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Regulator Rectifier Yamaha SRX250 T TC SR500 1978-1987 Repl 4F4-81960-A0

Regulator Rectifier Yamaha SRX250 T TC SR500 1978-1987 Repl 4F4-81960-A0

RMS020-101457

£128.40 GBP
£154.08 GBP £128.40 GBP
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Yamaha Regulator Rectifier

Fits SRX 250 T/TC & SR 500 (1978-1987)

Ensure reliable charging for your classic Yamaha with this high-quality **Voltage Regulator Rectifier**. Designed to replace the often-failing original units on the **Yamaha SRX 250** and the legendary **SR 500**, this part is essential for maintaining a healthy battery and protecting your bike's electrical system from overcharging.

This aftermarket unit features improved heat dissipation and updated electronics compared to the vintage OEM parts. It comes with the correct wiring harness and connector block for a straightforward installation.

CLASSIC RESTORATION: Perfect for bringing your 1970s or 80s Yamaha single-cylinder machine back to reliable running condition.

Key Features

  • ✔ Direct Replacement: Fits factory mounting points.
  • ✔ Stable Voltage: 14.5V +/- 0.5V regulation.
  • ✔ Updated Design: Better heat management.
  • ✔ Complete Unit: Includes connector harness.

Technical Specs

Voltage: 12 Volts
Max Current: 50A / 500W
Connector: 1 Plug (6 Pins)
Wire Count: 6 Wires
SKU Reference: RMS020-101457

Vehicle Fitment Guide

Make Model Year Range
Yamaha SRX 250 T / TC 1987
Yamaha SR 500 1978 - 1981
Yamaha SX 180 / 200 1978 - 1991

OEM Part Number Cross Reference

Yamaha 4F4-81960-A0, 2J2-81960-A0, 2J2-81960-A1, 2J2-81960-60
RM Stator RMS020-101457

Frequently Asked Questions

Will this fit my 1979 SR500?

Yes, this regulator rectifier is the correct replacement for the 1978-1981 Yamaha SR500 models.

Does it replace the original separate regulator?

This is a combined regulator/rectifier unit, designed to replace the original components which may have been separate or combined depending on the exact year/model.

How do I connect the wires?

The unit comes with a connector block. However, due to age and model variations, always verify wire colors against your bike's wiring diagram before connecting.

Note: Please check your connector shape and pin count before ordering.
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Shipping calculated at checkout. Free shipping over £150. Terms apply