Features: The EGR valve can make the vehicle easier to start, improve throttle response time, and make it run smoother. For Weichai Engine 612600116337 EGR Valve This product is made of lightweight high-strength material with rust-proof surface and is durable and will not fade. It improves overall engine efficiency, resulting in a more stable idle, better fuel efficiency, and reduced oil pollution. Recommendation: EGR is a critical anti-pollution device, and replacement of the EGR system is recommended by an automotive professional., Manufacturer: SIFUSM