Search Bar
Search by Part Number, Part Name, or Vehicle
  • My Garage
  • Cart
  • OE Parts
  • Body & Mirrors
  • Chassis & Brakes
  • Engine & Drivetrain
  • Electrical & Lighting
Help Center
< Back ×
  • Shop OE Parts
  • Shop By Category
  • Body & Mirrors
  • Chassis & Brakes
  • Engine & Drivetrain
  • Electrical & Lighting

2021 GMC Sierra 3500 HD Air Intake Coupling

My Vehicle Change Vehicle
2021 GMC Sierra 3500 HD
Change Vehicle
Vehicle Options
We need more information about your vehicle to make a correct determination of fitment
< Back to View All
Air Filters & Intake Systems
  • Department
  • Prices

7 Products found

Sort by:
Recommended
Filter Results
Sort
View by
  • OEM 2021 GMC Sierra 3500 HD Outlet Tube Diagram - 84841225
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Outlet Tube

    PartNumber: 84841225
    $106.07 MSRP: $160.03
    You Save: $53.96 (34%)
    Product Specifications
    • Other Names: Outlet Duct, Outlet Tube
    • Fitment Type: Direct Replacement
    • Replaces: 23384622
    • Replaced by: 85013706
    • Part Description: 2021 GMC Sierra 3500 HD Outlet Tube
    More Info
  • OEM 2021 GMC Sierra 3500 HD Intake Duct Diagram - 84575661
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Intake Duct

    PartNumber: 84575661
    $106.07 MSRP: $160.03
    You Save: $53.96 (34%)
    Product Specifications
    • Notes: 6.6 L Gas
    • Other Names: Intake Duct
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD Intake Duct
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
  • OEM 2021 GMC Sierra 3500 HD Intake Duct Diagram - 84670713
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Intake Duct

    PartNumber: 84670713
    $106.07 MSRP: $160.03
    You Save: $53.96 (34%)
    Product Specifications
    • Notes: 6.6 L Diesel, Engine Compartment
    • Other Names: Intake Duct
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD Intake Duct
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, Denali Ultimate, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL
  • OEM 2021 GMC Sierra 3500 HD Air Inlet Duct Diagram - 84684674
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Air Inlet Duct

    PartNumber: 84684674
    $208.84 MSRP: $315.06
    You Save: $106.22 (34%)
    Product Specifications
    • Notes: 6.6 L Diesel, On Hood
    • Other Names: Air Inlet Duct
    • Fitment Type: Direct Replacement
    • Replaces: 84575663
    • Replaced by: 85758234
    • Part Description: 2021 GMC Sierra 3500 HD Air Inlet Duct
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, Denali Ultimate, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL
  • OEM 2021 GMC Sierra 3500 HD Outlet Duct Diagram - 84841228
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Outlet Duct

    PartNumber: 84841228
    $208.84 MSRP: $315.06
    You Save: $106.22 (34%)
    Product Specifications
    • Notes: 6.6 L Gas
    • Other Names: Outlet Duct
    • Fitment Type: Direct Replacement
    • Replaces: 84566416
    • Part Description: 2021 GMC Sierra 3500 HD Outlet Duct
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
  • OEM 2021 GMC Sierra 3500 HD Outlet Duct Diagram - 84841229
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Outlet Duct

    PartNumber: 84841229
    $171.27 MSRP: $258.39
    You Save: $87.12 (34%)
    Product Specifications
    • Other Names: Outlet Duct
    • Fitment Type: Direct Replacement
    • Replaces: 84134710
    • Replaced by: 85070976
    • Part Description: 2021 GMC Sierra 3500 HD Outlet Duct
    More Info
  • OEM 2021 GMC Sierra 3500 HD Rear Duct Diagram - 85126004
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Rear Duct

    PartNumber: 85126004
    $243.09 MSRP: $366.74
    You Save: $123.65 (34%)
    Product Specifications
    • Notes: 6.6 L Diesel, On Hood
    • Other Names: Rear Duct
    • Replaces: 84575662
    • Replaced by: 85758233
    • Part Description: 2021 GMC Sierra 3500 HD Rear Duct
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, Denali Ultimate, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL