How to tell if Casco or Rochester cigarette lighter assembly

El Corvino

Pro Stocker
Dec 15, 2007
1,472
0
0
South Florida
I bought my dad a low mile, all original 1986 El Camino. Only issue was the missing cigarette lighter knob/element and that the housing was used. I'm on a mission to buy him the entire set up NOS... but I'm a bit stuck. How do I know if the vehicle came with a Rochester or Casco set up? From what I've read, the NOS Cigarette lighter knob and element by Rochester will not work with a Casco housing.

Some part numbers I've found... Rochester lighter knob and element: 197507 -- No interest in the 193663 Dealer Replacement
Casco lighter knob and element: ???

Rochester Housing: ???
Casco Housing: ???

Rochester Retainer: ???
Casco Retainer: 193661

Any assistance would be greatly appreciated!
 

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