to match original valve cover grooves.

Fits These Machines

• for Honda GL1800 Goldwing

On-The-Job Use

• Replacing dry, hardened gaskets during valve clearance adjustments.
• Curing oil leaks that drip onto hot exhaust manifolds and cause smoke.
• Sealing the cylinder head during routine top-end engine maintenance.

Specs At A Glance

Good To Know

Q: How often should I replace my valve cover gaskets? A: It is best to replace them whenever the valve cover is removed for service, or immediately if you spot oil weeping around the cylinder head.

Q: Do I need to apply liquid sealant to this gasket? A: While the gasket is designed to seal dry, applying a small dab of silicone sealant in sharp corners is a common practice.

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