For Weichai Engine EGR Valve Exhaust Gas Return Assembly Recirculation Valve 1007695773. The EGR valve is a key part of your vehicle’s emissions control system. It works by recirculating a portion of the exhaust gas back into the engine’s intake manifold. EGR Valve is a reliable and durable replacement part that ensures your engine runs smoothly and efficiently. When it comes to maintaining the performance and efficiency of your vehicle, one of the most critical components to keep in top condition is the Exhaust Gas Recirculation (EGR) Valve., Manufacturer: HUIXINQ