Rustyred 63 #1 Posted January 29, 2018 Hi folks, I have rebuilt my 1979 C-81, and with the electrical system not working, I have been advised that the most likely issue is the solenoid being faulty. I want to replace it with a new one. According to the parts manual, the solenoid I need is part number 8658. Does anyone know what part number I need to order if getting this selenoid from Napa? Your assistance is appreciated, Rustyred Share this post Link to post Share on other sites
oldredrider 2,553 #2 Posted January 29, 2018 Go to any parts store and tell them you need a solenoid for a 1980 Ford truck. Very heavy duty and will probably be the last one you'll ever buy. Fits perfectly too. 2 Share this post Link to post Share on other sites
squonk 42,572 #3 Posted January 29, 2018 Make sure you get the correct # of terminals or take a picture of the wires on your old one. Some Ford applications have a 4 post solenoid and some 3 Share this post Link to post Share on other sites
pfrederi 18,334 #4 Posted January 29, 2018 (edited) Big Box stores (Lowes, Home Depot) usually have solenoids. They are pretty generic. Only thing, sometimes it may have 2 small terminals instead of 1. It will still work you only use one. (Usually stamped S or +) The other maybe marked I you don not use that one, Edited January 29, 2018 by pfrederi Share this post Link to post Share on other sites
Howie 899 #5 Posted January 30, 2018 Some of those solenoids with the two terminals the second one is the ground. They are not grounded thru the mounting plate. Just a little more info to consider. 3 Share this post Link to post Share on other sites
Rustyred 63 #6 Posted January 30, 2018 All helpful input. Thanks. Share this post Link to post Share on other sites
