Recmar Yanmar 3JH 4JH Thermostat Cover Gasket 129795-49551
REC129795-49551
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Regular price£2.31
/
Tax included.
Yanmar JH Thermostat Cover Gasket
3JH / 4JH | Replaces 129795-49551
Aftermarket top-cover/thermostat-neck gasket for a wide range of Yanmar 3JH and 4JH marine diesel engines using reference 129795-49551.
FITMENT CHECK: This is the cover gasket. The gasket/O-ring beneath thermostat 129470-49801 is commonly 129150-49811 and is a separate part.
Key Features
- Thermostat cover gasket
- For selected Yanmar 3JH and 4JH engines
- Seals thermostat neck/top cover
- Replaces 129795-49551
- Recmar aftermarket gasket
Technical Specs
| Part type | Thermostat cover gasket |
| Engine family | Yanmar 3JH / 4JH |
| Position | Thermostat neck / top cover |
| Quantity | One |
| SKU | REC129795-49551 |
Compatibility / Fitment Guide
| Engine family | Verified application | Notes |
|---|---|---|
| 3JH family | 3JH25A, 3JH30A, 3JH2E/TE, 3JH3E, 3JH4 and selected 3JH5 variants | Confirm complete suffix. |
| 4JH family | 4JH2/3/4/5 variants using 129795-49551 | Examples include 4JH3-TE and 4JH4-TE/HTE. |
| Industrial overlap | Selected TNE/TNV thermostat-neck assemblies | Use only when equipment parts list specifies this gasket. |
| Exclusion | Lower thermostat seal 129150-49811 | Different sealing position. |
Match the complete model suffix and OEM reference in the engine-specific parts book.
Part Number Cross Reference
| Yanmar | 129795-49551 |
| Related lower thermostat seal | 129150-49811 |
| Associated thermostat family | 129470-49801 |
| 4Boats SKU | REC129795-49551 |
Recmar aftermarket replacement; references identify compatibility only.
Frequently Asked Questions
Is this the gasket beneath the thermostat?
No. It is the top-cover/neck gasket.
Does it fit every 4JH?
No. Verify the full model and part number.
Is the thermostat included?
No.
Installation note: Fit a new gasket whenever the joint is opened and verify the cooling system is leak-free.
For the products under £150 the shipping is £6.99.
Free delivery for most items over £150.
