This is a brand new starter relay solenoid switch for Arctic Cat Prowler, TRV and Wildcat 700 and 1000 machines and for the Yamaha SR Viper 1000, supplied as a direct replacement for your original unit. The relay is the heavy-duty switch that connects the battery to the starter motor. When the start button is pressed, a small current energises the relay coil, which pulls a pair of large contacts together and lets the full starting current pass through to the starter. Those contacts carry the entire load on every single start, so over time they arc, pit and corrode until they can no longer pass current cleanly - the usual reason a machine clicks but will not crank.
The quality of this unit exceeds the OEM equipment it replaces, and all products shipped are tested before dispatch. It reproduces the original fitting dimensions exactly, including the 53 mm spacing between the fixation holes, and carries two heavy terminals and a single plug, so it sits in the factory location and reconnects to the standard loom and battery cables with no cutting, splicing or adapters. The body measures 73 mm long, 58 mm high and 46 mm wide, matching the space the original unit occupied.
Key Features
- Brand new aftermarket starter relay solenoid switch
- Quality exceeds the OEM equipment it replaces
- All products shipped are tested before dispatch
- Direct replacement for the original unit
- 53 mm between the fixation holes - uses the factory mounting
- Two heavy-duty terminals and a single plug
- Compact body: 73 mm long, 58 mm high, 46 mm wide
- Cross references Arctic Cat 0445-058 and Yamaha 8JP-H1940-00-00
Technical Specs
| Specification |
Detail |
| Part code |
RMS090-104890 |
| Component type |
Starter relay solenoid switch |
| Height |
58 mm |
| Length |
73 mm |
| Width |
46 mm |
| Distance between fixation holes |
53 mm |
| Number of terminals |
2 |
| Number of plugs |
1 |
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 |
| Arctic Cat Prowler 700 / 1000 |
2007-2018 |
| Arctic Cat TRV 700 / 1000 |
2007-2018 |
| Arctic Cat Wildcat 700 / 1000 |
2007-2018 |
| Yamaha SR Viper 1000 |
2007-2018 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number |
Manufacturer / Brand |
| 0445-058 |
Arctic Cat |
| 0445-123 |
Arctic Cat |
| 0445-036 |
Arctic Cat |
| 0645-414 |
Arctic Cat |
| 0437-102 |
Arctic Cat |
| 8JP-H1940-00-00 |
Yamaha |
Frequently Asked Questions
Does it need any modification to fit?
No. It is a direct replacement for your original unit. The fixation holes are 53 mm apart to match the factory mounting, and the two terminals and single plug match the standard connections, so no cutting, splicing or adapters are needed.
What is supplied?
One brand new starter relay solenoid switch, tested before dispatch. Reuse the battery cable, starter cable, terminal nuts and mounting hardware from your old relay.
How do I know the old relay has failed?
A single loud click with no crank, rapid repeated clicking, or a starter that turns slowly on a fully charged battery are the classic symptoms. Worn contacts drop voltage before it reaches the starter, so the relay body itself often warms up after a few attempts. Starting that works when the machine is cold and fails once everything is hot points the same way.
How do I check it is the right part for my machine?
Compare the OEM number stamped or labelled on your original relay against the cross reference table above, and check the 53 mm hole spacing and the two-terminal, one-plug layout against the unit you are removing. If the numbers and the layout match, this is the correct part.
Dispatched from the UK · 12-month warranty · Fitment support from our technical team
