Voltage Regulator Rectifier for Yamaha SRX 250, SR 500 & SX 180/200 1978-1991
Voltage Regulator Rectifier for Yamaha SRX 250, SR 500 & SX 180/200 1978-1991
SKU:RMS020-101457
Free shipping over £150. Terms apply
Couldn't load pickup availability
Voltage Regulator Rectifier RMS020-101457 for Yamaha SRX 250, SR 500 and SX 180/200
Yamaha SRX 250 T / TC, SR 500, SX 180 and SX 200 - 1978-1991
This is a brand new aftermarket voltage regulator rectifier for the Yamaha SRX 250 T and TC, SR 500, SX 180 and SX 200 built between 1978 and 1991. It is supplied as a direct replacement for the original unit, so it sits in the factory mounting position and connects to the existing loom with no assembly, rewiring or modification required.
The unit is built with a higher grade of electrical components than the original part and is finished to a standard that exceeds OEM specification. Because the original connectors on these machines frequently melt or corrode, an additional connector for the main harness side is supplied in the box, so the wiring can be repaired properly at the same time the regulator is replaced.
Key Features
- Direct plug-and-play replacement - no assembly or modification needed
- Higher grade electrical components, quality exceeding OEM standards
- Single 6-pin plug with 6 wires, matching the original layout
- Rated to a maximum charging current of 50 A / 500 W
- Minimum charging voltage of 14.5 V, open circuit voltage below 15 V
- Operating temperature range of -20 C to 85 C
- Extra harness-side connector included to replace melted or corroded originals
Technical Specs
| Specification | Detail |
|---|---|
| Width | 80 mm |
| Length | 66 mm |
| Height | 29 mm |
| Wire length | 135 mm |
| Mounting hole spacing (centre to centre) | 68 mm |
| Number of plugs | 1 |
| Number of pins | 6 |
| Number of wires | 6 |
| Minimum charging voltage | 14.5 V +/- 0.5 V |
| Maximum charging current | 50 A / 500 W |
| Open circuit voltage | Less than 15 V |
| Operating temperature | -20 C to 85 C |
| RMSTATOR part number | RMS020-101457 |
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 |
|---|---|
| Yamaha SRX 250 T | 1978-1991 |
| Yamaha SRX 250 TC | 1978-1991 |
| Yamaha SR 500 | 1978-1991 |
| Yamaha SX 180 | 1978-1991 |
| Yamaha SX 200 | 1978-1991 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number | Manufacturer / Brand |
|---|---|
| 2J2-81960-60-00 | Yamaha |
| 2J2-81960-A0-00 | Yamaha |
| 2J2-81960-A1-00 | Yamaha |
| 4L0-81960-A0-00 | Yamaha |
Frequently Asked Questions
Will this fit my machine without modification?
Yes. It is a direct replacement for the original unit on the models and years listed above. The mounting holes are 68 mm apart centre to centre and the single 6-pin plug matches the factory connector, so no cutting, drilling or rewiring is required. Please check the part number on your original unit against the cross reference table before ordering.
What is included in the box?
The voltage regulator rectifier itself, plus an additional connector for the main harness side of the wiring, so a melted or corroded original plug can be replaced at the same time.
How do I know my old regulator rectifier has failed?
The usual signs are a battery that will not hold charge, a battery that overheats or swells from overcharging, lights that dim or flare with engine speed, and a regulator that runs extremely hot. Measured at the battery with the engine running, a healthy charging system reaches around 14.5 V. A reading that never rises above resting battery voltage, or one that climbs past 15 V, points to a failed regulator rectifier.
How much output can this unit handle?
Maximum charging current is 50 A, equivalent to 500 W, with a minimum charging voltage of 14.5 V plus or minus 0.5 V and an open circuit voltage below 15 V. It is rated for use between -20 C and 85 C, so it copes with both cold starts and prolonged running in hot weather.
Share
