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SIERRA 1500 PICKUP
- Diesel Control
  - (beside 12v battery)
    - (glow plug control)
- Electronic Control Module
  - (left hand front engine compartment)
    - 2.7L
    - 3.0L
    - 4.3L
    - 5.3L
      - ID 12711852
      - ID 12711867
    - 6.2L
      - ID 12711852
      - ID 12711867
SIERRA DENALI 1500
- Electronic Control Module
  - (left hand front engine compartment)
    - diesel
    - gasoline
      - ID 12711852
      - ID 12711867

Engine Computer for 2021 GMC Sierra 1500 HD

Fits: SIERRA 1500 PICKUP Diesel Control beside 12v battery glow plug control (change)

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