Compare Maximum number of 4 items selected ACDelco Wheel Cylinder - 18E775 Part #: 18E775 Line: ACD ACDelco Wheel Cylinder 1 Year Limited Warranty Material: Cast Iron Hardware Included: No Bleeder Screw Cap Included: Yes Bleeder Screw Included: Yes Inlet Thread Size (in): 7/16 Inch Inlet Thread Size (mm): M11 Wheel Cylinder Bore (in): 1 Inch Wheel Cylinder Bore (mm): 25mm Show More Show Less