Recmar Volvo Penta V6 V8 Closed Cooling Thermostat Kit 3831426
REC3831426
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Recmar Volvo Penta 3831426 Thermostat Kit
70°C / 158°F replacement for selected petrol engines with closed cooling
Aftermarket RECMAR thermostat kit replacing Volvo Penta 3831426. It is used across selected petrol V6 and V8 sterndrive/inboard installations with fresh-water or closed cooling. It must not be confused with the lower-temperature thermostat used on many raw-water-cooled versions.
Key Features
- RECMAR aftermarket kit; not genuine Volvo Penta
- 70°C / 158°F nominal calibration
- For selected Volvo Penta petrol V6/V8 installations
- Commonly used in closed/fresh-water-cooled applications
- Replaces multiple superseded Volvo Penta references
- Thermostat kit format; compare supplied seals with the removed assembly
Technical Specs
| Part type | Thermostat kit |
| Opening temperature | 70°C / 158°F nominal |
| Cooling system | Selected closed/fresh-water-cooled applications |
| Engine fuel | Petrol |
| 4Boats SKU | REC3831426 |
Compatibility / Fitment Guide
| Engine family | Verified application | Important notes |
|---|---|---|
| Volvo Penta 4.3L V6 | Selected 4.3GL, 4.3Gi, 4.3GS, 4.3GXi and 4.3OSi variants using 3831426 | Verify suffix and closed-cooling configuration |
| Volvo Penta 5.0L / 5.7L V8 | Selected GL, Gi, GXi and OSi families using 3831426 | Do not use engine displacement alone |
| Volvo Penta 7.4L / 8.1L / 8.2L V8 | Selected installations where the official parts list specifies 3831426 | Catalogue confirmation required |
| Raw-water-cooled petrol engines | Not the default choice | Many use a lower-temperature thermostat such as 3587597; verify before ordering |
Before ordering: Match part number, engine suffix and cooling-system type. The same base engine can use different thermostats depending on raw-water or closed cooling.
Part Number Cross Reference
| Volvo Penta OEM | 3831426 |
| Superseded / related Volvo references | 1544389; 824200; 875788 |
| Sierra | 18-3539 |
| Mallory | 9-43009 |
| RECMAR / 4Boats | REC3831426 |
Frequently Asked Questions
Is this for raw-water cooling?
It is primarily cross-listed for selected closed/fresh-water-cooled applications. Verify 3831426 for your exact engine.
Which engine sizes are covered?
Selected Volvo Penta 4.3L through 8.2L petrol families, but suffix and cooling configuration determine fitment.
Is this genuine Volvo Penta?
No. It is a RECMAR aftermarket replacement.
What temperature is it?
Nominally 70°C / 158°F.
Installation note: Allow the engine to cool, renew any disturbed seal or gasket where required, and follow the engine manufacturer's service procedure. After installation, run the engine and check for leaks and correct cooling-water flow.
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