SEARCH BY VEHICLE:
Enter Vehicle Year Make Model

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

Year
Make
Model
Options
Drivetrain

2021 Western Star 4900EX Parts

What year is your
Free Same Day Shipping

2021 Western Star 4900EX

Filter Results
  • Notify When Available

    VIDEO

    Wiper Blade Set

    Replaces 2021 Western Star 4900EX Front Driver & Passenger Side 2 Piece 20in Wiper Blade Set TRQ WPB54566

    8 reviews
    Brand: TRQ
    - WPB54566

    • Material: Silicone with Water Repellent Additive
    • Quantity: 2 Piece
    • Kit Includes: (2) Wiper Blades
    • Wiper Blade Length: 20in
    $39.95
    Save 36%
    List $61.95 Save $22.00

    Guaranteed to Fit 2021 Western Star 4900EX

    Guaranteed to Fit 2021 Western Star 4900EX

    Replaces 2021 Western Star 4900EX Front Driver & Passenger Side 2 Piece 20in Wiper Blade Set TRQ WPB54566

    VIDEO

    Wiper Blade Set
    8 reviews
    Brand: TRQ - WPB54566
    • Material: Silicone with Water Repellent Additive
    • Quantity: 2 Piece
    • Kit Includes: (2) Wiper Blades
    • Wiper Blade Length: 20in
    $39.95
    Save 36%
    List $61.95 Save $22.00

    Guaranteed to Fit 2021 Western Star 4900EX

    Guaranteed to Fit 2021 Western Star 4900EX

  • Notify When Available
    Serpentine Belt

    Replaces 2021 Western Star 4900EX for L6 14.9L Air Conditioning Heavy Duty Serpentine Belt TRQ BPA05623

    Brand: TRQ
    - BPA05623

    • Product Grade: Heavy Duty
    $34.95
    Save 17%
    List $41.95 Save $7.00

    Guaranteed to Fit 2021 Western Star 4900EX

    Guaranteed to Fit 2021 Western Star 4900EX

    Replaces 2021 Western Star 4900EX for L6 14.9L Air Conditioning Heavy Duty Serpentine Belt TRQ BPA05623

    Serpentine Belt
    Brand: TRQ - BPA05623
    • Product Grade: Heavy Duty
    $34.95
    Save 17%
    List $41.95 Save $7.00

    Guaranteed to Fit 2021 Western Star 4900EX

    Guaranteed to Fit 2021 Western Star 4900EX

  • Notify When Available
    Spark Plug Socket

    Spark Plug Socket

    19 reviews
    Brand: TRQ
    - TLK06456

    • Socket Drive: 3/8 in. Drive
    • Socket Size: 5/8 in
    $10.95
    Save 8%
    List $11.95 Save $1.00

    Spark Plug Socket

    Spark Plug Socket
    19 reviews
    Brand: TRQ - TLK06456
    • Socket Drive: 3/8 in. Drive
    • Socket Size: 5/8 in
    $10.95
    Save 8%
    List $11.95 Save $1.00
  • Notify When Available

    VIDEO

    Kit image

    Brake Caliper Service Kit

    10 reviews
    Brand: TRQ
    - KTA52070

    • Kit Includes: (1) Brake Bleeding Kit
    • Kit Includes: (1) Brake Cleaner & Fluid Kit
    $30.95
    Save 18%
    List $37.95 Save $7.00

    Brake Caliper Service Kit

    VIDEO

    Kit image
    10 reviews
    Brand: TRQ - KTA52070
    • Kit Includes: (1) Brake Bleeding Kit
    • Kit Includes: (1) Brake Cleaner & Fluid Kit
    $30.95
    Save 18%
    List $37.95 Save $7.00
  • Notify When Available

    VIDEO

    Oxygen Sensor Install Socket

    Heavy Duty Oxygen Sensor Install Socket

    103 reviews
    Brand: TRQ
    - TLK01007

    • Socket Drive: 3/8 in. Drive
    • Product Grade: Heavy Duty
    • Socket Size: 7/8 in
    $16.95
    Save 6%
    List $17.95 Save $1.00

    Heavy Duty Oxygen Sensor Install Socket

    VIDEO

    Oxygen Sensor Install Socket
    103 reviews
    Brand: TRQ - TLK01007
    • Socket Drive: 3/8 in. Drive
    • Product Grade: Heavy Duty
    • Socket Size: 7/8 in
    $16.95
    Save 6%
    List $17.95 Save $1.00
  • Notify When Available

    VIDEO

    Inner Tie Rod Tool

    Heavy Duty Inner Tie Rod Tool

    237 reviews
    Brand: TRQ
    - TLK01002

    • Socket Drive: 3/8 in. Drive
    • Product Grade: Heavy Duty
    $16.95
    Save 41%
    List $28.95 Save $12.00

    Heavy Duty Inner Tie Rod Tool

    VIDEO

    Inner Tie Rod Tool
    237 reviews
    Brand: TRQ - TLK01002
    • Socket Drive: 3/8 in. Drive
    • Product Grade: Heavy Duty
    $16.95
    Save 41%
    List $28.95 Save $12.00
  • Notify When Available

    VIDEO

    Disc Brake Pad Spreader

    Disc Brake Pad Spreader

    191 reviews
    Brand: TRQ
    - TLK01003

    $10.95
    Save 52%
    List $22.95 Save $12.00

    Disc Brake Pad Spreader

    VIDEO

    Disc Brake Pad Spreader
    191 reviews
    Brand: TRQ - TLK01003
    $10.95
    Save 52%
    List $22.95 Save $12.00
  • Notify When Available

    VIDEO

    Interior Trim Removal Kit

    Interior Trim Removal Kit

    102 reviews
    Brand: TRQ
    - TLK01001
    $39.95
    Save 20%
    List $49.95 Save $10.00

    Interior Trim Removal Kit

    VIDEO

    Interior Trim Removal Kit
    102 reviews
    Brand: TRQ - TLK01001
    $39.95
    Save 20%
    List $49.95 Save $10.00
  • Notify When Available

    VIDEO

    CV Axle Shaft Popper Tool

    CV Axle Shaft Popper Tool

    25 reviews
    Brand: TRQ
    - INA81819

    • Tool Length: 14 in
    • Includes: Shim Tool
    • Tool Capacity Range: 2 in
    $61.95
    Save 17%
    List $74.95 Save $13.00

    CV Axle Shaft Popper Tool

    VIDEO

    CV Axle Shaft Popper Tool
    25 reviews
    Brand: TRQ - INA81819
    • Tool Length: 14 in
    • Includes: Shim Tool
    • Tool Capacity Range: 2 in
    $61.95
    Save 17%
    List $74.95 Save $13.00
  • Notify When Available
    Spark Plug Socket

    Spark Plug Socket

    7 reviews
    Brand: TRQ
    - TLK06455

    • Socket Drive: 3/8 in. Drive
    • Socket Size: 9/16 in
    $10.95
    Save 15%
    List $12.95 Save $2.00

    Spark Plug Socket

    Spark Plug Socket
    7 reviews
    Brand: TRQ - TLK06455
    • Socket Drive: 3/8 in. Drive
    • Socket Size: 9/16 in
    $10.95
    Save 15%
    List $12.95 Save $2.00
1

...

1 2 3 4 5

...

8
Close



Western Star is a registered trademark of Daimler Trucks North America LLC. 1A Auto is not affiliated with or sponsored by Western Star or Daimler Trucks North America 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
Select Your Vehicle

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

Year
Make
Model
Options
Drivetrain

This part does not fit a

.
Show parts that fit