Compatible with Honda XL125L/XR125L/XR150L 4-pin voltage regulator rectifier, motorcycle charging system accessory with original factory code 31600-KRH-781.

【Specifically Designed for Honda Models】 This 4-pin voltage regulator/rectifier is compatible with the Honda XL125L, XR125L, and XR150L models and corresponds to the original part number 31600-KRH-781. It was manufactured to the exact specifications of the original vehicle electrical system and ensures perfect compatibility with the ignition system (usually single-phase or DC) and the vehicle battery. It is the ideal solution for replacing damaged or worn original parts and restoring proper charging. Precise Voltage Regulation with 4-Pin Interface: Specifically designed for the charging systems commonly used in these models, this component performs its main functions via a 4-pin interface: Voltage Regulation: Its primary function is to stabilize the output voltage. This prevents voltage spikes due to fluctuations in engine speed and protects the battery and all electrical vehicle components (headlights, instruments, etc.) from overvoltage damage. It does not perform rectification (this is usually handled internally by the ignition system); it serves solely for voltage regulation. Protection function: Excess electrical energy is converted into heat and dissipated by the internal circuitry. This ensures that the system voltage remains within a safe range (typically between 13.5V and 14.8V). [Compact and rugged design] Powerful heat dissipation: Metal housing with heat sinks and a compact, modular design for efficient heat dissipation. Environmentally friendly: Shock and moisture resistant, ideal for occasional off-road use and daily commuting. Easy installation: 4-pin connector, compatible with the vehicle's original wiring harness. [Fixes charging system overvoltage problems] This regulator addresses the following issues: Frequent failure of headlights, taillights, etc. (most common symptom); excessive discharge, swelling, or damage to the battery electrolyte (due to sustained overvoltage); malfunction or damage to instruments or other electronic equipment; Unusual headlight brightness (due to overvoltage).