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

    VIDEO

    99-15 Chevy, GMC Multifit 4.8L 5.3L 6.0L 6.2L Valve Cover Gasket Set w/ Grommets

    Replaces 2003 Chevrolet Trailblazer EXT V8 5.3L Valve Cover Gasket Set TRQ SGA11408

    12 reviews
    Brand: TRQ - SGA11408

    • Includes: Grommets
    $44.95
    Save 17%
    List $53.95 Save $9.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available

    VIDEO

    Mass Air Flow Sensor

    Replaces 2003 Chevrolet Trailblazer EXT V8 5.3L Mass Air Flow Sensor TRQ ESA48429

    3 reviews
    Brand: TRQ - ESA48429

    $76.95
    Save 13%
    List $88.95 Save $12.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available

    VIDEO

    02-07 GM Truck Combination Switch w/Cruise Control

    Replaces 2003 Chevrolet Trailblazer EXT with Cruise Control Turn Signal Combination Lever TRQ SWA41819

    110 reviews
    Brand: TRQ - SWA41819
    $69.95
    Save 14%
    List $80.95 Save $11.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available

    VIDEO

    Engine Oil Level Sensor

    Replaces 2003 Chevrolet Trailblazer EXT Engine Oil Level Sensor TRQ ESA53642

    6 reviews
    Brand: TRQ - ESA53642

    $32.95
    Save 21%
    List $41.95 Save $9.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available

    VIDEO

    Tail Light Circuit Board

    Replaces 2003 Chevrolet Trailblazer EXT Driver & Passenger Side 2 Piece Tail Light Circuit Board Set TRQ LTA87701

    1 reviews
    Brand: TRQ - LTA87701

    • Quantity: 2 Piece
    • Kit Includes: (1) Passenger Side Tail Light Circuit Board
    • Kit Includes: (1) Driver Side Tail Light Circuit Board
    $54.95
    Save 15%
    List $64.95 Save $10.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available

    VIDEO

    94-03 GM Hummer Isuzu Multifit w/AT Neutral Safety Switch

    Replaces 2003 Chevrolet Trailblazer EXT Automatic Transmission Neutral Safety Switch TRQ SWA41570

    10 reviews
    Brand: TRQ - SWA41570
    $39.95
    Save 23%
    List $51.95 Save $12.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available

    VIDEO

    02-09 GM Isuzu Saab Mid Size SUV Front Axle Shaft Pair

    Replaces 2003 Chevrolet Trailblazer EXT Front Driver & Passenger Side 2 Piece CV Axle Assembly Set TRQ CSA82476

    18 reviews
    Brand: TRQ - CSA82476

    • Quantity: 2 Piece
    • Kit Includes: (1) Front Driver Side CV Axle Assembly
    • Kit Includes: (1) Front Passenger Side CV Axle Assembly
    $179.95
    Save 13%
    List $207.95 Save $28.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available

    VIDEO

    03-09 GM Truck (w/ATC) Heater Blower Motor Resistor

    Replaces 2003 Chevrolet Trailblazer EXT with Automatic Temperature Control Front Blower Motor Module TRQ HCA40047

    68 reviews
    Brand: TRQ - HCA40047

    • Includes: Wiring Harness
    $48.95
    Save 21%
    List $61.95 Save $13.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available

    VIDEO

    Oil Pressure Sender

    Replaces 2003 Chevrolet Trailblazer EXT V8 5.3L Oil Pressure Sender TRQ SWA41738

    27 reviews
    Brand: TRQ - SWA41738
    $44.95
    Save 24%
    List $58.95 Save $14.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available

    VIDEO

    Vapor Canister Purge Solenoid Valve

    Replaces 2003 Chevrolet Trailblazer EXT L6 4.2L Vapor Canister Purge Solenoid Valve TRQ EVA47746

    5 reviews
    Brand: TRQ - EVA47746

    $38.95
    Save 5%
    List $40.95 Save $2.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

1

...

1 2 3 4 5

...

75
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.