There are 32 choices

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SUBURBAN 1500
- 100 amp
  - diesel
  - gasoline
    - 11 o'clock position
    - 5 o'clock position
- 105 amp
- 120 amp
- 124 amp
- 165 amp
- 66 amp (diesel)
- 74 amp
- 78 amp
  - diesel
  - gasoline
- 85 amp
  - diesel
  - gasoline
- 94 amp
SUBURBAN 2500
- 100 amp
  - diesel
  - gasoline
    - 8 Cyl, 454 cid (7.4L)
    - Without 8 Cyl, 454 cid
      - 11 o'clock position
      - 5 o'clock position
- 105 amp
  - 8 Cyl, 454 cid (7.4L)
  - Without 8 Cyl, 454 cid
- 120 amp
  - 8 Cyl, 350 cid (5.7L)
  - 8 Cyl, 454 cid (7.4L)
- 124 amp
- 165 amp
- 66 amp (diesel)
- 74 amp
- 78 amp
  - diesel
  - gasoline
- 85 amp
  - diesel
  - gasoline
    - 8 Cyl, 454 cid (7.4L)
    - Without 8 Cyl, 454 cid
- 94 amp

Alternator for 1990 GMC Suburban

Fits: SUBURBAN 2500 85 amp gasoline Without 8 Cyl, 454 cid (change)

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