This is a brand new aftermarket voltage regulator rectifier designed as a direct replacement for the original unit on the 2005 and 2006 Kawasaki Ninja ZX-6R (ZX6R) and Ninja ZX-6RR (ZX6RR). It is plug-and-play, a direct fit and easy to install, with no assembly required. The regulator rectifier rectifies the alternating current from the stator into direct current and holds the charging voltage at a safe level so the battery, the ECU and the lighting circuit all see a stable supply.
The unit is built with a higher grade of electric components and the quality exceeds the OEM equipment. All products are tested before shipping. The package also includes the opposite connector for the main harness side, because these original plugs are often melted, corroded or defective and are a major cause of repetitive electrical issues. Fitting a new regulator into a burnt harness plug simply repeats the fault, so the mating connector is supplied to let you renew both halves of the joint at the same time.
Key Features
- Brand new aftermarket replacement unit
- Direct replacement to your original unit
- 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
- Long 600 mm wire tails for easy routing
- Maximum charging current of 50 A / 500 W
Technical Specs
| Specification |
Detail |
| Width |
77 mm |
| Length |
89 mm |
| Height |
28 mm |
| Wire length |
600 mm |
| Fixation holes (centre to centre) |
66 mm |
| Number of plugs |
2 |
| Number of pins |
6 |
| Number of wires |
7 |
| 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 range |
-20°C to 85°C |
| Part code |
RMS020-103027 |
Vehicle Fitment Guide
| Make & Model |
Years |
| Kawasaki Ninja ZX-6R (ZX6R) |
2005 - 2006 |
| Kawasaki Ninja ZX-6RR (ZX6RR) |
2005 - 2006 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number |
Manufacturer / Brand |
| 21066-0016 |
Kawasaki |
Frequently Asked Questions
Do I need to cut or modify the loom to fit this?
No. It is a plug-and-play, direct fit replacement and no assembly is required. The unit uses 2 plugs with 6 pins across 7 wires, the mounting holes are 66 mm centre to centre and the wire length is 600 mm, so it mounts and connects exactly like the original.
What is supplied in the box?
The voltage regulator rectifier unit plus the opposite connector for the main harness side. The extra connector is included because the original harness plugs are often melted, corroded or defective and cause repeat electrical faults.
What are the signs that the old regulator rectifier has failed?
Charging voltage at the battery should reach a minimum of 14.5 V +/- 0.5 V with the engine running. A reading that sits below that, a battery that will not hold charge overnight, or a voltage that climbs past the 15 V open circuit limit all point to a failed unit. Melted or discoloured connector housings on the regulator plug are another clear sign.
Will it cope with the heat under a ZX-6R fairing?
The unit is rated for operation from -20°C to 85°C and handles a maximum charging current of 50 A / 500 W, with the open circuit voltage held below 15 V. As with any regulator rectifier, mount it in its original location so it keeps the airflow the factory intended.
Dispatched from the UK · 12-month warranty · Fitment support from our technical team
