Electrical Starter solenoid out of space?

387lx

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Jan 22, 2026
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I’m finishing up my car and trying to rewire my new mini starter. I know the main power cable should run from the battery side of the solenoid to the starter, with the smaller trigger wire on the other side of the solenoid. The problem is I’m out of room on the battery side of the solenoid.

Right now, I have the starter wired on the right side of the solenoid with a jumper wire on the starter itself. I know that isn’t the correct setup, so I’m wondering what my options are to wire the starter properly when there’s no room left on the battery side of the solenoid.
Battery is also located In the trunk now. Thanks
 

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I’m finishing up my car and trying to rewire my new mini starter. I know the main power cable should run from the battery side of the solenoid to the starter, with the smaller trigger wire on the other side of the solenoid. The problem is I’m out of room on the battery side of the solenoid.

Right now, I have the starter wired on the right side of the solenoid with a jumper wire on the starter itself. I know that isn’t the correct setup, so I’m wondering what my options are to wire the starter properly when there’s no room left on the battery side of the solenoid.
Battery is also located In the trunk now. Thanks

Welcome to the site!

My suggestion is to install a bus bar to connect 12v accessories. Something like this:



1769146673615.webp
 
Or just wire it directly to the battery. There is nothing different and the starter solenoid on the inner fender provides no protection when wired for a mini starter. Crappy sketch of what I’m talking about:

1769184867530.webp


Battery I run has threaded side posts so this works in my case.

You could also replace the solenoid with one that has longer lugs. I believe the Motorcraft one has the longest lugs and the lugs on the one you have definietly look shorter.

1769187143870.webp


Part number is either SW1951C or E9TZ-11450-B
 
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Or just wire it directly to the battery. There is nothing different and the starter solenoid on the inner fender provides no protection when wired for a mini starter. Crappy sketch of what I’m talking about:

1769184867530.webp


Battery I run has threaded side posts so this works in my case.

You could also replace the solenoid with one that has longer lugs. I believe the Motorcraft one has the longest lugs and the lugs on the one you have definietly look shorter.

1769187143870.webp


Part number is either SW1951C or E9TZ-11450-B
Ok sweet just ordered the motor craft to try out. I wanted to see if there was anything I could do like that so I didn’t have to run the cable all the way to the trunk to the battery
 
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