Bosch Oxygen Sensor P/N:16274

Keep closed-loop fuel control accurate and combustion in check with the Bosch Oxygen Sensor 16274, a narrow-band, heated switching-type O2 sensor that reports precise air-fuel-ratio feedback to the ECU to help hold stable combustion and reduce emissions. Cataloged in the upstream (pre-catalyst), left-bank position, it is a direct-fit replacement for the 2000-2002 Mercedes-Benz E55 AMG (V8-5.5L), 2001-2006 CL500 (V8-5.0L), 2001-2006 CL55 AMG (V8-5.5L), 2001-2003 E320 (V6-3.2L), 2001-2002 E430 (V8-4.3L), 2001-2006 S430 (V8-4.3L), 2001-2006 S500 (V8-5.0L), 2001-2006 S55 AMG (V8-5.5L), and 2006 S350 (V6-3.7L).

• Switching-type measurement: delivers precise air-fuel-ratio feedback to the ECU for cleaner, stable closed-loop operation.
• Heated for fast light-off: an integrated heater element is designed to reach operating temperature in under 10 seconds for quicker closed-loop control; rated for exhaust streams up to 1,880°F.
• Built to endure: steel housing and ceramic sensing element built to resist vibration and corrosion.
• Fit & install: 4-wire female round connector, M18-1.5 threads, 22 mm hex, and an included wiring harness; mounting bracket not included.

Backed by a 1-year, unlimited-mileage warranty for non-commercial passenger cars and light trucks. Country of origin: United States.

Manufacturer part number 16274.