What is the Difference Between 3 and 4 Terminal Solenoids
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Question:
what is the difference between a solenoid that has 1 small terminal in the front from 2 terminals.the on for my 52 dodge had one and i bought one that has 2.should i switch it ?
asked by: Daniel
0
Expert Reply:
A solenoid that has 3 terminals total such as # PK5231201 grounds through the mounting hardware so it must be attached to a clean and corrosion free bare metal surface (if not otherwise internally grounded). A 4 terminal solenoid such as # PK5230701 requires a separate ground wire. You could use either style provided it is rated properly for your application.
expert reply by:
Michael H
0
Product Page this Question was Asked From
Starter Solenoid - SPST - 12 Volt - 100 Amp - Continuous Duty - Insulated - UL Listed
- Accessories and Parts
- Battery Boxes
- Switches and Solenoids
- 100 Amp
- Pollak
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D
5/2/2025
Some 4 post solenoids use where they mount as you described a 3 post. The extra small post gets power when solenoid is energized, sending power to the starter and the extra small post.