Starter Relay Solenoid for Sea-Doo - RM09028
580 GT, GTS, GTX, SP | 650 XP, XPI | Explorer 650 | Speedster 1300 | 1989-1994
Brand new starter relay solenoid switch for Sea-Doo personal watercraft and sport boats built between 1989 and 1994. The starter solenoid is the heavy duty switch that sits between the battery and the starter motor. When you press the start button the small control current energises the coil inside the solenoid, which closes the main contacts and passes the full cranking current through to the starter.
Those main contacts are the part that burns and pits with use, which is why a tired solenoid produces the familiar single click, intermittent cranking or nothing at all. This RM09028 replacement is built to a quality that exceeds the OEM equipment and all products shipped are tested. All item pictures are accurate, so if in doubt do not hesitate to compare our item to your original part before you order.
Key Features
- Brand new starter relay solenoid switch
- Quality exceeds the OEM equipment
- All products shipped are tested
- Direct replacement for the original Sea-Doo unit
- Covers 580, 650, Explorer 650 and Speedster 1300 models
- Cross references seven Sea-Doo OEM part numbers
- Item pictures are accurate for visual comparison
Technical Specs
| Specification |
Detail |
| Part number |
RM09028 |
| Type |
Starter relay solenoid switch |
| Height |
64 mm |
| Length |
57 mm |
| Width |
75 mm |
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 |
| Sea-Doo 580 GT |
1989-1994 |
| Sea-Doo 580 GTS |
1989-1994 |
| Sea-Doo 580 GTX |
1989-1994 |
| Sea-Doo 580 SP |
1989-1994 |
| Sea-Doo 650 XP |
1989-1994 |
| Sea-Doo 650 XPI |
1989-1994 |
| Sea-Doo Explorer 650 |
1989-1994 |
| Sea-Doo Speedster 1300 |
1989-1994 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number |
Manufacturer / Brand |
| 278000201 |
Sea-Doo |
| 278000482 |
Sea-Doo |
| 278000077 |
Sea-Doo |
| 278000342 |
Sea-Doo |
| 295500294 |
Sea-Doo |
| 295500900 |
Sea-Doo |
| 278000009 |
Sea-Doo |
Frequently Asked Questions
Will it fit without modification?
Yes, it is a direct replacement for the original solenoid on the Sea-Doo models listed. The simplest check is to match the number on your original unit against the seven Sea-Doo part numbers in the cross reference table, and to confirm the 64 mm by 57 mm by 75 mm body will sit in the same mounting position.
What do I receive?
You receive one brand new starter relay solenoid switch, part number RM09028, tested before dispatch.
How do I know the old solenoid has failed?
A single loud click with no cranking, cranking that only works occasionally, or a starter that spins slowly despite a good battery all point at the solenoid. The internal contacts carry the full starter current and burn over time, so the fault usually gets worse rather than better.
Is a solenoid the same thing as a starter motor?
No. This part is the relay solenoid switch that carries current to the starter motor, not the motor itself. It is a far cheaper part to replace and is the more common failure on watercraft of this age, where damp and salt attack the contacts.
Dispatched from the UK · 12-month warranty · Fitment support from our technical team
