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

    Oil Pressure Sender

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

    27 reviews
    Brand: TRQ - SWA41738
    $39.95
    Save 25%
    List $52.95 Save $13.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available
    Transmission Shift Solenoid

    Replaces 2003 Chevrolet Trailblazer EXT 3-2 Transmission Shift Solenoid TRQ TFA86502

    Brand: TRQ - TFA86502
    $25.45
    Save 31%
    List $36.95 Save $11.50

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available
    Ignition Coil Set

    Replaces 2003 Chevrolet Trailblazer EXT L6 4.2L 6 Piece Performance Ignition Coil Set TRQ Performance ICA74474

    Brand: TRQ Performance - ICA74474

    • Ignition Coil Color: Red
    • Quantity: 6 Piece
    • Ignition Coil Type: Performance
    • Kit Includes: (6) Performance Ignition Coils
    $136.95
    Save 42%
    List $235.95 Save $99.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available

    VIDEO

    2001-09 Chevy Isuzu GMC Olds Pontiac Multifit Ignition Starter Switch

    Replaces 2003 Chevrolet Trailblazer EXT Ignition Starter Switch TRQ SWA41614

    14 reviews
    Brand: TRQ - SWA41614
    $33.95
    Save 11%
    List $37.95 Save $4.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available

    VIDEO

    Door Actuator

    Replaces HVAC Blend Door Actuator TRQ BDA30811

    23 reviews
    Brand: TRQ - BDA30811
    $44.95
    Save 12%
    List $50.95 Save $6.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available

    VIDEO

    2002-05 Trailblazer Envoy Ascender Rainier Brake Pad & Rotor Kit Rear

    Replaces 2003 Chevrolet Trailblazer EXT Rear Semi-Metallic Brake Pad & Rotor Kit TRQ BKA10501

    15 reviews
    Brand: TRQ - BKA10501

    • Brake Pad Friction Material: Semi-Metallic
    • Kit Includes: (1) Rear Semi-Metallic Brake Pad Set with Contact Point Grease & Hardware
    • Kit Includes: (2) Rear Brake Rotors
    $125.95
    Save 20%
    List $156.95 Save $31.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available

    VIDEO

    Ignition Coil Set

    Replaces 2003 Chevrolet Trailblazer EXT V8 5.3L with Round Style Coil 8 Piece Ignition Coil Set TRQ ICA61495

    44 reviews
    Brand: TRQ - ICA61495

    • Ignition Coil Style: Round Style
    • Quantity: 8 Piece
    • Kit Includes: (8) Ignition Coils
    • Ignition Coil Type: Direct Replacement
    • Ignition Coil Color: Black
    $174.95
    Save 16%
    List $207.95 Save $33.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available

    VIDEO

    Sway Bar Bushing

    Replaces 2003 Chevrolet Trailblazer EXT Rear Driver & Passenger Side 2 Piece Sway Bar Bushing Set TRQ PSA41232

    Brand: TRQ - PSA41232

    • Quantity: 2 Piece
    • Kit Includes: (1) Rear Driver Side Sway Bar Bushing
    • Kit Includes: (1) Rear Passenger Side Sway Bar Bushing
    $18.95
    Save 27%
    List $25.95 Save $7.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available

    VIDEO

    Engine Water Pump

    Replaces 2003 Chevrolet Trailblazer EXT V8 5.3L Engine Water Pump TRQ WPA06894

    38 reviews
    Brand: TRQ - WPA06894

    • Includes: Thermostat & Housing
    • Kit Includes: (1) Engine Water Pump
    • Kit Includes: (1) Thermostat with Housing Assembly
    $199.95
    Save 13%
    List $229.95 Save $30.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

  • Notify When Available

    VIDEO

    02-09 Trailblazer (exc SS); 02-06 Trailblazer EXT (w/o HL Wash) w/Full Center Ba

    Replaces 2003 Chevrolet Trailblazer EXT without Headlight Washers Front Grille DIY Solutions GRI00235

    12 reviews
    Brand: DIY Solutions - GRI00235

    $117.95
    Save 33%
    List $176.95 Save $59.00

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

    Guaranteed to Fit 2003 Chevrolet Trailblazer EXT

1

...

3 4 5 6 7

...

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.