Enter Vehicle Year Make Model

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

Year
Make
Model
Options
Drivetrain

2021 Ram 4500 Truck Parts

What year is your
Free Same Day Shipping

2021 Ram 4500 Truck

Filter Results
  • Notify When Available

    VIDEO

    Combination Switch

    Replaces 2021 Ram 4500 Truck Combination Switch TRQ SWA62964

    6 reviews
    Brand: TRQ - SWA62964

    • Switch Functions: Wiper
    • Switch Functions: Headlight Dimmer
    $53.95
    Save 22%
    List $68.95 Save $15.00

    Guaranteed to Fit 2021 Ram 4500 Truck

    Guaranteed to Fit 2021 Ram 4500 Truck

  • Notify When Available

    VIDEO

    Performance Ignition Coil Kit (8pc)

    Replaces 2021 Ram 4500 Truck V8 6.4L 8 Piece Performance Ignition Coil Set TRQ Performance ICA64247

    20 reviews
    Brand: TRQ Performance - ICA64247

    • Quantity: 8 Piece
    • Ignition Coil Type: Performance
    • Kit Includes: (8) Ignition Coils
    • Ignition Coil Color: Red
    $260.95
    Save 13%
    List $298.95 Save $38.00

    Guaranteed to Fit 2021 Ram 4500 Truck

    Guaranteed to Fit 2021 Ram 4500 Truck

  • Notify When Available
    Mirror

    Replaces 2021 Ram 4500 Truck Driver Side Power Heated Towing Mirror Trail Ridge TR00918

    2 reviews
    Brand: Trail Ridge - TR00918

    • Mirror Type: Towing
    • Heated: Yes
    • Adjustment Type: Electric
    • Housing Turn Signal Indicator: Yes
    • Cover Finish: Textured
    • Cover Color: Black
    • Housing Color: Black
    • Mirror Turn Signal Indicator: No
    $205.95
    Save 25%
    List $275.95 Save $70.00

    Guaranteed to Fit 2021 Ram 4500 Truck

    Guaranteed to Fit 2021 Ram 4500 Truck

  • Notify When Available

    VIDEO

    O2 Oxygen Sensor

    Replaces O2 Oxygen Sensor TRQ OSA61699

    Brand: TRQ - OSA61699

    $37.95
    Save 22%
    List $48.95 Save $11.00

    Guaranteed to Fit 2021 Ram 4500 Truck

    Guaranteed to Fit 2021 Ram 4500 Truck

  • Notify When Available
    Serpentine Belt Idler Pulley

    Replaces 2021 Ram 4500 Truck L6 6.7L Serpentine Belt Idler Pulley TRQ BPA04027

    2 reviews
    Brand: TRQ - BPA04027

    $46.95
    Save 22%
    List $59.95 Save $13.00

    Guaranteed to Fit 2021 Ram 4500 Truck

    Guaranteed to Fit 2021 Ram 4500 Truck

  • Notify When Available
    Valve Cover

    Replaces 2021 Ram 4500 Truck V8 6.4L Passenger Side Valve Cover TRQ VCA89394

    1 reviews
    Brand: TRQ - VCA89394

    $127.95
    Save 31%
    List $185.95 Save $58.00

    Guaranteed to Fit 2021 Ram 4500 Truck

    Guaranteed to Fit 2021 Ram 4500 Truck

  • Notify When Available
    Mirror

    Replaces 2021 Ram 4500 Truck Passenger Side Power Heated Towing Mirror Trail Ridge TR00919

    2 reviews
    Brand: Trail Ridge - TR00919

    • Mirror Type: Towing
    • Heated: Yes
    • Adjustment Type: Electric
    • Housing Turn Signal Indicator: Yes
    • Cover Finish: Textured
    • Cover Color: Black
    • Housing Color: Black
    • Mirror Turn Signal Indicator: No
    $179.95
    Save 33%
    List $267.95 Save $88.00

    Guaranteed to Fit 2021 Ram 4500 Truck

    Guaranteed to Fit 2021 Ram 4500 Truck

  • Notify When Available
    Thermostat with Housing Assembly

    Replaces 2021 Ram 4500 Truck V8 6.4L Thermostat with Housing Assembly TRQ ECA70936

    Brand: TRQ - ECA70936

    $94.95
    Save 26%
    List $127.95 Save $33.00

    Guaranteed to Fit 2021 Ram 4500 Truck

    Guaranteed to Fit 2021 Ram 4500 Truck

  • Notify When Available

    VIDEO

    Kit image

    Replaces 2021 Ram 4500 Truck V8 6.4L 8 Piece Ignition Coil Set TRQ ICA61494

    27 reviews
    Brand: TRQ - ICA61494

    • Quantity: 8 Piece
    • Ignition Coil Type: Direct Replacement
    • Kit Includes: (8) Ignition Coils
    • Ignition Coil Color: Black
    $184.95
    Save 26%
    List $249.95 Save $65.00

    Guaranteed to Fit 2021 Ram 4500 Truck

    Guaranteed to Fit 2021 Ram 4500 Truck

  • Notify When Available

    VIDEO

    Oxygen Sensor Kit

    Replaces 2021 Ram 4500 Truck V8 6.4L Upstream 2 Piece O2 Oxygen Sensor Set TRQ OSA60257

    Brand: TRQ - OSA60257

    • Quantity: 2 Piece
    • Kit Includes: (2) Upstream O2 Oxygen Sensors
    $57.95
    Save 24%
    List $75.95 Save $18.00

    Guaranteed to Fit 2021 Ram 4500 Truck

    Guaranteed to Fit 2021 Ram 4500 Truck

1

...

1 2 3 4 5

...

31
Close



Ram is a registered trademark of FCA US LLC. 1A Auto is not affiliated with or sponsored by Ram or FCA US LLC. 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.