Reconnect your oxygen sensor to the engine wiring harness with the Standard Ignition Oxygen Sensor Connector S-989. It serves as a direct-fit replacement connector for a range of GM applications, including the 2003-2005 Cadillac CTS, 2004-2005 Buick Rendezvous, 2005 Cadillac STS, 2008-2009 Pontiac G8, 2010-2011 Cadillac SRX, 2011-2016 Chevrolet Cruze, 2012-2020 Chevrolet Sonic, 2013-2021 Buick Encore, and 2015-2021 Chevrolet Trax.
- Purpose: Provides the electrical connection between the oxygen sensor and the vehicle wiring harness so the sensor's signal can reach the engine control system.
- Repair-friendly: If the original connector is cracked, melted, or corroded, this replaces it rather than requiring a full harness section.
- Quantity varies by application: Some applications use more than one (for example, the Cadillac CTS is listed at four); confirm how many your vehicle needs.
Signs the connector may need replacing include corroded or damaged terminals, a loose or broken locking tab, or an intermittent oxygen-sensor circuit. If a failed connector is the cause of your sensor fault, this part addresses it. See the Buyer's Guide tab for the full application list.
Manufacturer part number S-989.
