Regulator Rectifier for Honda ATC 200 (1982-1984) - Moto-Electrical Replacement
Regulator Rectifier for Honda ATC 200 (1982-1984) - Moto-Electrical Replacement
SKU:RM03900
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RM03900 Improved Voltage Regulator Rectifier
Honda ATC 200 and TRX 200 - 1982, 1983, 1984
The RM03900 is a brand new 35 amp voltage regulator rectifier built as a direct replacement for the original unit on the Honda ATC 200 and TRX 200 three and four wheelers of 1982 to 1984. It is plug-and-play and a direct fit, so there is no assembly required and no cutting or splicing of the loom. The unit arrives ready to bolt on and connect.
Compared with the original Honda part it uses a higher grade of electrical components together with an improved heat sink and better charging capability, so quality exceeds the OEM equipment. Every unit shipped is tested. Importantly, the opposite connector for the main harness side is supplied in the box as well - these connectors are very often melted, corroded or otherwise defective on machines of this age and are a major cause of repetitive electrical faults that a new regulator alone will not cure.
Key Features
- Brand new 35 amp voltage regulator rectifier
- Direct replacement for your original unit
- Plug-and-play, direct fit, easy installation
- No assembly required
- Improved heat sink and charging capability
- Higher grade of electrical components
- Quality exceeds the OEM equipment
- Matching main harness side connector included
- All products tested before shipping
Technical Specs
| Specification | Detail |
|---|---|
| Part number | RM03900 |
| Width | 63 mm |
| Length | 66 mm |
| Height | 22 mm |
| Wire length | 235 mm |
| Fixation holes, centre to centre | 55 mm |
| Number of plugs | 1 |
| Number of pins | 4 |
| Number of wires | 4 |
| Minimum charging voltage | 14.5 V +/- 0.5 V |
| Maximum charging current | 25 A / 300 W |
| Open circuit voltage | Under 15 V |
| Operating temperature | -20 C to 85 C |
Vehicle Fitment Guide
| Make & Model | Years |
|---|---|
| Honda ATC 200 | 1982, 1983, 1984 |
| Honda TRX 200 | 1982, 1983, 1984 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number | Manufacturer / Brand |
|---|---|
| 31600-958-680 | Honda |
| 31600-958-681 | Honda |
| 31600-958-682 | Honda |
| 31600-VM5-000 | Honda |
| 08615-9580004 | Honda |
Frequently Asked Questions
Do I need to modify anything to fit it?
No. The RM03900 is a direct replacement for the original unit and is plug-and-play. No assembly is required, and the single four pin plug matches the factory connector. The fixation holes are 55 mm apart centre to centre, matching the original mounting.
What is included?
One RM03900 regulator rectifier with a 235 mm four wire lead and one plug, plus the opposite connector for the main harness side. That spare connector lets you renew a melted or corroded harness plug at the same time.
How do I tell the old regulator rectifier has failed?
Common signs are a battery that will not stay charged, charging voltage that never reaches around 14.5 V at the battery terminals, boiling or over-charged batteries, blown bulbs, and a regulator body that runs extremely hot. Melted or discoloured connector pins are another clear warning.
Why does the improved heat sink matter?
Regulator rectifiers fail mainly through heat. The RM03900 uses a larger and improved heat sink and higher grade components, and is rated to operate from -20 C to 85 C, so it sheds waste heat more effectively than the original design.
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