Regulator Rectifier for Kawasaki Ninja ZX-9R ZX900 and ZX-12R ZX1200 2000-2003
Regulator Rectifier for Kawasaki Ninja ZX-9R ZX900 and ZX-12R ZX1200 2000-2003
SKU:RMS020-103117
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Voltage Regulator Rectifier - RMS020-103117
Kawasaki Ninja ZX-9R ZX900 and Ninja ZX-12R ZX1200 - 2000 to 2003
This is a brand new aftermarket voltage regulator rectifier built as a direct replacement for the original unit fitted to the Kawasaki Ninja ZX-9R (ZX900) and Ninja ZX-12R (ZX1200). It is a plug-and-play, direct fit part - installation is straightforward and no assembly is required. The regulator rectifier is the component that converts the alternating current produced by the stator into direct current and then holds the charging voltage at a safe level for the battery and the rest of the electrical system.
The unit is built using a higher grade of electric components, with quality that exceeds the original equipment specification, and every product shipped is tested before it leaves the factory. The package also includes the opposite connector - the main harness side plug - because these original connectors are frequently found melted, corroded or otherwise defective, and a damaged harness plug is one of the most common causes of repeat electrical faults after a regulator is replaced. Fitting the supplied connector at the same time as the regulator removes that failure point.
Key Features
- Brand new aftermarket replacement unit
- Direct replacement for the original regulator rectifier
- Plug-and-play, direct fit, easy installation
- No assembly required
- Higher grade of electric components - quality exceeds the OEM equipment
- All products shipped are tested
- Opposite connector (main harness side) included
- Maximum charging current of 50 A / 500 W
- Rated for operation from -20°C to 85°C
Technical Specs
| Specification | Detail |
|---|---|
| Width | 87 mm |
| Length | 110 mm |
| Height | 40 mm |
| Wire length | 180 and 185 mm |
| Fixation holes (centre to centre) | 80 mm |
| Number of plugs | 2 |
| Number of pins | 8 |
| Number of wires | 8 |
| Minimum charging voltage | 14.5 V +/- 0.5 V |
| Maximum charging current | 50 A / 500 W |
| Open circuit voltage | Less than 15 V |
| Operation temperature | -20°C to 85°C |
| Part code | RMS020-103117 |
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 |
|---|---|
| Kawasaki Ninja ZX-9R (ZX900) | 2000 - 2003 |
| Kawasaki Ninja ZX-12R (ZX1200) | 2000 - 2003 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number | Manufacturer / Brand |
|---|---|
| 21066-1119 | Kawasaki |
Frequently Asked Questions
Do I need to modify my wiring to fit this regulator rectifier?
No. This is a plug-and-play, direct fit replacement for the original unit and no assembly is required. It uses 2 plugs with 8 pins and 8 wires, with wire lengths of 180 and 185 mm, and the fixation holes are 80 mm centre to centre, matching the original mounting.
What is included in the box?
You receive the voltage regulator rectifier unit together with the opposite connector for the main harness side. That extra connector is supplied because the original harness plugs are often melted, corroded or defective and are a major cause of repetitive electrical issues.
How can I tell that my original regulator rectifier has failed?
A healthy charging system should reach a minimum charging voltage of 14.5 V +/- 0.5 V at the battery. A reading that stays well below that figure, or one that climbs above the open circuit voltage limit of 15 V and boils the battery, points to a failed regulator rectifier. Discoloured or melted connector housings are another strong indication.
How much charging output can this unit handle?
The maximum charging current is 50 A / 500 W and the open circuit voltage is held below 15 V. It is rated for operation between -20°C and 85°C, so it will cope with cold starts and with the heat generated in a fully faired sportsbike.
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