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G.M., B78


Quantity Discounts

1 to 4$3.72
5 to 9$1.86
10 to 49$0.93
50 or more$0.74
  • Buick
    • Regal, 1991-1993
  • Chevy, Chevrolet
    • Lumina, 1991-1993
  • Oldsmobile
    • Cutlass, 1991-1993
    • Cutlass Supreme, 1991-1993
  • Pontiac
    • Grand Prix, 1991-1993


  • Applications shown above are to be used as a guide only.
  • Although the applications shown above will fit those that are listed, there may be similar models that use different key blanks.
    • To ensure you buy the correct key blank, we strongly recommend comparing groove patterns of your current key against the image shown above.
    • The head of your key may vary from what is shown.
  • Consult Find Your Vehicle Keys Here for additional applications.
    It can be found in the Upper Right Hand Corner of every page.

Manufacturer Info

  • This key blank is made by Ilco.
  • Various key blank manufacturers may call this key by a different part number.  
    Some examples are:
    • Cole B78
    • Curtis B-78, B78
    • ESP B78-E, B78E
    • Ilco P1098WE
    • Ilco EZ B78
    • Jet B78
    • JMA GM-20, GM20
    • Orion GMEW
    • Silca GM27R
    • Strattec 322050


  • Most General Motors brand keys have a small letter where the shaft meets the bow. 
    If your key has an E on it, and the same groove pattern as shown above, choose this key.

  • Different groove pattern on both sides.
  • Nickel plated brass.
  • Can be cut using a standard key machine. 
  • Actual size line drawings and groove pattern profiles are available in our manufactures directory.  To view these pdf files, please read and follow the instructions below.
    • Learn how to Check the Profile.  
    • Using the link above, you will find this key in the Vehicle section under General Motors.

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