J.C. Whitney SET-ARBJ960905-A OEM Replacement Oxygen Sensor Set

The J.C. Whitney SET-ARBJ960905-A is a direct-fit OEM replacement oxygen sensor set designed to restore proper air-fuel mixture monitoring and exhaust emissions performance. Oxygen sensors — also known as O2 sensors or lambda sensors — communicate exhaust gas data to the engine control module (ECM), enabling precise fuel delivery adjustments for optimal combustion efficiency and reduced emissions.

Key Features:

• 4-wire heated design — ensures fast sensor warm-up and accurate readings across all operating temperatures
• Threaded-in mounting style with standard M18-1.5 thread size for a direct, no-modification fit
• 7/8 in. hex size for use with standard oxygen sensor sockets
• OEM replacement quality — matches original equipment specifications for reliable, long-term performance
• 1-year, unlimited-mileage warranty backed by J.C. Whitney

A failed or degraded oxygen sensor can trigger the check engine light, reduce fuel economy, cause rough idling, and increase harmful exhaust emissions. Replacing the sensor set restores accurate fuel trim feedback and helps your vehicle run cleaner and more efficiently. This set is a precision-engineered, plug-and-play replacement for the applicable fitment.