Oxygen Sensor

Product Details

Maintain peak engine performance and precise air/fuel ratio telemetry with the Febi Bilstein Heated Oxygen Sensor. As a vital link in your BMW's engine management feedback loop, the post-catalytic converter diagnostic sensor monitors exhaust efficiency and ensures your ECU makes precise fuel corrections. An aged or fouled downstream O2 sensor can cause improper fuel mapping, sluggish throttle response, and stored fault codes. Manufactured to original equipment standards, this Febi Bilstein sensor features precise thread pitch, factory harness length, and rapid heating capability to deliver seamless performance on both the street and the track.

Key Features

• Precision Telemetry: Provides reliable downstream exhaust gas feedback to keep engine management operating within spec.

• OEM Quality Construction: Manufactured to rigorous OE specifications for precise fitment and dependable long-term service.

• Fast-Acting Heating Circuit: Internal heating element allows quick sensor activation during cold starts to reduce warmup emissions.

• Exact Fitment: Features pre-terminated wiring and OE thread sizing for a straightforward, bolt-on replacement.

• Durable Outer Shell: Engineered to resist extreme exhaust thermal cycles, moisture, and road debris.

Specifications

• Brand: Febi Bilstein

• Manufacturer Part Number: 177369

• Component Type: Downstream / Post-Cat Oxygen Sensor (Heated Diagnostic Probe)

• Harness Cable Length: 570 mm

• External Thread Diameter: M18 x 1.5

• Hex / Wrench Size: 22 mm

• Circuit Count: 4-Wire

• Weight: 0.11 kg

• OEM Interchange Numbers: 11 78 1 742 051, 11 78 1 742 052, 11 78 1 743 996, 11 78 7 506 539, 11 78 7 512 973

Prop 65 Warning

Product Q&A

Lifetime Replacement

Fits These Cars