Starter Solenoid For Ford Tractors – Fits 3900, 4000, 4100, 4600, 5000, 5600, 6600, 7600, 7700

If your Ford tractor is clicking but not turning over, you probably need a new starter solenoid.

This one’s a solid replacement that fits a whole bunch of models: 3900, 4000, 4100, 4600, 5000, 5600, 6600, 7600, and 7700.

It’s a universal fit for those Ford applications, so no guesswork.

The part number is D7NN11390B, and it comes from Reliable Aftermarket Parts—they kinda say it in the name, right?

It’s brand new, still in the packaging, just one solenoid ready to bolt on.

No need to mess around with sketchy wiring or old worn-out parts.

Pop this in, and you should be back to plowing or bush hogging in no time.

Simple fix, gets the job done without any drama.