Enter Vehicle Year Make Model

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

Year
Make
Model
Options
Drivetrain

2003 Chevrolet Trailblazer EXT Parts

What year is your
Free Same Day Shipping

2003 Chevrolet Trailblazer EXT

Filter Results
  • Notify When Available
    Transmission Shift Solenoid

    Replaces 2003 Chevrolet Trailblazer EXT Transmission Shift Solenoid TRQ TFA86510

    Brand: TRQ - TFA86510
    $29.95
    Save 19%
    List $36.95 Save $7.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available

    VIDEO

    88-10 GM, Hummer, Isuzu; 05-09 Saab 9-7X Rear Wheel Axle Shaft Bearing & Seal PAIR

    Replaces 2003 Chevrolet Trailblazer EXT Rear 4 Piece Wheel Bearing & Seal Kit TRQ BHA53236

    34 reviews
    Brand: TRQ - BHA53236

    • Quantity: 4 Piece
    • Kit Includes: (2) Rear Wheel Bearings
    • Kit Includes: (2) Rear Wheel Seals
    $62.95
    Save 9%
    List $68.95 Save $6.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available

    VIDEO

    Fuel Injector

    Replaces 2003 Chevrolet Trailblazer EXT V8 5.3L 8 Piece Fuel Injector Set TRQ FIA60337

    33 reviews
    Brand: TRQ - FIA60337

    • Quantity: 8 Piece
    • Kit Includes: (8) Fuel Injectors
    $149.95
    Save 26%
    List $202.95 Save $53.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available

    VIDEO

    03-06 GM Truck Front Hub Bearing & ABS Sensor Pair

    Replaces 2003 Chevrolet Trailblazer EXT Front Driver & Passenger Side 2 Piece Wheel Bearing & Hub Assembly Set TRQ BHA53318

    276 reviews
    Brand: TRQ - BHA53318

    • Quantity: 2 Piece
    • Kit Includes: (1) Front Driver Side Wheel Bearing & Hub Assembly
    • Kit Includes: (1) Front Passenger Side Wheel Bearing & Hub Assembly
    $110.95
    Save 25%
    List $147.95 Save $37.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available

    VIDEO

    Ignition Kit

    Replaces 2003 Chevrolet Trailblazer EXT V8 5.3L with Square Style Coil 17 Piece Performance Ignition Kit TRQ Performance TKA06290

    14 reviews
    Brand: TRQ Performance - TKA06290

    • Kit Includes: (1) Spark Plug Wire Set
    • Kit Includes: (8) Spark Plugs
    • Kit Includes: (8) Ignition Coils
    • Quantity: 17 Piece
    • Ignition Coil Type: Performance
    • Ignition Coil Color: Red
    • Spark Plug Type: Iridium
    $250.95
    Save 32%
    List $366.95 Save $116.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available

    VIDEO

    Ignition Kit

    Replaces 2003 Chevrolet Trailblazer EXT V8 5.3L with 10.50 Inch Spark Plug Wires with Square Style Coil 17 Piece Ignition Kit TRQ TKA06283

    12 reviews
    Brand: TRQ - TKA06283

    • Kit Includes: (1) Spark Plug Wire Set
    • Kit Includes: (8) Spark Plugs
    • Kit Includes: (8) Ignition Coils
    • Quantity: 17 Piece
    • Spark Plug Type: Iridium
    $204.95
    Save 33%
    List $304.95 Save $100.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available

    VIDEO

    Power Steering Hose

    Replaces 2003 Chevrolet Trailblazer EXT L6 4.2L Power Steering Hose 3 Piece Set TRQ PSA69893

    6 reviews
    Brand: TRQ - PSA69893

    • Quantity: 3 Piece Set
    • Kit Includes: (1) Power Steering Pressure Hose
    • Kit Includes: (2) Power Steering Pump Return Hoses
    $133.95
    Save 25%
    List $177.95 Save $44.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available

    VIDEO

    Vehicle Speed Sensor

    Replaces 2003 Chevrolet Trailblazer EXT 4 Wheel Drive Vehicle Speed Sensor TRQ VSA92874

    7 reviews
    Brand: TRQ - VSA92874
    $29.95
    Save 19%
    List $36.95 Save $7.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available

    VIDEO

    Transmission Shift Solenoid

    Replaces 2003 Chevrolet Trailblazer EXT Transmission Shift Solenoid 2 Piece Set TRQ TFA92591

    18 reviews
    Brand: TRQ - TFA92591

    • Quantity: 2 Piece Set
    • Kit Includes: (2) Transmission Shift Solenoids
    $32.95
    Save 13%
    List $37.95 Save $5.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available

    VIDEO

    MAP Sensor

    Replaces 2003 Chevrolet Trailblazer EXT V8 5.3L MAP Sensor TRQ ESA94888

    68 reviews
    Brand: TRQ - ESA94888

    $24.95
    Save 11%
    List $27.95 Save $3.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

1

...

1 2 3 4 5

...

89
Close



Chevrolet is a registered trademark of General Motors Company. 1A Auto is not affiliated with or sponsored by Chevrolet 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.