2021 GMC Sierra 2500 HD Ignition System

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2021 GMC Sierra 2500 HD
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2 diagrams found for the vehicle you selected.Select your vehicle options to narrow down results.
  • 1.Electrical - Ignition System (Diesel)
    2021 GMC Sierra 2500 HD Ignition System Diagram 1 - Thumbnail
  • 2.Electrical - Ignition System (Gas)
    2021 GMC Sierra 2500 HD Ignition System Diagram 2 - Thumbnail
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Part No. & Part Description
Price & Qty.
Part No. &
Part Description
  • 1 GMC 12720006 ECM
    12720006
    ECM
    Module Assembly-Engine Control (W/2ND Mpu)
    • Part Notes: 6.6 Liter Diesel
    MSRP: $878.22 Your Price: $467.65
    1
    Add To Cart
  • 1 GMC 12708496 Ignition Coil
    12708496
    Ignition Coil
    Coil Assembly-Ignition
    • Part Notes: 6.6 Liter Gas, AC Delco
    • Replaced By: 12726023
    MSRP: $165.53 Your Price: $78.58
    1
    Add To Cart
  • 1 GMC 12713668 Ignition Coil
    12713668
    Ignition Coil
    Coil Assembly-Ignition
    • Part Notes: 6.6 Liter Gas, Melco
    • Replaced By: 12723610
    MSRP: $57.64 Your Price: $30.69
    1
    Add To Cart
  • 2
    12636947
    Camshaft Sensor
    Sensor, Distributor (Also Knock Sensor)
    • Part Notes: 6.6 Liter Diesel
    MSRP: $42.68 Your Price: $22.73
    1
    Add To Cart
  • 2
    12622441
    Spark Plug
    Spark Plug Assembly
    • Part Notes: 6.6 Liter Gas
    MSRP: $17.32 Your Price: $9.70
    1
    Add To Cart
  • 3 GMC 12641040 Crankshaft Sensor
    12641040
    Crankshaft Sensor
    Sensor Assembly-Crankshaft Position
    • Part Notes: 6.6 Liter Diesel
    MSRP: $42.42 Your Price: $22.59
    1
    Add To Cart
  • 3 GMC 12716289 Plug Wire
    12716289
    Plug Wire
    Wire Assembly-Spark Plug
    • Part Notes: 6.6 Liter Gas
    MSRP: $33.75 Your Price: $17.97
    1
    Add To Cart
  • 4 GMC 12725133 ECM
    12725133
    ECM
    Module Assembly-Engine Control (W/O Calibration)
    • Part Notes: 6.6 Liter Gas
    MSRP: $461.73 Your Price: $280.30
    1
    Add To Cart
  • 5 GMC 84405851 Mount Bracket
    84405851
    Mount Bracket
    Bracket Assembly-ECM
    • Part Notes: 6.6 Liter Gas
    • Replaced By: 87814257
    MSRP: $80.36 Your Price: $48.80
    1
    Add To Cart
  • 6
    12623093
    Camshaft Sensor
    Sensor, Distributor (Also Knock Sensor)
    • Part Notes: 6.6 Liter Gas
    MSRP: $36.04 Your Price: $19.19
    1
    Add To Cart
  • 7 GMC 12712016 Wire
    12712016
    Wire
    Wire, Engine Wiring
    • Part Notes: 6.6 Liter Gas
    • Replaced By: 12734111
    MSRP: $92.18 Your Price: $58.86
    1
    Add To Cart
  • 8
    12669636
    Crankshaft Sensor
    Sensor Assembly-Crankshaft Position
    • Part Notes: 6.6 Liter Gas
    MSRP: $55.66 Your Price: $29.64
    1
    Add To Cart
  • 9
    12623095
    Knock Sensor
    Sensor, Distributor (Also Knock Sensor)
    • Part Notes: 6.6 Liter Gas
    MSRP: $46.08 Your Price: $24.54
    1
    Add To Cart
  • GMC 12725202 Glow Plug
    12725202
    Glow Plug
    Glow Plug Assembly-Diesel Engine Combustion Air Heatr
    • Part Notes: 6.6 Liter Diesel
    MSRP: $47.38 Your Price: $26.53
    1
    Add To Cart