2003 Chevrolet Trailblazer Ext Relays, Switches & Sensors

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2003 Chevrolet Trailblazer Ext Relays, Switches & Sensors Parts

Maybe you’re in the middle of a full rebuild of that 2003 Chevrolet Trailblazer Ext. Maybe you just need a couple of Relays, Switches & Sensors products or parts. Either way, Advance Auto Parts has 164 different Relays, Switches & Sensors products in our inventory ranging from $5.79 to $623.99. That means you can find the exact parts or products you need to keep that 2003 Chevrolet Trailblazer Ext running smoothly.

Relays, Switches & Sensors products are only as good as their brand. We stock 17 different brands to make sure you have plenty of trusted parts to choose from for your 2003 Chevrolet Trailblazer Ext. Carquest Premium, AC Delco, and Dorman are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Relays, Switches & Sensors products for your 2003 Chevrolet Trailblazer Ext, but don’t take our word for it - read our customer ratings and reviews and buy with confidence. Out of the 258 reviews in this category, some of the top rated parts include Engine Oil Pressure Sensor with stars and Engine Oil Pressure Sensor with stars.

So if you’re in the market for aftermarket Relays, Switches & Sensors products to keep your 2003 Chevrolet Trailblazer Ext rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Relays, Switches & Sensors Brands To Make Your 2003 Chevrolet Trailblazer Ext Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 2003 Chevrolet Trailblazer Ext demands trusted brand parts and products to keep it running. 17 trusted brands of Relays, Switches & Sensors products are part of Advance Auto Parts’ inventory, and all ready to help make your Trailblazer Ext the best it can be. Here are some of our top Relays, Switches & Sensors brands and parts:

Popular Factory Air Relays, Switches & Sensors Products

We carry Factory Air parts in our stock across Sensors categories, plus more. For a 2003 Chevrolet Trailblazer Ext, our most popular Factory Air Relays, Switches & Sensors products include:
Factory Air Harness Connector
Coolant Temperature Sensor Connector
5
from $24.99

Top 2003 Chevrolet Trailblazer Ext Relays, Switches & Sensors Products from Dorman - OE Solutions

Dorman - OE Solutions products are another trusted brand when it comes to Relays, Switches & Sensors products for your 2003 Chevrolet Trailblazer Ext. Popular Dorman - OE Solutions parts include:
Dorman - OE Solutions Engine Knock Sensor Harness
Ignition Knock (Detonation) Sensor Connector
4.6
from $47.99
Dorman - OE Solutions 4WD Actuator, Front Axle
4WD Actuator Switch
5
from $103.99

FAQs for 2003 Chevrolet Trailblazer Ext Relays, Switches & Sensors Products

What are the 2003 Chevrolet Trailblazer Ext Relays, Switches & Sensors products with the best customer ratings?

ACDelco Ignition Knock (Detonation) Sensor
4.6
They worked perfectly, I did the knock sensors in my truck only approximately 2 years ago previous I did not use ac Delco the first time and regretted
Delphi Knock Sensor
4.5
They were what I needed for the job. Fit just fine.
Driveworks Knock Sensor
4
Originally I used two cheap knock-off sensors to help save me money. Don't do it. These knock sensors are extremely fragile and very sensitive. I repl