Contact Us Live Chat or 1-888-220-8330
Search Bar
Search by Part Number or Keywords
  • My Garage
  • My Account
  • Cart
  • Body & Mirrors
  • Chassis & Brakes
  • Engine & Drivetrain
  • Electrical & Lighting
Help Center
< Back ×
  • Body & Mirrors
  • Chassis & Brakes
  • Engine & Drivetrain
  • Electrical & Lighting
Login/Register My Account Track Order Help Center Contact Us
Replacement and OEM Parts for 2021 GMC Sierra 3500 HD Tail Lights

2021 GMC Sierra 3500 HD Tail Lights

My Vehicle Change Vehicle
2021 GMC Sierra 3500 HD
Change Vehicle
Vehicle Options
Select Trim
Select Engine
We need more information about your vehicle to make a correct determination of fitment
< Back to View All
Electrical & Lighting

14 products about 2021 GMC Sierra 3500 HD Tail Lights found

Show Item:
  • 30
  • 60
  • 90
Sort by:
Recommended
Filter
Sort
View by
  • OEM 2021 GMC Sierra 3500 HD Tail Lamp Diagram - 84760021
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Tail Lamp

    PartNumber: 84760021
    OEM 2021 GMC Sierra 3500 HD Tail Lamp - 84760021
    Product Specifications
    • Other Names: Tail Lamp
    • Fitment Type: Direct Replacement
    • Replaced by: 85079087
    • Part Description: 2021 GMC Sierra 3500 HD Tail Lamp
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | Base, SLE | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
    $621.97 MSRP: $936.74
    You Save: $314.77 (34%)
  • OEM 2021 GMC Sierra 3500 HD Tail Lamp Diagram - 85161941
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Tail Lamp

    PartNumber: 85161941
    OEM 2021 GMC Sierra 3500 HD Tail Lamp - 85161941
    Product Specifications
    • Other Names: Tail Lamp
    • Replaced by: 85079088
    • Part Description: 2021 GMC Sierra 3500 HD Tail Lamp
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | Base, SLE | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
    $621.97 MSRP: $936.74
    You Save: $314.77 (34%)
  • OEM 2021 GMC Sierra 3500 HD Tail Lamp Diagram - 84831184
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Tail Lamp

    PartNumber: 84831184
    OEM 2021 GMC Sierra 3500 HD Tail Lamp - 84831184
    Product Specifications
    • Other Names: Tail Lamp
    • Fitment Type: Direct Replacement
    • Replaced by: 86584238
    • Part Description: 2021 GMC Sierra 3500 HD Tail Lamp
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Denali, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
    $581.63 MSRP: $875.88
    You Save: $294.25 (34%)
  • OEM 2021 GMC Sierra 3500 HD Tail Lamp Diagram - 84968743
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Tail Lamp

    PartNumber: 84968743
    OEM 2021 GMC Sierra 3500 HD Tail Lamp - 84968743
    Product Specifications
    • Other Names: Tail Lamp
    • Item Dimensions: 23.1 x 14.3 x 11.2 inches
    • Item Weight: 8.90 Pounds
    • Replaced by: 86584239
    • Part Description: 2021 GMC Sierra 3500 HD Tail Lamp
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Denali, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
    $581.63 MSRP: $875.88
    You Save: $294.25 (34%)
  • OEM 2021 GMC Sierra 3500 HD High Mount Lamp Diagram - 84487008
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD High Mount Lamp

    PartNumber: 84487008
    OEM 2021 GMC Sierra 3500 HD High Mount Lamp - 84487008
    Product Specifications
    • Other Names: High Mount Lamp
    • Item Dimensions: 28.1 x 6.8 x 6.6 inches
    • Item Weight: 2.00 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD High Mount Lamp
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
    $192.98 MSRP: $303.51
    You Save: $110.53 (37%)
  • OEM 2021 GMC Sierra 3500 HD High Mount Lamp Diagram - 84699124
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD High Mount Lamp

    PartNumber: 84699124
    OEM 2021 GMC Sierra 3500 HD High Mount Lamp - 84699124
    Product Specifications
    • Notes: Double, Crew Cab, W/Pickup Box Camera, W/O Inside Mirror Display Camera
    • Other Names: High Mount Lamp
    • Item Dimensions: 24.7 x 8.1 x 7.9 inches
    • Item Weight: 1.80 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD High Mount Lamp
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
    $163.05 MSRP: $246.00
    You Save: $82.95 (34%)
  • OEM 2021 GMC Sierra 3500 HD High Mount Lamp Diagram - 84699123
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD High Mount Lamp

