2020 GMC Sierra 3500 HD Transmissions

Used and remanufactured transmissions that fit the 2020 GMC Sierra 3500 HD. Each unit below is matched to this vehicle, warranty-backed, and shipped with freight quoted at checkout from Expedia Parts.

Available Transmissions (8)

  • Remanufactured Transmission

    Price
    $3,499.00
    Engine:
    6.6L
    Condition:
    remanufactured

  • Remanufactured Transmission

    Price
    $3,599.00
    Engine:
    6.6L
    Condition:
    remanufactured

  • OE + 6L90 Remanufactured Automatic Transmission

    Price
    $0.00
    Engine:
    6.6L
    Condition:
    remanufactured

  • OE + 6L90 Remanufactured Automatic Transmission

    Price
    $0.00
    Engine:
    6.6L
    Condition:
    remanufactured

  • 6L90 Remanufactured Automatic Transmission

    Price
    $0.00
    Engine:
    6.6L
    Condition:
    remanufactured

  • 6L90 Remanufactured Automatic Transmission

    Price
    $0.00
    Engine:
    6.6L
    Condition:
    remanufactured

  • 6L90 Remanufactured Automatic Transmission

    Price
    $0.00
    Engine:
    6.6L
    Condition:
    remanufactured

  • 6L90 Remanufactured Automatic Transmission

    Price
    $0.00
    Engine:
    6.6L
    Condition:
    remanufactured

Other GMC Sierra 3500 HD Years

2020 GMC Sierra 3500 HD Transmission Market Context

Is replacing the transmission worth it?

Vehicle value (full-size truck):
$14,935 – $19,009
Repair makes sense under:
≈$7,637

Rule of thumb: a transmission replacement is usually worth it when the installed cost stays under 45% of what the 2020 GMC Sierra 3500 HD is worth — most units below beat that comfortably.