This is a brand new neutral relay for the Yamaha YFM 350 Warrior and Raptor and the small Suzuki Quadsport quads. The neutral relay sits in the starter circuit and acts as the safety interlock: it allows the starter to turn only when the machine is in neutral, or when the clutch and brake conditions the manufacturer set are satisfied. It also usually drives the neutral indicator light on the handlebars.
When a neutral relay fails the machine typically will not crank at all even though the battery is healthy and the neutral light is on, or it cranks only intermittently. The unit is compact - 38.5 mm high, 24.5 mm long and 19.5 mm wide - with 4 terminals and a single plug, and it replaces Yamaha part numbers 3GD-81950-00-00 and 3GD-81950-01-00 and Suzuki numbers 31800-40B00, 31800-40B01 and 31800-40B02. The quality exceeds the OEM equipment and every relay is tested before it is shipped.
Key Features
- Brand new neutral relay
- Quality exceeds the OEM equipment
- 4 terminals with a single plug
- Compact 38.5 x 24.5 x 19.5 mm body, same as the original
- Replaces both the Yamaha and the Suzuki part numbers listed below
- Every relay is tested before dispatch
- Product photographs show the actual part - compare against your original if in doubt
- Dispatched from the UK with a 12-month warranty
Technical Specs
| Specification |
Detail |
| Part number |
RM18201 |
| Height |
38.5 mm |
| Length |
24.5 mm |
| Width |
19.5 mm |
| Number of terminals |
4 |
| Number of plugs |
1 |
| Condition |
Brand new, tested before shipping |
Vehicle Fitment Guide
| Make & Model |
Years |
| Yamaha YFM 350 Warrior |
1987-2013 |
| Yamaha YFM 350 Raptor |
1987-2013 |
| Suzuki Quadsport LT80 |
1996-2009 |
| Suzuki LT-Z50 |
2017 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number |
Manufacturer / Brand |
| 3GD-81950-00-00 |
Yamaha |
| 3GD-81950-01-00 |
Yamaha |
| 31800-40B00 |
Suzuki |
| 31800-40B01 |
Suzuki |
| 31800-40B02 |
Suzuki |
Frequently Asked Questions
Does it fit without modification?
Yes. The relay is built to the original size - 38.5 mm high, 24.5 mm long, 19.5 mm wide - with the same 4 terminals and single plug, so it drops straight into the position the original occupies. Compare your old relay against those dimensions and the part numbers listed above before ordering.
What is included?
The neutral relay itself. No mounting rubber, bracket or connector is listed with this part, so keep the original rubber mount and any bracket from the relay you take off.
How do I know the old neutral relay has failed?
The classic symptom is a quad that will not crank in neutral even though the battery is fully charged, the neutral light is lit and the starter itself is sound. Intermittent starting - it cranks one day and does nothing the next - points the same way. Before condemning the relay, check the battery, the neutral switch itself and the earth connections, since all three produce similar symptoms.
The same relay for a Yamaha and a Suzuki?
Yes. The same relay was used across the YFM 350 Warrior and Raptor and the small Suzuki Quadsport machines, which is why one part covers both makes. The reliable check is the number on your original unit: 3GD-81950-00-00 or 3GD-81950-01-00 on a Yamaha, or 31800-40B00, 31800-40B01 or 31800-40B02 on a Suzuki.
Dispatched from the UK · 12-month warranty · Fitment support from our technical team
