Replacement REPC960912 Heated Oxygen Sensor 4-Wire Direct Fit OE Replacement

The Replacement REPC960912 is a heated, 4-wire oxygen sensor engineered as a direct-fit OE replacement for a range of GM vehicles including the Cadillac SRX, Chevrolet Equinox, and GMC Terrain. Designed to restore proper exhaust gas monitoring and fuel management, this sensor delivers reliable performance equivalent to the original factory unit.

Oxygen sensors — also referred to as O2 sensors or lambda sensors — play a critical role in your vehicle's emissions and fuel delivery systems. By continuously measuring the oxygen content in the exhaust stream, the sensor provides real-time feedback to the engine control module (ECM), allowing it to optimize the air-fuel mixture for efficient combustion, reduced emissions, and maximum fuel economy. A faulty or degraded O2 sensor can trigger a Check Engine Light (CEL) and lead to poor fuel economy and increased emissions.

Key Features:

• 4-Wire Heated Design: Built-in heating element allows the sensor to reach optimal operating temperature quickly, improving cold-start performance and accuracy
• Direct Fit: Engineered as a plug-and-play OE replacement — no cutting or splicing of factory wiring required
• Threaded-In Mounting: Standard threaded installation for straightforward removal and replacement
• OE-Quality Construction: Meets or exceeds original equipment specifications for accurate exhaust oxygen measurement
• Sold Individually: Includes one (1) oxygen sensor

This sensor is compatible with Cadillac SRX (2004–2016), Chevrolet Equinox (2010–2017), and GMC Terrain (2010–2017) applications. Always verify fitment using your vehicle's year, make, model, engine, and sensor position before ordering.