2PCS 0445120389 Fuel Injector Nozzle For WEICHAI Fuel injectors react quickly to throttle input, providing instant power and increasing vehicle responsiveness. A damaged fuel injector can cause problems such as difficulty starting car, engine fault light on, severe engine vibration, fuel consumption, and unqualified exhaust. Our fuel injectors will help solve above problems and make engine work properly. We recommend professional installation and suggest that you check other parts of the engine before installation and tune the engine after installation is complete., Manufacturer: XYSZQJZYP