Service Note: The relay listed by most parts vendors will not fit the OE socket. We do not know the correct part number but it is possible to hard wire the replacement one.
For those of you looking for replacements for the hard to find and costly Marchal fog lamps, go to your local GM dealership and ask for part number 998528. It's a complete kit, i.e. 2 lights, 2 lens covers, mounting hardware and all the wiring. Only slightly different than the ones on the Eagles. The lens covers included are the white covers with the marchal cat, flag and "S.E.V. Marchal" on them. I have been told that these were options on some of the 3rd gen camaros and were used on the '79 Pace Car Corvette.
Here's your OFFICIAL interchange:
1984 through 1992 Dodge DAYTONA, CHARGER, ARIES
1984 through 1992 Chrysler LEBARON, RELIANT, MOST K-CAR
1981 through 1986 Ford MUSTANG, possibly ESCORT
1980 through 1990 Fiat MOST MODELS
1977 through 1992 Lancia MOST MODELS
1979 through 1987 Peugot SOME MODELS
These all use SIMILAR or IDENTICAL SEV Marchal foglights. They MAY have differing part numbers. Best ID is measuring and checking wires. COLORS WILL DIFFER!!