Howdy folks. I need to find a wiring pigtail for a 1978 F250 with a 4.9L/300 inline six. This pigtail (or harness?) is the one that connects to the ignition coil and the oil sending switch. How could I go about finding that specific unit?

Thanks!

 

D7TZ-14289-M .. Engine Gauge Feed Wiring Harness / Obsolete

1977/79 F100/350 300 I-6 // No Ford dealer or obsolete parts vendor has any.

 

Rats! Any chance Summit or NPD or someone makes an aftermarket unit I could buy? I don't need the whole wiring harness kit - just this specific harness.

Thanks a million for this info!!!!!

 

More specifically, is there some place I can find a male 3-pin pigtail connector? Like the one shown here:

 

You looking to make something custom, or just replace the one at the distributor?
The connector you pictured at the distributor is readily available at any parts store, but the catch is that it comes as part of the pickup coil/stator "kit" for fixing an old tired distributor.
They're still relatively inexpensive however, so if yours is old and tired, it would be better to get the whole thing anyway. I would not want to have to make the connections there personally.

Paul

 

Or were you talking about the chassis-side of the harness only?
That's what I gathered from your first question, but thought the male end of that was on the distributor side?

Paul

 

In recent years it seems that Broncograveyard has gone to the trouble to make the individual under-hood harnesses for some rigs. But lately they've been discontinuing them. Limited runs apparently.
I looked for yours and didn't see one on their site. But you might call them in case they ever made one and might have any laying around.
Chances are pretty slim I would imagine, as most companies wouldn't remove them from the website until the last one was gone. But it never hurts to ask.

What's up with yours? It's actually a pretty simple harness obviously, and some of the ends are available to purchase separately. Then you could make your own interface at the firewall. If there is enough wire to work with you could convert the factory plastic/rubber connectors with some Weatherpack style connectors.
When I did that on my '71 there was only a short bit of wire coming out the firewall, so instead of making a new connector, I used an old buss-bar as an interface. You know, the old parts store/Radio Shack style with the black base and the stainless screw hold downs.
Used ring terminals and forked terminals that were easy to crimp and solder on a short bit of wire on one side, then something similar on the engine side as well. This was simply to replace a deteriorated firewall plug, rather than replacing the wires and connectors on the engine. But it worked great for many years, so the concept could work in your case too in a pinch.

Good luck.

Paul

 

Hey Paul - thanks for the info. I'm talking about the connector shown in the picture that attaches to the end of the wires coming from the distributor. I'm tempted to replace the distributor, but it seemed like it was working fine when I started taking everything apart. I'm trying not to replace too many things that aren't broken. I'm amenable to just finding a new connector and re-wiring both ends, but was hoping it would be easy enough to just find the one that broke. I'll give JBG a try!

 

Good luck. Hoping they have something laying around for you.
But most companies consider the ignition wiring as a separate entity, even though on top of the engine they often share the same taped branch of the harness.

Since the "Duraspark type" connectors (but really after a certain year they were used on more than just ignition stuff) are so good they usually break apart when trying to separate them, I've replaced several of them with now-standard Weatherpack stuff. Much easier to repeat services without destroying half the connector.
I've done it to distributors, neutral-safety switches, and a few other harness connections. The downside is that you have to do it again when you buy a whole new component, but it's really not that big of a deal unless you're stuck buying something out in the middle of nowheres-ville.
Then again, that usually is not a problem for me either since I typically carry enough electrical tools when I'm traveling to get through those issues.

Good luck.

Paul