Recmar Mercury Mariner 8-35HP Thermostat 60C 855676005 8M0119207
RM855676005
- Dispatched in 2-3 days
- 30 Day Return Policy
- Low stock - 3 items left
- Backordered, shipping soon
Recmar Mercury / Mariner Outboard Thermostat
60°C / 140°F | Replaces 855676005
Aftermarket replacement thermostat for selected small Mercury and Mariner four-stroke outboards that use the 855676/8M0119207 thermostat family. These include several Japan/Tohatsu-built engine platforms.
Key Features
- 60°C (140°F) opening specification
- For selected Mercury/Mariner 8–35 hp four-strokes
- Crosses to 855676002 and later 8M service numbers
- Aftermarket Recmar part; not genuine OEM
- One thermostat supplied
Technical Specs
| Part type | Outboard cooling thermostat |
| Opening temperature | 60°C / 140°F |
| Engine cycle | Four-stroke |
| Application | Selected 8–35 hp families |
| 4Boats SKU | RM855676005 |
Compatibility / Fitment Guide
| Engine / system | Application | Fitment condition |
|---|---|---|
| Mercury / Mariner 8 & 9.9 hp 209 cc | Four-stroke | Commonly from serial 0R042475 onward; verify catalogue |
| Mercury / Mariner 15 & 20 hp two-cylinder | Carburetted or SeaPro four-stroke variants | Common checkpoints include 0R235949 and 0R235168 |
| Mercury / Mariner 25 & 30 hp three-cylinder | EFI, Jet or SeaPro four-stroke variants | Confirm 855676005 or 8M0119207 by serial |
| Tohatsu / Nissan shared applications | Engines listing 3NV/3R3/3SA thermostat numbers | Match OEM reference and gasket separately |
Not for MerCruiser inboards, two-stroke Mercury engines or every 8–35 hp outboard. Thermostat gaskets are separate unless clearly pictured. Do not substitute a visually similar thermostat with a different temperature rating.
Part Number Cross Reference
| Mercury / Mariner | 855676005; 855676002; 8M0119207; 8M0139434 |
| Tohatsu / Nissan | 3NV-01030-0; 3R3-01030-0; 3SA-01030-0 |
| Sierra | 18-43175 |
| Recmar / 4Boats SKU | RM855676005 |
Cross-reference numbers identify compatible service applications; they do not make this aftermarket Recmar part a genuine OEM component.
Frequently Asked Questions
Is this genuine Mercury?
No. It is an aftermarket Recmar thermostat.
Is this for MerCruiser?
No. It is for specified small Mercury/Mariner four-stroke outboards.
Will it fit every 15 or 20 hp engine?
No. Confirm serial number, displacement and build family.
Does it include a gasket?
Only if shown in the product images; otherwise order the correct gasket separately.
Before ordering: confirm the engine serial and one of the listed OEM thermostat numbers before purchase.
For the products under £150 the shipping is £6.99.
Free delivery for most items over £150.