Recmar Mercury 6-25HP 2-Stroke 120°F Thermostat Kit 14586A3
REC14586A3
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Regular price£28.99
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Tax included.
Mercury / Mariner 6–25HP Thermostat Kit
120°F | Selected two-stroke outboards
Aftermarket Recmar 120°F thermostat service kit corresponding to Mercury/Quicksilver 14586A3.
VERIFY BEFORE ORDERING: The earlier description called this a MerCruiser kit. Verified fitment is selected Mercury/Mariner 6–25hp two-stroke outboards; model and serial must match.
Key Features
- 120°F thermostat kit
- Selected Mercury/Mariner 6, 8, 9.9, 10, 15, 20 and 25hp two-strokes
- Aftermarket Recmar replacement
- Cross-reference Sierra 18-43052 / thermostat 18-3549
- Outboard cooling-system service part
Technical Specs
| Part type | Outboard thermostat service kit |
| Opening rating | 120°F / approx. 49°C |
| Engine type | Two-stroke outboard |
| 4Boats SKU | REC14586A3 |
Compatibility / Fitment Guide
| Engine group | Verified models | Checks / quantity |
|---|---|---|
| Mercury / Mariner 6–15hp | Selected 6, 8, 9.9, 10 and 15hp two-strokes using 14586A3 | Confirm serial and thermostat housing. |
| Mercury / Mariner 20 / 25hp | Selected two-stroke applications specifying 14586A3 | Not every 20/25hp engine is covered. |
| Supersession family | Selected applications linked to 75692A9/A10/A11 | Verify official supersession for the engine serial. |
Final fitment check: Confirm 14586A3 in the serial-specific cooling-system diagram. Do not use the previous MerCruiser classification.
Part Number Cross Reference
| Mercury / Quicksilver | 14586A3 |
| Sierra | 18-43052; thermostat 18-3549 |
| Recmar / 4Boats | REC14586A3 |
Frequently Asked Questions
Is this for MerCruiser?
No; verified fitment is Mercury/Mariner outboards.
What is the rating?
120°F, approximately 49°C.
Is it genuine Mercury?
No. It is aftermarket Recmar.
Verify all supplied seals/components against the engine diagram before dismantling.
For the products under £150 the shipping is £6.99.
Free delivery for most items over £150.
