Description
Yanmar 128270-11310 Valve Cover Gasket – OEM Replacement for 2GM-Series Marine Engines
The Yanmar 128270-11310 Valve Cover Gasket is a high-quality OEM replacement part designed for Yanmar 2GM-series marine diesel engines. This gasket ensures a tight, reliable seal between the valve cover and cylinder head, effectively preventing oil leaks and maintaining clean, efficient engine operation in demanding marine environments.
Ideal for top-end maintenance, valve adjustments, or full engine rebuilds, this gasket provides durable, oil-resistant sealing performance and serves as a cost-effective alternative to the genuine Yanmar OEM part — with the same reliability and precision fit.
⚙️ Compatibility
Compatible with the following Yanmar marine engines:
-
2GM(F)
-
2GM20
-
2GM20-YEU
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2GM20B
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2GM20C
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2GM20C-YEU
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2GM20F
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2GM20F-YEU
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2GM20FC-YEU
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2GM20FVE
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2GM20VE
-
2GMFL
-
2GMFY(E)-E
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2GML
-
2GMLP
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2GMLP-C
-
2GMYE-EC
-
2GMZ
(Always verify your engine model and serial number before ordering.)
📦 Technical Details
| Specification | Detail |
|---|---|
| Part Number | 128270‑11310 |
| Type | Valve Cover (Bonnet) Gasket |
| Material | Rubber / composite for oil resistance |
| Condition | New, OEM replacement |
| Compatibility | Full 2GM-series engines listed above |
💡 When to Replace
-
Oil leaks around the valve cover
- During top-end maintenance or engine rebuilds
✅ Why Choose This OEM Replacement Gasket
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Reliable performance matching Yanmar specifications
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Durable rubber/composite material for long-lasting sealing
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Cost-effective alternative to genuine OEM parts
-
Easy installation with basic hand tools
🛒 Available at MarinePartSystem
Purchase the Yanmar 128270‑11310 Valve Cover Gasket (OEM Replacement) at MarinePartSystem, your trusted source for marine engine replacement parts.






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