There are 8 choices

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SIERRA DENALI 1500
- Electronic Control Module
  - (left hand front engine compartment)
SIERRA DENALI 2500
- Diesel Control
  - (Passenger Side cylinder head)
    - (glow plug control)
- Electronic Control Module
  - (left hand front engine compartment)
    - 6.0L
    - 6.6L
      - ID 12711509
      - ID 12726761
SIERRA DENALI 3500
- Diesel Control
  - (Passenger Side cylinder head)
    - (glow plug control)
- Electronic Control Module
  - (left hand front engine compartment)
    - 6.0L
    - 6.6L

Engine Computer for 2019 GMC Sierra Denali

Fits: SIERRA DENALI 2500 Electronic Control Module left hand front engine compartment 6.6L ID 12726761 (change)

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