Keep the signal flowing between your oxygen sensor and the engine wiring harness with the Standard Ignition Oxygen Sensor Connector S-938. It installs as a direct-fit replacement across a wide range of GM cars, trucks, and vans, including the 2008 Buick Enclave, 2011-2017 Chevrolet Equinox, 2007-2012 Chevrolet Colorado, 2001-2002 Chevrolet Silverado 1500, and 2010-2017 GMC Terrain — see the Buyer's Guide tab for the full list of applications.
What it does: This connector provides the electrical link that joins the oxygen (O2) sensor to the vehicle's wiring harness, carrying the sensor's circuits so the engine control module can read exhaust oxygen and adjust the air-fuel ratio.
- Direct-fit replacement: installs in place of the original connector on the listed applications.
- Reconnects the circuit: replaces a corroded, melted, or broken connector so the O2 sensor circuit joins the harness cleanly.
- Quantity varies by application: some listed vehicles use one and others use two — check your vehicle's requirement.
If a damaged or corroded O2 sensor connector is the cause of an intermittent sensor signal or an oxygen-sensor circuit code, this connector replaces it. Diagnose the cause before replacing, as the same symptoms can come from the sensor itself or other wiring. Manufacturer part number S-938 (also S938).
