ZF5HP30 Torque Converter, Lock Up ZF5HP30 Automatic Transmission Torque Converter, Lock Up Diameter: 12" Bolt Circle To Bolt Circle: 10.435" Mount: Mount Plate, 4 Captive Nuts, 10mm x 1.5 Hub: Slotted Pilot: Diameter 1.257" Splines: 27 Stall:Medium Codes: B13, F21, R13,... Part #: BMW32 Decrease Quantity: Increase Quantity: