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Porsche 928 VIN decoder, 78-80

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For model/years 78, 79 and 80, the Vehicle Identification Number (VIN) is unique, when for only those 3 years a 10-digit VIN format was used. 

From model/year 81-later, a new 17-digit VIN format was standardized per ISO 3833. 

To get started, it's important to understand a few facts about how 928's were classified. 

  • 928's were separated into types, based on engine spec: Type US and RoW (Rest of World)
    For ease of discussion, Canada is included with Type US and Japan is omitted    .
  • These types were built in parallel to each other, meaning their serial number sequences were independently separate. Porsche 928 serial vs. production numbers here.
  • Each type started at serial number (S/N) 0011. Porsche documentation reads S/N 0000, which has been confirmed as incorrect.
porsche 928 vin decoder chassis stamp

To find the VIN on any 928, there are 4 primary places to look.

  • Left-side door jamb near door latch, adhesive applied label (Type US)
  • Left-side A-pillar under windshield, stamped plate (Type US)
  • Front-side under hood near where hood latches, stamped plate riveted to chassis (Type RoW)
  • Right-side inner fender wall, stamped into chassis (All Types)

For thorough VIN verification, I recommended using the VIN plate on the inner fender wall.
It's the only permanent VIN located on ALL 928's

VIN Decode, MY78-79

Digit

  1. 9 - Model Designation
  2. 2 - Model Designation
  3. 8 - Model Designation
  4. 8 - 1978, 9 -1979
  5. 1 - Type RoW, 2 - Type US
  6. 0 - Coupe Designation
  7. 1 - Serial Number
  8. 2 - Serial Number
  9. 3 - Serial Number
  10. 4 - Serial Number

VIN Decode, MY80

Digit

  1. 9 - Model Designation
  2. 2 - Model Designation
  3. A - 1980
  4. 0 - Producer Code (Porsche)
  5. 8 - Model Designation
  6. 0 - Type RoW, 1 - Type US, 2 - Type RoW (S model)
  7. 1 - Serial Number
  8. 2 - Serial Number
  9. 3 - Serial Number
  10. 4 - Serial Number