Starter Motor for Mercury Mariner 50-814980M Yamaha 30HP 40HP 50HP 6J4-81800 11T
18310Na
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Starter Motor 50-814980M / 6J4-81800
Precision Engineered Marine Replacement
Restore the reliable starting power of your outboard with this premium-grade replacement starter motor. Specifically designed to handle the harsh marine environment, this unit is a direct-fit solution for various Mercury, Mariner, and Yamaha 2-stroke engines. Whether you are performing a repair or upgrading a manual-start engine to electric, this motor provides the torque and durability required for consistent ignition.
Key Features
- ✔ Direct fit for 3-cylinder outboard models
- ✔ High-torque permanent magnet design
- ✔ Corrosion-resistant finish for marine use
- ✔ Fully interchangeable with OEM Hitachi units
Technical Specs
| Voltage: | 12V |
| Power: | 0.6 kW |
| Teeth: | 11 Tooth |
| Rotation: | CCW (Counter-Clockwise) |
| Starter Type: | PMDD |
Compatibility / Fitment Guide
| Make/System | Model/Application | Notes |
|---|---|---|
| Yamaha Outboard | 30HP (1987-2002) | 2-Stroke Models |
| Yamaha Outboard | 40HP / 50HP (1989-2001) | 3-Cylinder Models |
| Mercury / Mariner | 25HP (1980-1984) | 2-Stroke Models |
| Mercury / Mariner | 30HP / 40HP (1980-1990) | Yamaha-Based Units |
OEM Cross Reference
| Mercury | 50-814980M, 50-814980T, 50-96359M, 50-97693M |
| Yamaha | 6J4-81800-00, 6J4-81800-01, 6F5-81800-10, 6F5-81800-11 |
| Hitachi | S108-80, S108-80A, S108-87, S108-87A, S108-94 |
| Other Ref | Sierra 18-6421, Arco 3423, Lester 18310 |
Questions & Answers
Is this a genuine original part?
This is a premium quality aftermarket replacement part, manufactured to meet or exceed original equipment (OE) standards for fitment and performance.
How do I know if it is compatible?
We recommend checking the SKU/MPN and Cross Reference list provided above. If your original part number matches any of these, it is a guaranteed fit.
My original starter has 9 teeth, will this work?
This specific unit is the 11-tooth version common on 3-cylinder models. If your engine requires a 9-tooth starter, this part may not align correctly with your flywheel. Always count the teeth on your existing drive gear before ordering.
Note: Please verify your original part number against the references above before purchasing. Distributed by 4boats.co.uk.
For the products under £150 the shipping is £6.99.
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