    PartNumber: 84699123
    OEM 2021 GMC Sierra 3500 HD High Mount Lamp - 84699123
    Product Specifications
    • Notes: Double, Crew Cab, W/Pickup Box Camera, W/Inside Mirror Display Camera
    • Other Names: High Mount Lamp
    • Item Dimensions: 25.5 x 8.1 x 8.1 inches
    • Item Weight: 2.00 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD High Mount Lamp
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
    $340.74 MSRP: $514.05
    You Save: $173.31 (34%)
  • OEM 2021 GMC Sierra 3500 HD High Mount Lamp Diagram - 84419006
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD High Mount Lamp

    PartNumber: 84419006
    OEM 2021 GMC Sierra 3500 HD High Mount Lamp - 84419006
    Product Specifications
    • Notes: Double, Crew Cab, W/O Pickup Box Camera, W/O Inside Mirror Display Camera
    • Other Names: High Mount Lamp
    • Item Dimensions: 27.3 x 6.6 x 6.8 inches
    • Item Weight: 1.80 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD High Mount Lamp
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
    $86.72 MSRP: $130.84
    You Save: $44.12 (34%)
  • OEM 2021 GMC Sierra 3500 HD Socket & Wire Diagram - 84574263
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Socket & Wire

    PartNumber: 84574263
    OEM 2021 GMC Sierra 3500 HD Socket & Wire - 84574263
    Product Specifications
    • Notes: W/O Led Signature Design
    • Location: Driver Side; Passenger Side
    • Other Names: Socket Wire
    • Item Dimensions: 5.9 x 5.9 x 1.2 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD Socket & Wire
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | Base, SLE | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
    $50.23 MSRP: $80.10
    You Save: $29.87 (38%)
  • OEM 2021 GMC Sierra 3500 HD Socket & Wire Diagram - 84574263
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Socket & Wire

    PartNumber: 84574263
    OEM 2021 GMC Sierra 3500 HD Socket & Wire - 84574263
    Product Specifications
    • Notes: W/O Led Signature Design
    • Location: Driver Side; Passenger Side
    • Other Names: Socket Wire
    • Item Dimensions: 5.9 x 5.9 x 1.2 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD Socket & Wire
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | Base, SLE | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
    $50.23 MSRP: $80.10
    You Save: $29.87 (38%)
  • OEM 2021 GMC Sierra 3500 HD High Mount Lamp Diagram - 84601056
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD High Mount Lamp

    PartNumber: 84601056
    OEM 2021 GMC Sierra 3500 HD High Mount Lamp - 84601056
    Product Specifications
    • Other Names: High Mount Lamp
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD High Mount Lamp
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | Base, SLE | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
    $80.84 MSRP: $121.97
    You Save: $41.13 (34%)
  • OEM 2021 GMC Sierra 3500 HD Socket & Wire Diagram - 84574264
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Socket & Wire

    PartNumber: 84574264
    OEM 2021 GMC Sierra 3500 HD Socket & Wire - 84574264
    Product Specifications
    • Notes: W/Led Signature Design
    • Location: Driver Side; Passenger Side
    • Other Names: Socket Wire
    • Item Dimensions: 6.1 x 5.9 x 1.2 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD Socket & Wire
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Denali, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
    $45.70 MSRP: $72.90
    You Save: $27.20 (38%)
  • OEM 2021 GMC Sierra 3500 HD Socket & Wire Diagram - 84574264
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Socket & Wire

    PartNumber: 84574264
    OEM 2021 GMC Sierra 3500 HD Socket & Wire - 84574264
    Product Specifications
    • Notes: W/Led Signature Design
    • Location: Driver Side; Passenger Side
    • Other Names: Socket Wire
    • Item Dimensions: 6.1 x 5.9 x 1.2 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD Socket & Wire
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Denali, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
    $45.70 MSRP: $72.90
    You Save: $27.20 (38%)
  • OEM 2021 GMC Sierra 3500 HD High Mount Lamp Diagram - 84900397
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD High Mount Lamp

    PartNumber: 84900397
    OEM 2021 GMC Sierra 3500 HD High Mount Lamp - 84900397
    Product Specifications
    • Notes: Regular Cab
    • Other Names: High Mount Lamp
    • Fitment Type: Direct Replacement
    • Replaces: 20979071, 23509162
    • Part Description: 2021 GMC Sierra 3500 HD High Mount Lamp
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | Base, Denali, SLE, SLT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS