Please check notes in each part listing to ensure the ABS Wheel Speed Sensor is correct for your 2004 CHEVROLET TRAILBLAZER EXT with a 4.2L 256 engine. ACDELCO & AIRTEX are competing brands, and each brand's ABS Wheel Speed Sensor may be interchangeable. Special restrictions like "California only" or "with sport package" may indicate a ABS Wheel Speed Sensor fits only certain 2004 CHEVROLET TRAILBLAZER EXT models.

Clicking a "More Info" link will display a picture and/or other details about that ABS Wheel Speed Sensor in a separate window (you may need to turn off your pop-up-blocking software for this to work).

After choosing a ABS Wheel Speed Sensor, click the "Add Part" button. Shipping costs will be shown on the Shopping Cart page. You may use your browser's Back button, or click on "Find More Parts", to find more Brake/Wheel Hub parts, other CHEVROLET TRAILBLAZER EXT parts, or parts for a different vehicle. Please try our Interactive Catalog (click red Start button above) for faster searching. Both catalogs use the same shopping cart, so any auto parts you've already chosen for your 2004 CHEVROLET will not be lost if you switch.