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100 amp
- diesel
  - model VIN C/K (5th digit)
  - model VIN R/V (5th digit)
- gasoline
  - 8 Cyl, 454 cid (7.4L)
    - model VIN C/K (5th digit)
    - model VIN R/V (5th digit)
  - Without 8 Cyl, 454 cid
    - 11 o'clock position
    - 5 o'clock position
    - model VIN C/K (5th digit)
      - 11 o'clock position
      - 5 o'clock position
    - model VIN R/V (5th digit)
105 amp
- diesel
- gasoline
  - 8 Cyl, 454 cid (7.4L)
  - Without 8 Cyl, 454 cid
120 amp
- model VIN C/K (5th digit)
- model VIN R/V (5th digit)
  - 8 Cyl, 454 cid (7.4L)
    - (ID 10479809)
  - Without 8 Cyl, 454 cid
124 amp
- diesel
- gasoline
  - ID 10463199
  - ID 1102641
165 amp
74 amp
85 amp
- diesel
- gasoline
  - 8 Cyl, 454 cid (7.4L)
  - Without 8 Cyl, 454 cid

Alternator for 1991 GMC P3500

Fits: 100 amp gasoline Without 8 Cyl, 454 cid model VIN R/V 5th digit (change)

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