Delco solenoid for 37MT with specifications: 12 Volt, 4-Terminal, Battery Terminal 1/2-13 x 38mm, Motor Terminal 1/2-13 (W/1/4-20 internal threads), Switch Terminal 10-32 post (RH), Ground Terminal 10-32 post (LH), Replaces DELCO 1115618, D923A. Reference 6640-210, 66-127. Used in Lesster 6295, 6296, 6394, 6399, 6400, 6464, 6504, 6545.