Genuine Tohatsu Outboard Float Valve 309-03147-1 MFS2.5 MFS3.5 2.5HP 3.5HP
309-03147-1
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Genuine Tohatsu Float Valve 309-03147-1
Authentic OEM Carburetor Replacement Part
This Genuine Tohatsu Float Valve (SKU: 309-03147-1) is a critical component for maintaining the fuel system integrity of your small outboard motor. Designed to regulate the flow of fuel into the carburetor float bowl, this needle valve prevents engine flooding and ensures a consistent air-fuel mixture for smooth idling and throttle response.
Key Features
- ✔ Genuine Tohatsu OEM Quality
- ✔ Precision Viton/Rubber Tipped Needle
- ✔ Corrects Carburetor Leaks & Flooding
- ✔ Direct fit for 2.5hp and 3.5hp models
Technical Specs
| Part Number: | 309-03147-1 |
| Supersedes: | 309-03147-0 |
| Weight: | 0.01 kg |
| Application: | Carburetor System |
| Brand: | Tohatsu |
Compatibility / Fitment Guide
| Make/Model | Engine Application | Notes |
|---|---|---|
| Tohatsu / Nissan | MFS2.5A, MFS2.5B | 4-Stroke Models |
| Tohatsu / Nissan | MFS3.5A, MFS3.5B | 4-Stroke Models |
| Tohatsu / Nissan | NS2.5, NS3.5 | Various 2-Stroke & 4-Stroke |
| Mercury / Mariner | 2.5hp, 3.3hp, 3.5hp | Tohatsu-built models only |
OEM Cross Reference
| Tohatsu/Nissan: | 309-03147-1, 309031471M, 309-03147-0 |
| Mercury Marine: | 952631, 815071 |
Questions & Answers
Is this a genuine original part?
Yes, this is an authentic Tohatsu OEM part, not an aftermarket replica. It arrives in genuine factory packaging.
How do I know if it is compatible?
We recommend checking the SKU 309-03147-1 against your engine's parts manual. This valve is standard for most Tohatsu 2.5 and 3.5 HP 4-stroke outboards.
Will this fix fuel leaking from the carburetor overflow?
Leaking from the overflow is usually caused by a worn float valve that can no longer seat properly. Replacing it with this genuine needle is the recommended solution.
Note: Proper carburetor cleaning is recommended when installing a new float valve to ensure no debris prevents the new needle from seating. Please verify your engine serial number if you are unsure of fitment.
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