The parking heater oil pump is equipped with a highly wear-resistant ceramic valve core and a fully enclosed leak proof housing, which increases the operating life by 60% compared to ordinary metal gear oil pumps. The working noise can be as low as 30 decibels, and it will not interfere with the normal rest of passengers in the car. It comes with overcurrent protection and self recovery function for locked rotor. The oil circuit has strong anti impurity ability, and the daily maintenance cost is extremely low. It supports 12V/24V wide voltage input and is compatible with most commercial vehicle electrical systems. Installation and wiring do not require changes to the original vehicle oil circuit structure. It is compatible with more than 98% of mainstream brand parking heaters on the market and is a highly reliable and preferred component for upgrading and replacing parking heating equipment and installing new equipment.