GMC Envoy Emission Control Sensors
This page brings together emission control sensors for the GMC Envoy, covering model years 2002–2009. The range includes oxygen sensors, mass air flow sensors, manifold absolute pressure sensors, and ignition knock sensors, with options spanning direct-fit OE replacements, universal-style units, and remanufactured pieces. Choose your model year above and this page keeps only the emission control sensors that fit your GMC Envoy. Each listing is matched to our vehicle fitment data before it appears here.
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 GMC Envoy
- Oxygen Sensors — direct-fit and universal configurations, including manifold-position and downstream placements
- Mass Air Flow Sensors — OE replacement and remanufactured units
- Manifold Absolute Pressure (MAP) Sensors — direct-fit and kit options
- Ignition Knock (Detonation) Sensors — OE-style replacement pieces
The widest selection here comes from Walker Products, Standard Motor Products, Bosch, and ACDelco. Other categories GMC Envoy owners shop for: GMC Envoy Springs and Suspension Parts, GMC Envoy Shocks and Struts and GMC Envoy Exterior Lights, or browse all GMC Envoy parts and accessories.