Recmar Yanmar 3JH 4JH TNE Thermostat Gasket 129150-49811
REC129150-49811
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Regular price£2.10
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Yanmar JH / TNE Thermostat Gasket
Replaces 129150-49811 / 129470-49810
Aftermarket thermostat gasket/O-ring for Yanmar JH marine and TNE/TNV industrial engines using reference 129150-49811.
FITMENT CHECK: This seal fits the thermostat/circulation-pump side of the 129470-49801 application. A separate thermostat-cover gasket may also be required.
Key Features
- Thermostat gasket/O-ring
- For selected 3JH and 4JH marine engines
- Also used on selected 3TNE/4TNE/TNV engines
- Supersedes 129470-49810
- Recmar aftermarket seal
Technical Specs
| Part type | Thermostat gasket / O-ring |
| Associated thermostat | 129470-49801 application |
| Engine families | 3JH / 4JH / TNE / TNV |
| Quantity | One |
| SKU | REC129150-49811 |
Compatibility / Fitment Guide
| Application | Verified fitment | Checks |
|---|---|---|
| 3JH / 4JH marine | Examples include 3JH25A, 3JH30A, 4JH4E/TE/HTE and later JH variants listed by Yanmar | Confirm full suffix and gasket position. |
| 3TNE / 4TNE industrial | 3TNE84/88; 4TNE84/88 and selected turbo variants | Equipment-specific parts book required. |
| TNV family | Selected 3TNV/4TNV engines using 129150-49811 | Do not infer from series name alone. |
| Exclusion | 6LPA engines using 119773-49570 | Different seal. |
Confirm the exact engine model and original part number before ordering.
Part Number Cross Reference
| Yanmar current | 129150-49811 |
| Yanmar previous | 129470-49810; 129150-49810 |
| 4Boats SKU | REC129150-49811 |
Aftermarket replacement; OEM numbers identify the required application.
Frequently Asked Questions
Is this a cover gasket?
It seals the thermostat/circulation-pump side; some engines also need a separate cover gasket.
Does it fit every 4JH?
No. Confirm 129150-49811 in the model-specific diagram.
Is the thermostat included?
No.
Installation note: Clean sealing faces and replace any associated gasket or O-ring specified by the engine manual.
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