Rmstator RMS021-108806 MOSFET Voltage Regulator Rectifier Softail Black

The Rmstator RMS021-108806 is a high-performance MOSFET voltage regulator rectifier designed as a direct replacement for Harley-Davidson Softail models. Finished in black, this unit delivers improved charging system reliability over the stock OEM diode-style regulator.

Unlike traditional shunt-type regulators that dissipate excess current as heat, the MOSFET design controls battery voltage by switching the stator coils on and off, significantly reducing operating temperatures and extending the life of both the regulator and the stator.

Key Features:

• MOSFET technology runs cooler than OEM diode-style regulators
• Overheat protection — unit temporarily shuts off to cool down rather than burning out
• Plug-and-play installation — direct OEM replacement with matching connectors
• Black finish for a clean, factory-compatible appearance
• Improved heat sink design for enhanced thermal management
• Higher-grade electrical components for superior durability
• Minimum charging voltage: 14.5V ± 0.5V
• Open circuit voltage: <15V
• Operating temperature range: -20°C to 85°C (-4°F to 185°F)
• Every unit is tested before shipment

The Rmstator RMS021-108806 is an ideal upgrade or replacement for riders experiencing charging system issues on their Softail, delivering factory-fit convenience with aftermarket performance and longevity.