A brand new starter relay solenoid switch for Johnson and Evinrude outboard motors, built as a direct replacement for the original unit. The starter solenoid is the heavy-duty switch that sits between the battery and the starter motor. When you turn the key, a small current energises the solenoid coil, which closes a set of high-current contacts and passes the full battery current through to the starter. Because those contacts carry hundreds of amps every time the engine is cranked, they gradually burn and pit - which is why the solenoid is one of the most common failure points on an older outboard.
This replacement solenoid is manufactured to a quality that exceeds the original equipment part, and every unit is tested before it is shipped. It is a direct replacement for the original, so it mounts in the same position using fixation holes 55 mm apart. Please note the usual safety precaution when working on any high-current starting circuit: disconnect the battery before servicing, as there is a risk of electric shock, and have the work carried out by a qualified technician if you are not confident with marine electrics.
Key Features
- Brand new starter relay solenoid switch
- Direct replacement for the original unit
- Quality exceeds the OEM equipment
- Mounts on 55 mm fixation hole centres, as original
- Cross references three OEM part numbers
- Suits Johnson and Evinrude outboards from 70 hp up to 235 hp
- All products shipped are tested
Technical Specs
| Specification |
Detail |
| Height |
70 mm |
| Length |
70 mm |
| Width |
60 mm |
| Distance between fixation holes |
55 mm |
| Part reference |
RMS090-106161 |
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 |
| Johnson Outboard 70-90 hp |
1976-1981 |
| Johnson Outboard 100-175 hp |
1976-1981 |
| Johnson Outboard 200 hp |
1976-1981 |
| Johnson Outboard 235 hp |
1976-1981 |
| Evinrude Outboard 70-90 hp |
1976-1981 |
| Evinrude Outboard 100-175 hp |
1976-1981 |
| Evinrude Outboard 200 hp |
1976-1981 |
| Evinrude Outboard 235 hp |
1976-1981 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number |
Manufacturer / Brand |
| 581528 |
Johnson / Evinrude |
| 172869 |
Johnson / Evinrude |
| 802139A1 |
Listed cross reference |
| RMS090-106161 |
RMSTATOR reference |
Frequently Asked Questions
Is any modification needed to fit this solenoid?
No. It is a direct replacement for the original unit and mounts using fixation holes 55 mm apart, as per the original. Disconnect the battery before starting work - there is a risk of electric shock, and installation should be carried out by a qualified technician if you are unsure.
What is included?
The starter relay solenoid switch itself, measuring 70 mm high by 70 mm long by 60 mm wide. Every unit is tested before it is shipped.
How can I tell my old starter solenoid has failed?
The classic symptom is a single loud click from the solenoid when you turn the key, with the starter motor not turning. Other signs are intermittent starting that improves after tapping the solenoid, a rapid chattering when you hold the key, or nothing at all despite a fully charged battery and clean cable connections. A solenoid whose internal contacts have burnt will often still click while failing to pass the starting current.
How do I confirm this is the correct part for my outboard?
Compare the number stamped on your existing solenoid with the cross reference list above. If it reads 581528, 172869 or 802139A1, this is the correct replacement for your engine.
Dispatched from the UK · 12-month warranty · Fitment support from our technical team
