8V5172 Brake Pedal Valve A Fits Caterpillar Fits CATOne New Aftermarket Valve A for Brake Pedal That Fits The Following Fits Caterpillar Equipment. Track Type Tractor D9G, D9H Wheel Tractor Scraper 627B, 621E, 650B 651B, 621S, 627, 623E, 657, 651, 631D, 641B, 631E, 621B, 641, 657B, 637E, 631C, 637D, 633C, 660B, 637, 666B, 623B, 623, 621, 633D Integrated ToolCarrier IT18B, IT28, IT18, IT28B Wheel Type Loader 926E, 930, 936, 966E, 950B, 936E, 950E, 950F II 966F, 966D, G916, 920, 926, 950, 980B, 966C,