Product Details :Select Mack® Applications : Synchronizing Valve (SV-1) (1) 1/8-27 NPT Port, (3) 1/4-18 NPT Ports) (Inlet opens at 42 psi... SV-1 SYNCHRONIZING VALVEAir Brake Component Air Valve Control Valve Type SV1 SV-1 SYNCHRONIZING VALVEINTERCHANGES:REPLACES Blue Bird: 1102912REPLACES Wabash National: 12900164REPLACES Automann: 170.282472REPLACES Meritor: 1779P1004REPLACES Mack: 20QE2173REPLACES Bendix: 282472NREPLACES Bendix: 282472XREPLACES General Motors: 718458REPLACES Mack: 745-282472REPLACES Terex: 9012952REPLACES Bendix: BW282472NREPLACES Tectran: TV282472 World American AIR SYSTEM | BRAKE VALVE-EXCO HD PARTS Third Function Valve Kit SV-1 Synch3onizing Valve | Bendix 278825N - A-1 Tuck Pats Sv1 Valve Manual The front bumper compatible with Traxxas TRX-4 TRX4 Axial SCX10 SCX10II 90046 90047 1/10 RC crawler car Made of high quality metal,durable and sturdy,it can ensure use them for a long time