This WG9000360134 relay valve is a key pneumatic control part for the brake system of Sinotruk HOWO and Steyr heavy trucks. It quickly delivers high-pressure air to the rear wheel brakes, significantly shortening the braking lag and making the whole vehicle braking more sensitive and consistent.
Made with high-quality alloy body and durable rubber seals, it features excellent air tightness, stable pressure output, shock resistance and long service life. It works reliably in dusty, humid and harsh road conditions.
Manufactured to OEM standards, it has standard air ports and mounting holes for direct replacement without modification. It effectively solves problems such as slow braking, asynchronous braking and air leakage.
It is an ideal replacement part for truck repair shops, fleet maintenance and global heavy truck brake parts wholesalers.
