The 729470-92605 Cylinder Head Gasket Kit is a high-quality OEM replacement for Yanmar 4JH-series marine diesel engines. Designed as a direct replacement for the original Yanmar kit, this aftermarket version provides the same fit, function, and sealing performance — at a more cost-effective price.

It includes all necessary gaskets and O-rings for cylinder head service, helping to restore compression, prevent leaks, and keep your marine engine running at peak performance.

Key Features & Benefits

• OEM Replacement — Manufactured to match Yanmar’s specifications

• Complete Kit — Cylinder head gasket plus manifold, gear case, oil sump, and water pump gaskets, as well as O-rings

• Marine-Grade Materials — Heat, pressure, and chemical resistant

• Cost-Effective Alternative — Lower price than genuine Yanmar OEM, without compromising on reliability

• Protects Engine — Prevents coolant and oil leaks, ensures compression, reduces risk of overheating

Engine Compatibility

This OEM replacement gasket kit fits the following Yanmar 4JH series engines:

• 4JH-TE

• 4JH-HTE

• 4JH-DTE

• 4JH-STE

• Other 4JH variations

(Check your engine serial number and manual before ordering.)

When to Replace

• Blown or leaking head gasket

• Coolant and oil cross-contamination (milky oil)

• Overheating problems traced to gasket failure

• Routine top-end rebuilds or overhauls

Why Choose an OEM Replacement Kit?

• Affordable alternative to genuine OEM parts

• Made with durable materials for marine conditions

• Provides the same fit and function as original Yanmar gaskets

• Prevents costly damage caused by leaks or compression loss

Available now at MarinePartSystem (MPS) — your trusted source for Yanmar engine replacement parts.