Product Description
Brand new, Rmstator Stator + Flywheel + Lithium-Ion Voltage Regulator + Gasket.
Brand new aftermarket Stator + Flywheel + Regulator (Lithium-Ion) + Gasket + Connectors Kit
- Crankcase cover gasket included
- Connector kit included
- All products are tested
All item pictures are accurate; if in doubt, do not hesitate to compare our item to your original part.
Brand new aftermarket stator
- Direct replacement to your original unit
- Plug-and-play, direct fit, easy installation
- Highest grade of lamination materials
- Highest grade of copper winding, resistant to 200 degrees Celsius
- Connector included
- Rubber grommet included
Brand new Magneto Flywheel Rotor
Why use Mosfet Enhanced technology?


Runs cooler
Runs much cooler than the traditional Shunt voltage regulator rectifier.

Saves gas
Less load on the stator, less work, less fuel is used and you save.

Regulated energy
The power charging your battery is steadier and smooth.

Extended battery life
Extends the battery’s life and cold cranking capacity.

More engine power
Removes stator load resulting in more engine power.

Optimized power
Optimize power delivery by switching the stator coils on or off.
With design
This product is an advanced design that lowers operating temperatures for extended longevity and better performance than the OEM part.
Brand new Mosfet voltage regulator rectifier
WORKS WITH LITHIUM BATTERIES ONLY
Stop burning your voltage regulator rectifier!
It is time to update or replace your voltage regulator with the advanced MOSFET type.
It runs cooler than all SCR diode-style OEM regulators. In addition, this rectifier has overheat protection, rather than burn up it will simply turn off for a while and cool off.
Top Features
- Direct replacement to your original unit
- Plug-and-play, direct fit, easy installation
- The quality exceeds the OEM part
- Higher grade of electric components
- Opposite connector (main harness side) included as we know these are often melted / corroded / defective and a major cause for repetitive electrical issues.
Why do you need a different voltage regulator for lithium batteries?
Lithium batteries have different charging requirements than Lead Acid or AGM batteries that can severely affect their lifespan and performance. The key factors in safe and reliable lithium battery charging are the output DC voltage ripple and average output voltage. The RMSTATOR regulator is designed around the optimal parameters for these factors.
The ripple effect is all that matters
Charging voltage ripple in a powersports application is the difference between the highest and lowest voltages from the voltage regulator output. By nature, a common shunt style voltage regulator will have a fairly high voltage ripple due to the regulation shunt switches opening and closing frequently. Each on/off transition will cause some variation in the output voltage, this is unavoidable. Keeping this to minimum is critical for Lithium batteries, and the RMSTATOR Lithium regulator is designed around this feature.
In a perfect world, a ripple of less than 10% of the output voltage (~1.5V for a typical regulator), would be ideal, however is not practical for this type of regulator. The RMSTATOR Lithium regulator is able to maintain a less than 4 Volts output ripple, compared to verified test results of our competitors 8 volts. Keep in mind this ripple voltage is only seen via an Oscilloscope sampling the voltage 1000�s of times a second, and is not the same as your average charging voltage as measured by a multimeter
Stator Dimensions :
Interior diameter : 18 mm
Exterior diameter : 68 mm
Thickness : 42 mm
Length of wires stator to grommet : 125 mm
Length of wires grommet to plug : 500 mm
Other specifications :
Number of wires : 3
Number of plugs : 1
Number of pins : 3
Wire to wire resistance :
Alternator : Between each White = 0.4 ohms +/-20%
Regulator Dimensions :
Width: 94 mm
Length: 114 mm
Height: 32 mm
Fixation holes center to center: 74 mm
Other specifications:
Number of plugs: 2
Number of pins: 5
Number of wires: 5
Minimum Charging Voltage: 14.0 V � 0.2 V DC
Maximum Charging Current: 50 A / 500 W
Operation Temperature: -20? to 85?
Flywheel Dimensions :
Exterior Diameter: 80 mm
Interior Diameter: 69 mm
Interior Diameter Center Housing: 12 mm
Exterior Diameter Center Housing: 18 mm
Thickness (exterior): 11 mm
Thickness (interior): 6 mm
Diameter of the Shaft largest to the narrowest:
26 mm
20 mm
18 mm
15 mm
OEM Replaced SKUs
106857-R00- Sold Each
SKU# RMS900-106857
Fits:
Type | Make | Model | Submodel | From | To | OEM |
---|---|---|---|---|---|---|
Motorcycle | Yamaha | FZ1 1000 | 2006 | 2014 | 106857-R00 | |
Motorcycle | Yamaha | FZ1-N Fazer 1000 | 2006 | 2014 | 106857-R00 | |
Motorcycle | Yamaha | FZ8 800 | 2011 | 2012 | 106857-R00 | |
Motorcycle | Yamaha | FZ8-N Fazer 800 | 2011 | 2012 | 106857-R00 | |
Motorcycle | Yamaha | YZF R1 1000 | 2007 | 2008 | 106857-R00 |