Product Line — Charging
Aftermarket Voltage Regulator / Rectifiers
Matched voltage regulator rectifiers and MOSFET upgrades, engineered as the stator's failure partner — replacing both together is how the best repair shops work.
Applications
Platforms & fitment
- BMW water-cooled R series
- Harley-Davidson Sportster / Twin Cam
- Yamaha motorcycles
- Sea-Doo personal watercraft
- Yamaha / Mercury outboards
Why This Line
Built for the aftermarket
MOSFET options
MOSFET regulation runs cooler and holds voltage tighter than stock shunt units — the upgrade repair shops ask for by name.
Heat-optimized design
Fin geometry and full epoxy potting sized for high-ambient, high-RPM duty cycles.
100% load testing
Regulation and load behavior checked on every unit before packing — not a sampling plan.
Specs
Specifications
| Topology | Shunt / MOSFET options |
|---|---|
| Potting | Full epoxy |
| Testing | 100% load & regulation |
| Connectors | OEM-style, direct fit |
OEM Cross-Reference
Direct Replacement for These OEM Part Numbers
Our stators and regulators are engineered as plug-and-play replacements for the OEM part numbers below. Match the number on your original unit — if yours is not listed, send it to us and we will confirm the fit.
| Brand | Application | Replaces OEM No. | Notes |
|---|---|---|---|
| Yamaha | FJR1300 / YZF-R1 / FZ1 (2006–2020) | 1D7-81960-00 / 1D7-81960-01 / 5VY-81960-00 | MOSFET upgrade available |
| Honda | CBR500R / CB500F / CB500X (2013–2018) | 31600-MGZ-J01 | MOSFET upgrade available |
| Kawasaki | Ninja / Z series (multi-fit) | 21066-0008 | MOSFET upgrade available |
| Honda | NXR150 Bros / CG150 Titan / Biz125 (2009–2015) | 31600-KSS-B31 | |
| Harley-Davidson | Touring / Dyna / Softail (2009–2016) | 74505-09 / 74505-09A | |
| Shindengen | Universal MOSFET upgrade (multi-brand) | FH012AA / FH020AA / SH775 | Replaces older shunt-type units |
Cross-reference is provided for fitment guidance only. Always verify against the OEM number on your original part before ordering.
FAQ