Subaru Impreza Emission Control Sensors
Emission control sensors for the Subaru Impreza span model years 1993 through 2026, covering oxygen sensors, air/fuel ratio sensors, mass air flow sensors, knock sensors, and manifold absolute pressure sensors in direct-fit and OE replacement forms. Pick your Subaru Impreza's year above to narrow the list to emission control sensors with confirmed fitment. Every part shown is checked against our vehicle data.
Standard Motor Products KS98 Ignition Knock Sensor with Wiring Harness
NGK 24696 NTK Air/Fuel Ratio Sensor Oxygen Sensor 4-Wire M18x1.5
NGK 24664 Air/Fuel Ratio Sensor 4-Wire Heated Oxygen Sensor 18mm
NGK NTK 24614 OE Identical Oxygen Sensor, 3-Wire Heated O2 Sensor
Representative Photo, actual item may vary
Spectra Premium OS5331 Downstream Oxygen Sensor Narrow-Band Heated O2 Sensor
Walker Products 250-23091 Oxygen Sensor Direct Fit Narrow-Band 3-Wire
NGK 24576 NTK Oxygen Sensor O2 Sensor, 4-Wire Heated, 18mm Thread
What's here for your Subaru Impreza
- Oxygen Sensors — threaded direct-fit and universal styles for upstream and downstream positions
- Air / Fuel Ratio Sensors — OE replacement and remanufactured units
- Mass Air Flow Sensors — direct-fit and kit options
- Ignition Knock (Detonation) Sensors — manifold-mount and inline fitments
- Manifold Absolute Pressure Sensors — direct-fit replacements
The widest selection here comes from DENSO, Walker Products, Standard Motor Products, and Delphi, each offering broad coverage of Subaru Impreza model years. Other categories Subaru Impreza owners shop for: Subaru Impreza Springs and Suspension Parts, Subaru Impreza Shocks and Struts and Subaru Impreza Engine Block Parts, or browse all Subaru Impreza parts and accessories.