Enter Vehicle Year Make Model

Specify your vehicle's year, make and model to guarantee fit.

Year
Make
Model
Options
Drivetrain

2018 GMC Sierra 3500 HD Parts

What year is your
Free Same Day Shipping

2018 GMC Sierra 3500 HD

Filter Results
  • Notify When Available

    VIDEO

    14-17 Silverado,Sierra 1500; 15-17 2500,3500 Pwr-Fold Heat Memory Signal Puddle Chrome Mirror LH

    Replaces 2018 GMC Sierra 3500 HD Driver Side Power Heated Mirror TRQ MRA06847

    45 reviews
    Brand: TRQ - MRA06847

    • Mirror Turn Signal Indicator: Yes
    • Heated: Yes
    • Adjustment Type: Electric
    • Housing Color: Black
    • Cover Color: Chrome
    • Housing Turn Signal Indicator: No
    • Cover Finish: Smooth
    $189.95
    Save 17%
    List $227.95 Save $38.00

    Guaranteed to Fit 2018 GMC Sierra 3500 HD

    Guaranteed to Fit 2018 GMC Sierra 3500 HD

  • Notify When Available

    VIDEO

    14-17 Silverado,Sierra 1500; 15-17 2500,3500 Pwr-Fold Heat Memory Signal Puddle Chrome Mirror RH

    Replaces 2018 GMC Sierra 3500 HD Passenger Side Power Heated Mirror TRQ MRA06848

    50 reviews
    Brand: TRQ - MRA06848

    • Mirror Turn Signal Indicator: Yes
    • Heated: Yes
    • Adjustment Type: Electric
    • Housing Color: Black
    • Cover Color: Chrome
    • Housing Turn Signal Indicator: No
    • Cover Finish: Smooth
    $169.95
    Save 15%
    List $200.95 Save $31.00

    Guaranteed to Fit 2018 GMC Sierra 3500 HD

    Guaranteed to Fit 2018 GMC Sierra 3500 HD

  • Notify When Available

    VIDEO

    99-11 Chevy GMC Cadillac Truck w/ 4.8L 5.3L 6.0L 6.2L Harmonic Balancer

    Replaces 2018 GMC Sierra 3500 HD V8 6.0L Engine Crankshaft Vibration Damper TRQ BPA06028

    5 reviews
    Brand: TRQ - BPA06028

    $74.95
    Save 25%
    List $99.95 Save $25.00

    Guaranteed to Fit 2018 GMC Sierra 3500 HD

    Guaranteed to Fit 2018 GMC Sierra 3500 HD

  • Notify When Available
    Parking Assist Sensor Bezel Set

    Replaces 2018 GMC Sierra 3500 HD Rear 4 Piece Parking Assist Sensor Bezel Set TRQ SNA11143

    1 reviews
    Brand: TRQ - SNA11143

    • Quantity: 4 Piece
    • Kit Includes: (4) Rear Parking Assist Sensor Bezels
    $32.95
    Save 30%
    List $46.95 Save $14.00

    Guaranteed to Fit 2018 GMC Sierra 3500 HD

    Guaranteed to Fit 2018 GMC Sierra 3500 HD

  • Notify When Available

    VIDEO

    O2 Oxygen Sensor

    Replaces O2 Oxygen Sensor TRQ OSA60392

    1 reviews
    Brand: TRQ - OSA60392

    $35.45
    Save 19%
    List $43.95 Save $8.50

    Guaranteed to Fit 2018 GMC Sierra 3500 HD

    Guaranteed to Fit 2018 GMC Sierra 3500 HD

  • Notify When Available
    Kit image

    Replaces 2018 GMC Sierra 3500 HD 4 Wheel Drive with Single Rear Wheels (SRW) Front Driver & Passenger Side 2 Piece Wheel Bearing & Hub Assembly Set TRQ BHA53840

    23 reviews
    Brand: TRQ - BHA53840

    • Quantity: 2 Piece
    • Kit Includes: (1) Front Driver Side Wheel Bearing & Hub Assembly
    • Kit Includes: (1) Front Passenger Side Wheel Bearing & Hub Assembly
    $219.95
    Save 19%
    List $271.95 Save $52.00

    Guaranteed to Fit 2018 GMC Sierra 3500 HD

    Guaranteed to Fit 2018 GMC Sierra 3500 HD

  • Notify When Available

    VIDEO

    Window Regulator

    Replaces 2018 GMC Sierra 3500 HD Front Driver Side Power Window Regulator TRQ WRA52875

    7 reviews
    Brand: TRQ - WRA52875

    • Operation: Power
    $57.95
    Save 24%
    List $75.95 Save $18.00

    Guaranteed to Fit 2018 GMC Sierra 3500 HD

    Guaranteed to Fit 2018 GMC Sierra 3500 HD

  • Notify When Available

    VIDEO

    14-15 Silverado Sierra Power Heated Textured Black Tow Mirror Pair (Trail Ridge)

    Replaces 2018 GMC Sierra 3500 HD without RPO Code AVF (2015 Model Year Interim Program) Driver & Passenger Side 2 Piece Power Textured Black Towing Mirror Set Trail Ridge TR00012

    208 reviews
    Brand: Trail Ridge - TR00012

    • Mirror Type: Towing
    • Mirror Color / Finish: Textured Black
    • Mirror Arm Style: Dual Arm
    • Quantity: 2 Piece
    • Adjustment Type: Electric
    • Kit Includes: (1) Passenger Side Mirror
    • Kit Includes: (1) Driver Side Mirror
    $179.95
    Save 26%
    List $242.95 Save $63.00

    Guaranteed to Fit 2018 GMC Sierra 3500 HD

    Guaranteed to Fit 2018 GMC Sierra 3500 HD

  • Notify When Available

    VIDEO

    O2 Oxygen Sensor Set

    Replaces 2018 GMC Sierra 3500 HD V8 6.0L Downstream 2 Piece O2 Oxygen Sensor Set TRQ OSA61814

    Brand: TRQ - OSA61814

    • Kit Includes: (2) Downstream O2 Oxygen Sensors
    • Quantity: 2 Piece
    $55.45
    Save 18%
    List $67.95 Save $12.50

    Guaranteed to Fit 2018 GMC Sierra 3500 HD

    Guaranteed to Fit 2018 GMC Sierra 3500 HD

  • Notify When Available

    VIDEO

    Wheel Bearing & Hub Assembly

    Replaces Front Wheel Bearing & Hub Assembly TRQ BHA54146

    4 reviews
    Brand: TRQ - BHA54146

    $129.95
    Save 15%
    List $152.95 Save $23.00

    Guaranteed to Fit 2018 GMC Sierra 3500 HD

    Guaranteed to Fit 2018 GMC Sierra 3500 HD

1

...

1 2 3 4 5

...

72
Close



GMC is a registered trademark of General Motors Company. 1A Auto is not affiliated with or sponsored by GMC or General Motors Company. See all trademarks.
Same Day Shipping

Need your part faster? Choose expedited shipping at checkout.

Guaranteed To Fit

Highest quality, direct fit replacement auto parts enforced to the strictest product standards.

USA Customer Support

Exceeding customers' expectations, our team of passionate auto enthusiasts are here to help.

Instructional Video Library

Thousands of how-to auto repair videos to guide you step-by-step through your repair.

Go To Top
Specify your vehicle

Specify your vehicle's year, make and model to guarantee fit.

Year
Make
Model
Options
Drivetrain

If your vehicle isn't listed, close the window to return to search.