New Motorcycle Accessories Assembly Replacement Aluminum Voltage Rectifier Regulator Fit For HONDA TRX400EX 1999 2000 2001 2002 2003 2004 More than 90% power conversion efficiency Built-in over/under voltage input, overload, overhead, and short circuit full protection 1 Piece x Voltage Regulator Rectifier Rectifier/Voltage regulator is Prevents over charging battery and improve High-quality cost effective replacement for OEM parts