Chevrolet Trailblazer Emission Control Sensors
Emission control sensors for the Chevrolet Trailblazer span model years 2002–2025, covering oxygen sensors, mass air flow sensors, manifold absolute pressure sensors, and ignition knock sensors in direct-fit and OE replacement styles. Select your year above and we'll show only the emission control sensors that fit your Chevrolet Trailblazer. Fitment is checked against our vehicle data for every part listed.
NGK 21546 Oxygen Sensor O2 Sensor 4-Wire Heated Narrow Band 18mm
Representative Photo, actual item may vary
NGK 21058 Oxygen Sensor O2 Sensor 4-Wire Heated M18x1.5 OE Identical
Representative Photo, actual item may vary
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What's here for your Chevrolet Trailblazer
- Oxygen Sensors — including direct-fit and universal styles
- Mass Air Flow Sensors — OE replacement and remanufactured options
- Manifold Absolute Pressure (MAP) Sensors — manifold-mount and kit configurations
- Ignition Knock (Detonation) Sensors — direct-fit replacements
The widest selection here comes from Walker Products, Bosch, Standard Motor Products, and Delphi, each offering a broad range of emission control sensor types across Chevrolet Trailblazer model years. Other categories Chevrolet Trailblazer owners shop for: Chevrolet Trailblazer Springs and Suspension Parts, Chevrolet Trailblazer Shocks and Struts and Chevrolet Trailblazer Doors and Door Parts, or browse all Chevrolet Trailblazer parts and accessories.