General description This Ignition Coil Solenoid Relay Voltage Regulator 5 Pin CDI Box Spark Plug is designed for 50cc to 125cc horizontal engines, making it an ideal choice for various ATVs, karts, dirt bikes, and pit bikes. It includes essential components for optimal engine performance. Technical specifications Includes: ignition coil, 5-pin CDI module, 4-pin voltage regulator rectifier, electromagnetic relay, 3-pin spark plug Compatible with: 50cc, 70cc, 90cc, 110cc, 125cc horizontal engines Voltage: 12V Compatibility and accessories Not suitable for GY6 or CG engines Compatible with various brands including TaoTao, Sunl, Jonway, Roketa, Baja, Kazuma, and kinroad