are spark plug wires interchangeable with other years and models of the car. on 1991 Audi 90

I need one wire for my Audi 90 and I can't buy a set. It the core wire.

Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
2 answers
Your local parts store should have a breakdown of what is required for each wire in a set or take old one in and they can match.
Look at www.rockauto.com ,they usually have good images of parts, see if the part number crosses over to any other car.