Hot Rod Starter Relay Solenoid 12V 4-Terminal Heavy Duty SW3 For 1956 Up Truck Starters Replaces B-6A-11450A C6AF C7AF C3912 C9AF D2AF11450AA 50-430 Black

Heavy-Duty 12V Starter Relay Solenoid for Classic Trucks
✔️ 12V, 4-terminal, pack 1, copper coil, grounded base

This aftermarket starter solenoid is a rugged 12V replacement designed for classic trucks and 1956-up models. It uses a copper coil, galvanized contact surfaces for durability, and a heat-dissipating gasket to handle engine bay conditions.

✅ 4-terminal design: battery 5/16-24 (7.94 mm), motor 5/16-24 (7.94 mm), switch 10-32 (4.76 mm), relay 10-32 (4.76 mm) with grounded base
✅ 12V operation with copper coil and galvanized contacts for heat resistance and longevity
✅ Replaces SW3, B-6A-11450A, C6AF, C7AF, C3912, C9AF, D2AF11450AA, 50-430
✅ Compatible with AEROSTAR, BRONCO, BOBCAT, MONTCLAIR, MARQUIS and other 1956+ Lincoln Mercury models

💡 What is a starter relay solenoid used for in classic vehicles?

It's a handy component that engages the starter to crank the engine when you turn the key. Here are a few handy points:

• Sealed copper coil handles high current and resists heat
• Galvanized contact surface improves durability against corrosion
• 12V compatible with common OEM setups in older trucks
• Simple swap for SW3 and other listed part numbers