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diesel
- 8 Cyl, 363 cid (6.0L, VIN P, 8th digit)
  - dual alternator
    - 120 amp
      - ID 3C3T-10300-CA
      - ID 3C3T-10300-CB
    - 140 amp
  - single alternator
- 8 Cyl, 445 cid (7.3L, VIN F, 8th digit)
  - dual alternator
    - bottom alternator
      - (ID 2C3U-10300-CB)
    - top alternator
      - ID 2C3U-10300-BA
      - ID 2C3U-10300-BB
  - single alternator
gasoline
- 110 amp
  - (ID 2C3U-10300-AB)
- 130 amp

Alternator for 2003 Ford F-550 Super Duty

Fits: diesel 8 Cyl, 445 cid 7.3L, VIN F, 8th digit dual alternator top alternator ID 2C3U-10300-BB (change)

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