This is a brand new aftermarket voltage regulator rectifier for the Suzuki GS 500 F built between 2004 and 2009. It is a direct replacement for the original Suzuki unit and fits with no modification: the body measures 80 mm long by 66 mm wide by 27 mm deep, the two mounting holes are 66 mm apart centre to centre, and the part carries two plugs with five pins and five wires on a 290 mm lead, matching the factory layout exactly. No assembly is required.
The regulator rectifier turns the alternating current produced by the stator into direct current and then caps the output so the battery is charged rather than boiled. It is the component that absorbs and sheds the surplus as heat, which is why it is one of the commonest electrical failures on air-cooled twins of this era. RMSTATOR build this replacement with a higher grade of electrical components than the original equipment, to a standard they state exceeds OEM, and supply the opposite connector - the main harness side half of the plug - in the box, because it is so often found melted or corroded alongside a failed regulator. Every unit is tested before it is shipped.
Key Features
- Brand new aftermarket unit, not a rebuilt core
- Direct replacement for Suzuki 32800-01D00 and 32800C01D00J000
- Matching main harness side connector supplied in the box
- Plug-and-play - two plugs, five pins, five wires, 290 mm lead
- 66 mm fixation hole spacing as per the original
- Higher grade electrical components than the original equipment
- Regulated output of 14.5 V +/- 0.5 V, rated to 50 A / 500 W
- Every unit individually tested before dispatch
Technical Specs
| Specification |
Detail |
| Part number |
RMS020-107311 |
| Width |
66 mm |
| Length |
80 mm |
| Height |
27 mm |
| Wire length |
290 mm |
| Fixation hole spacing (centre to centre) |
66 mm |
| Number of plugs |
2 |
| Number of pins |
5 |
| Number of wires |
5 |
| 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 |
Vehicle Fitment Guide
| Make & Model |
Years |
| Suzuki GS 500 F |
2004-2009 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number |
Manufacturer / Brand |
| 32800-01D00 |
Suzuki |
| 32800C01D00J000 |
Suzuki |
| RMS020-107311 |
RMSTATOR |
Frequently Asked Questions
Do I need to modify the wiring?
No. This is a direct fit, plug-and-play replacement. The two plugs, the five wires on a 290 mm lead and the 66 mm mounting hole spacing all match the original Suzuki unit, so no cutting, splicing or assembly is needed.
What is supplied with it?
The voltage regulator itself and the opposite connector, the main harness side half of the plug. RMSTATOR include it because the harness connector is commonly found melted or corroded on machines of this age, and reusing a damaged one shortens the life of the new regulator.
How do I confirm the old regulator has failed?
Read the voltage across the battery terminals with the engine running and compare it with the regulated 14.5 V +/- 0.5 V in the specification table. No rise above resting battery voltage means the unit has stopped charging; a reading above 15 V means it is overcharging. Batteries that will not hold charge, repeatedly blown bulbs and a regulator body that is uncomfortably hot soon after starting all point to the same fault.
Which Suzuki part numbers does it replace?
It supersedes Suzuki 32800-01D00 and 32800C01D00J000. Check the number stamped on your original unit against those two before ordering, as the GS 500 family used more than one regulator specification over its production run.
Dispatched from the UK · 12-month warranty · Fitment support from our technical team
