Starter Motor for Mercury Mariner 115-250HP Outboards - 12V CCW 9-Tooth
Starter Motor for Mercury Mariner 115-250HP Outboards - 12V CCW 9-Tooth
SKU:410-21061
Free shipping over £150. Terms apply
Couldn't load pickup availability
Starter Motor for Mercury Mariner 115-250HP Outboards - 12V CCW 9-Tooth
Fits Mercury and Mariner 115, 135, 150, 200, 225 and 250HP outboard engines, 1978-2005
This is a direct-fit replacement starter motor built to OEM specifications for Mercury and Mariner outboard engines from 115HP through to 250HP. It is a complete, ready-to-fit unit engineered to match the form, fit and function of the original equipment, so it bolts straight in place of the original starter with no adaptation required.
The unit runs on a standard 12-volt marine electrical system, turns counter-clockwise (CCW) and uses a 9-tooth drive pinion, designed for use with the 135-tooth flywheel fitted to these engines. Matching the drive pinion to the correct flywheel tooth count is essential on these high-horsepower V6 outboards, so this unit is built to the same 9-tooth, 135-tooth-flywheel specification as the original equipment starter.
Key Features
- Direct OEM fit and function - no modification required
- 12-volt marine starter motor
- Counter-clockwise (CCW) rotation
- 9-tooth drive pinion
- Designed for use with 135-tooth flywheel
- Permanent magnet direct drive (PMDD) construction
- 12-month warranty as standard
Technical Specs
| Specification | Detail |
|---|---|
| Voltage | 12V |
| Rotation | CCW (Counter-Clockwise) |
| Teeth | 9 |
| Starter Type | PMDD |
| Flywheel Compatibility | 135-tooth |
| Part Number | 410-21061 |
Vehicle Fitment Guide
Years shown are the overall coverage span for this part. Please confirm against the OEM part number on your original unit before ordering.
| Make & Model | Years |
|---|---|
| Mercury / Mariner 115HP Optimax (115L, 115XL, 115CXL) 1.9L-2.5L | 1978-2005 |
| Mercury 135HP Optimax (135L, 135XL, 135CXL) 2.5L | 1978-2005 |
| Mercury 150HP Optimax (150L, 150XL, 150CXL) 2.5L | 1978-2005 |
| Mercury 200HP (including ELPT, ELPTO) 2.3L-3.0L | 1978-2000 |
| Mercury 225HP (including ELPT, EXLPT, Optimax) 2.3L-3.0L | 1980-2001 |
| Mercury 250HP (3.0L / 185 cu in) | 2001 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number | Manufacturer / Brand |
|---|---|
| 50-856996T, 50-86976 | Mercury Marine |
| 18-5609 | Sierra Marine |
| 5381X | ARCO Marine |
| MOT3009 | API Marine |
| SAB0081 | Arrowhead |
| 4-5609 | EMP Parts |
| 5398, 5902 | Lester |
| 2-3146-UT, 5398N | WAI |
Frequently Asked Questions
Will this starter motor fit without any modification?
Yes, this is a direct OEM-fit replacement for the listed Mercury and Mariner outboard engines and requires no modification to install.
What is included in the box?
One complete starter motor unit, ready to fit in place of the original.
How do I know my old starter has failed?
Common signs include a clicking noise with no engine turnover, a slow or labouring crank, or no response at all when the key is turned or the start button is pressed.
Is this compatible with any flywheel?
This starter is designed for use with the 135-tooth flywheel. Please confirm your engine uses this flywheel before ordering.
How can I be certain this is the right starter for my engine?
Check the part number stamped on your existing starter against the cross reference table above - Mercury Marine 50-856996T and 50-86976, Sierra 18-5609 and ARCO 5381X are all covered by this unit.
Share
