Delco solenoid for 37MT with specifications: 12 Volt, 3-Terminal, Battery Terminal 3/8-16, Motor Terminal 10-32, Switch Terminal Right Hand, Grounded Base. Replaces DELCO 1115589. Reference 6640-205, 66-104. Used in Lester 6204, 6205, 6206, 6282, 6289, 6290, 6353, 6387, 6391, 6392, 6462.