WESPC Original BX50W Diesel Engine Control Panel Unit Engine Spare Parts Model Number BX50W Product Name control box Warranty 1year Stock Yes Packing Carton Color Black Summary Engine Control Box BX50W is one multi-functional meter box which can replace the traditional mechanical meter box.It is mainly used in water pump driven by diesel engine. GM50W is a lightweight and affordable multi-function instrumentused to measure and display engine speed, water temperature,