Yanmar 729470-92605 Cylinder Head Gasket Kit – OEM Replacement for 4JH-Series Marine Engines
The Yanmar 729470-92605 Cylinder Head Gasket Kit is a premium OEM-quality replacement designed for Yanmar 4JH-series marine diesel engines , including 4JH-TE, 4JH-HTE, 4JH-DTE, and 4JH-STE . Built to match the original Yanmar specifications , this aftermarket gasket kit ensures precise sealing, reliable compression, and complete leak prevention , delivering long-lasting performance in demanding marine conditions.
This complete kit includes all required gaskets and O-rings for cylinder head servicing — helping to restore compression , prevent coolant and oil leaks , and keep your engine running smoothly. Offering OEM-level quality at a more affordable price , it’s an ideal choice for top-end rebuilds, maintenance, or repair projects .
⚙️ 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 .
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