Looking for 1974 Plymouth Duster wiring diagram

And none of those are from Chrysler Corp.
The best diagrams are going to be in the factory service manual.
For '74 you'll have to buy a copy. I don't know of any place that has them as a download.
You'll have to buy either print copy or on a CD.
I would think Bishko is your best bet, and I know they will ship overseas.

Depending on what you want to do, a '73 service manual download might get you started.
However keep in mind the stuff 72bluNblu stated is all true. Off the top of my head, I beleive '74 is the first year for the seatbelt interlock. Fortunately you can look up how they work in the Master Technicians Conference.

Also if your Duster has the optional electric defroster grid in the rear window, it would have a different power feed arrangement. Those are shown in the shop manual.

'74 is a disaster is what it is.

1 year only seat belt ignition lock out, and that stupid "delay box" or whatever that's a separate circuit board. I'm not saying they aren't out there, but I have yet to see a wiring diagram fully depict all the stuff that was in the '74 harness. It's basically a 1 year only deal.


Seatbelt interlock.... so that's why I have a "fasten your seatbelt" sign in the dash? LOL. Had no idea. I don't think the unit is there anymore. And my car has no air system whatsoever apart from the forced air on left side.

Thanks all anyway, I'll compare with the Dart one.

I think it's very weird that at this point we still struggle to find basic material such as wiring diagram and decals vector.
I've been making some and putting it available online as much as I can to help others but still couldn't find (or create from scratch) the decals for the 74.