GMC Sierra Emission Control Sensors
This page brings together emission control sensors for the GMC Sierra, covering model years 2002–2020. The range includes oxygen sensors, mass air flow sensors, knock sensors, manifold absolute pressure sensors, and throttle position sensors in both direct-fit and OE replacement forms. Choose your model year above and this page keeps only the emission control sensors that fit your GMC Sierra. Each listing is matched to our vehicle fitment data before it appears here.
NGK 21066 Oxygen Sensor Heated 4-Wire Narrow Band M18x1.5 Direct Fit
NGK 21546 Oxygen Sensor O2 Sensor 4-Wire Heated Narrow Band 18mm
NGK 21513 Oxygen Sensor 4-Wire Heated 18mm Thread OE Identical O2 Sensor
NGK 21548 NTK OE Identical Oxygen Sensor 4-Wire Heated M18 x 1.5
Representative Photo, actual item may vary
What's here for your GMC Sierra
- Oxygen sensors — upstream and downstream positions, direct-fit and universal styles
- Mass air flow sensors — manifold and inline fitments, OE replacement designs
- Ignition knock (detonation) sensors — direct-fit replacements for the Sierra's engine block
- Manifold absolute pressure (MAP) sensors — OE-style replacements for the intake manifold
- Throttle position sensors — direct-fit units keyed to the Sierra's throttle body
The widest selection of emission control sensors here comes from Standard Motor Products, ACDelco, Delphi, and DENSO. Other categories GMC Sierra owners shop for: GMC Sierra Exterior Lights, GMC Sierra Valve Train Parts and GMC Sierra Springs and Suspension Parts, or browse all GMC Sierra parts and accessories.