I've lumped cowl tag version 3 and 4 together since the codes are similar. BUT, I have a LOOONG way to go to interpret these tags.
PLEASE, if you own a 1957 DeSoto Explorer or Shopper wagon, consider sending me the info from your cowl tag, and info about your car, so I may improve the accuracy of this page!) By the way, for those who don't know, the Shopper is the two-seat wagon, and the Explorer is a three seat wagon. Both were available as Fireflite and Firesweep versions, but NOT in the Firedome series.
LET'S GET TO THE GOOD STUFF!!
Here's the cowl tag of this 1957 DeSoto style. I have never seen this on other than Firesweeps:
FOR THIS COWL TAG, there are only a few "words" to interpret.
These are the Firesweep 4-dr sedan
codes:
504 Blue cloth/vinyl
505 Green cloth/vinyl
506 Black/silver
cloth-vinyl
551 "Special" Blue cloth/vinyl
552 "Special" Green cloth/vinyl
553 "Special" Tan cloth/vinyl
583 "Special" Beige and Charcoal cloth/vinyl
These are the Firesweep Sportsman
codes:
Note that for a Firesweep wagon, my resources show that only a 626, black & gold vinyl, was available. However, I have seen at least one Firesweep "wagon" (converted to an ambulance) with the TRIM CODE of 551. This actually makes sense, however, since ambulances and hearses were converted from sedans, not from wagons.
506 Black/silver
cloth-vinyl(may have been available)
514 Blue "Nugget Tweed" cloth/vinyl
515 Green "Nugget Tweed" cloth/vinyl
516 Black and Silver "Nugget Tweed" cloth/vinyl
561 "Special" Blue cloth/vinyl
562 "Special" Green cloth/vinyl
563 "Special" Beige and gray cloth/vinyl
564 "Special" Gray and red cloth/vinyl
626 Black/gold
vinyl (station wagon only)
Here are samples of the "Nugget Tweed" cloth and the vinyl material. Click to enlarge.
Here's another style cowl tag for a 1957 DeSoto. I have never seen this type except on Fireflite wagons:
FOR THIS COWL TAG, there are also only a few "words" to interpret.
The double rows of small numbers below the first row identified above are to be read from top to bottom. If a third and usually larger number is printed in a vertical column, the car was produced with that option code item. If, for example, the first row has a 3, and under the 3 on the next row is a 4, and under the 4 is a 5, then option 345 (power brakes) came on your car.
Here are the options I believe apply AT LEAST ON THE FIREFLITE (I'm not so sure on the Firesweep):
NOTE THAT THESE CODES ARE THE CHRYSLER CODES AND ARE DIFFERENT FROM THE REGULAR DESOTO CODES! I believe them to be correct, however, for the Fireflite wagons since they match up with the codes and options on the cars for which I have records. I don't have much information on Firesweep wagons, but they MAY follow the regular DeSoto codes and not the Chrysler codes above. IF ANY OF YOU KNOW THE MEANING OF ANY OTHER CODES, PLEASE EMAIL ME!!!
Again, If you own a 1957 Desoto wagon and can send me your car information and
the cowl tag codes, I'll try to piece this all together!