Mercruiser 4 Cyl 12V Starter Motor 3.0L GM Engines 50-8M0090697 Marine
Mercruiser 4 Cyl 12V Starter Motor 3.0L GM Engines 50-8M0090697 Marine
SKU:6563N
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Mercruiser 4 Cyl 12V Marine Starter Motor
Reliable starting for Mercruiser 3.0L GM Engines (1990-1998)
Don't let a faulty starter ruin your time on the water. This high-quality 12V starter motor is specifically engineered to provide consistent and powerful starts for your Mercruiser 4-cylinder marine engine. Designed as a direct replacement, it meets or exceeds OEM specifications, ensuring reliable performance when you need it most.
Whether you're replacing a worn-out unit or upgrading for peace of mind, this starter motor is built to withstand the rigorous demands of the marine environment. Its robust construction and precise engineering deliver efficient power transfer, making it an essential component for any Mercruiser owner seeking dependable engine ignition.
Key Features
- ✔ Optimised for Marine Use: Specifically designed to withstand harsh marine conditions.
- ✔ 11-Tooth Pinion Gear: Ensures robust and positive engagement with the flywheel.
- ✔ Bottom Mount Installation: Designed for specific engine configurations with a bottom mount starter.
- ✔ Straight-Across Bolt Pattern: For secure and accurate mounting (long and short bolt compatible).
- ✔ Clockwise (CW) Rotation: Matches original equipment for correct engine operation.
- ✔ Earth Return System: Standard wiring for ease of integration.
Technical Specs
| Voltage: | 12V |
| Pinion Teeth: | 11 |
| Rotation: | Clockwise (CW) |
| Mounting Type: | Bottom Mount, 2-Bolt, Straight Across |
| Earth Return: | Yes |
Vehicle Fitment Guide
| Make | Engine Type/Series | Year Range |
|---|---|---|
| Mercruiser | 4-Cylinder (3.0L Series) Marine Gasoline Engines | 1990-1998 |
| Mercruiser (General Motors Based) | Inline 4-Cylinder & 6-Cylinder Engines | 1963-1998 |
| GM Built Marine Engines (I/O applications) | 3.0L, 4.3L, 5.0L, 5.7L (with 12 3/4" Bottom Mount Starter) | Various (confirm mounting) |
OEM Part Number Cross Reference
| Mercruiser | 50-8M0090697, 50-806963A2, 50-806963A4, 50-806965A2, 50-806965A4, 50-812429A2 |
| Delco | 9000763, 9000820, 9000822 |
| Sierra | 18-5919, 18-5911, 18-5900 |
| Volvo Penta | 3856003 |
| Arco | 30460 |
Frequently Asked Questions
What Mercruiser engines does this starter motor fit?
This starter motor is a direct fit for Mercruiser 4-cylinder (3.0L Series) marine gasoline engines from 1990-1998. It can also be used on other inline 4-cylinder and 6-cylinder GM-based MerCruiser engines manufactured between 1963 and 1998, provided they use a bottom mount, straight-across bolt pattern starter.
What are the key technical specifications of this starter?
It operates on 12 volts, features an 11-tooth pinion gear, and has a clockwise (CW) rotation. It is designed for bottom mount installations with a straight-across 2-bolt mounting pattern and uses an earth return system.
Is this an OEM or aftermarket part?
This is a high-quality aftermarket starter motor, designed to be a direct replacement for Mercruiser OEM part number 50-8M0090697. It meets or exceeds the original equipment manufacturer's specifications for fit, form, and function, offering reliable performance at a competitive price.
Why is a marine-specific starter important?
Marine starters are specifically built to withstand the unique challenges of the marine environment, including exposure to moisture, salt, and vibrations. They often feature ignition protection to prevent ignition of fuel vapours, which is crucial for safety on boats. Using a non-marine starter in a boat can pose significant safety risks and lead to premature failure.
Note: Please verify your bike's model and year before purchasing.
Fast shipping available across the UK and Europe.
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