Aftermarket 9-866, Solenoid Delco 24V, 4 - Terminal, Intermittant Duty, 3 lbs. LENGTH BTW MTG HOLES: 3-1/8 TERMINAL BATTERY: 3/8-16 TERMINAL GROUND: 10-32 POST TERMINAL MOTOR: 3/8-16 TERMINAL SWITCH: 10-32. Powered by SixBit's eCommerce Solution.