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MERCURY STARTER MOTOR 50-97693M
Description
Function and technical context
The starter motor is the essential component of the ignition system in two-stroke marine engines, responsible for generating the initial rotation necessary to start the propeller. Integrated into the electrical ignition system, this assembly works in sync with the flywheel through its 11-tooth pinion, transmitting power efficiently even in demanding navigation conditions or in saline environments. Its failure implies the impossibility of starting the engine, leaving the boat without propulsion and compromising navigation safety.
When to replace this part?
The starter motor shows wear when the engine takes longer to start, makes a rattling sound without turning the steering wheel, or does not respond when pressing the start button. Although there is no fixed maintenance interval, it is advisable to check its condition at least once per boating season, especially after prolonged periods of inactivity or exposure to salinity. Replacing the starter motor preventatively prevents being stranded at sea and saves costly emergency repairs.
Mercury/MerCruiser
| Marca | Modelo | Rango de serie |
|---|---|---|
| Mercury Mariner | 20C (THRU PROP. EXHAUST) | 6A9-250820 & Up / 6A9-306543 & Up / 6A9-550694 & Up / 6A9-010112 & Up |
| Mercury Mariner | 25C (THRU PROP. EXHAUST) | 695-000101 THRU 023895 / 695-250101 THRU 253861 / 695-300101 THRU 318173 / 695-550101 THRU 555959 |
| Mercury Mariner | 30A | 689-022059 THRU 689-230100 (M) / 689-105325 THRU 689-530100 (ML) / 689-321377 THRU 689-250100 (E) / 689-411947 THRU 689-550100 (EL) / 689-000366 THRU 022058 / 689-100251 THRU 105324 / 689-301911 THRU 321376 / 689-401216 THRU 411946 |
| Mercury Mariner | 40 (TWIN CARB) (W/OIL INJECTION) | 6E9-150001 & Up / 6E9-350001 & Up / 6E9-450001 & Up / 6E9-015001 & Up |
| Mercury Mariner | 40C (TWIN CARB) | 6E9-000106 THRU 6E9-007665 (M) / 6E9-100101 THRU 6E9-105013 (E) / 6E9-300126 THRU 6E9-309343 (ML) / 6E9-400231 THRU 6E9-423162 (EL) |
| Mercury Mariner | 40C (TWIN CARB) (W/AUTO-BLEND) | 6E9-007666 THRU 6E9-015000 (M) / 6E9-105014 THRU 6E9-150000 (E) / 6E9-309344 THRU 350000 (ML) / 6E9-423163 THRU 450000 (EL) / 6E9-500101 & Up |
Equivalent manufacturer part numbers
| Manufacturer/Brand | Reference/Part Number |
|---|---|
| Mercury Mariner | 0049, 50-814980M, 50-84917M, 50-8M6007415, 50-96359M, 50-97693M, 84917M, 96359M, 97693M, ✓, (actual) |
| Yamaha | 689-81800-12-00, 689-81800-13-00, 6J4-81800-01-00 |
