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Chevrolet Trailblazer EXT Ignition Wiring and Cables

This page brings together ignition wiring and cables for the Chevrolet Trailblazer EXT, covering model years 2003–2006. The range centers on components that connect ignition sensors to the vehicle's electrical system, including knock sensor harnesses. Select your year above and we'll show only the ignition wiring and cables that fit your Chevrolet Trailblazer EXT. Fitment is checked against our vehicle data for every part listed.

1 - 2 of 2 results

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Picture of Dorman Engine Knock Sensor Harness

Dorman Engine Knock Sensor Harness

63 reviews
Vehicle Specific
from $17
In Stock (10+)
Picture for manufacturer Dorman
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Best Seller Free Shipping
Picture of Holstein Ignition Knock Sensor Wiring Harness

Holstein Ignition Knock Sensor Wiring Harness

33 reviews
Vehicle Specific
from $11
In Stock (6)
Picture for manufacturer Holstein
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What's here for your Chevrolet Trailblazer EXT

  • Ignition Knock (Detonation) Sensor Harness

The widest selection here comes from Standard Motor Products, Dorman, and Holstein, each offering ignition wiring components suited to the Chevrolet Trailblazer EXT. Other categories Chevrolet Trailblazer EXT owners shop for: Chevrolet Trailblazer EXT Springs and Suspension Parts, Chevrolet Trailblazer EXT Valve Train Parts and Chevrolet Trailblazer EXT HVAC Temperature Controls, or browse all Chevrolet Trailblazer EXT parts and accessories.