The CX13354 oxygen sensor (cross-referenced as Bosch 13354) is a high-quality replacement part primarily compatible with a wide range of Lexus and Toyota vehicles. An oxygen sensor (O2 sensor) in a vehicle measures unburned oxygen in the exhaust to help the engine's computer adjust the air-fuel mixture for optimal performance, fuel economy, and lower emissions, working by sending voltage signals to the Engine Control Unit (ECU). These sensors are vital for modern fuel injection, located in the exhaust system, and can fail due to oil, silicone, or lead, causing issues like poor fuel economy, rough idling, and triggering the "check engine" light

Position: Depending on the vehicle, this part may serve as an Upstream (before the catalytic converter) or Downstream (after the catalytic converter) sensor.

Specific Positions: For larger engines (V6/V8), it is often specified for the Downstream Right or Downstream Left positions. 

All orders ship within 24 business hours with tracking.

We gladly accept returns for new/unused items within 30 days of purchase. 

Buyer is responsible for return shipping.