Bosch Oxygen Sensor P/N:15900

Keep the ECU dialed into the correct air-fuel ratio with the Bosch Switching-Type Oxygen Sensor 15900. This narrow-band heated O2 sensor is a direct-fit replacement for the 2002-2004 Oldsmobile Alero (L4-2.2L), 2002-2005 Pontiac Grand Am (L4-2.2L), 2004-2005 Chevrolet Classic (L4-2.2L), and 2004 Chevrolet Corvette (V8-5.7L). It measures the oxygen content of the exhaust stream and feeds a switching signal to the ECU for closed-loop fuel control, helping the engine hold stable combustion and lower emissions.

• Narrow-band, heated: A 4-wire design with an integrated heater element reaches operating temperature quickly for faster closed-loop control after a cold start.
• Threaded fit: M18 x 1.5 threads and a 22 mm hex thread into the exhaust bung, with a female square connector.
• Wiring harness included; no mounting bracket: Ships with its wiring harness for a direct connection.
• OE-proven: As the inventor of the oxygen sensor, Bosch has supplied OE manufacturers for more than 50 years; backed by a 1-year, unlimited-mileage warranty for non-commercial passenger cars and light trucks.

Signs the original sensor may need replacing include a check engine light, rough idle, or reduced fuel economy; diagnose the cause first, since these symptoms can have other sources. If a failed oxygen sensor is the cause, this replaces it. Sold individually; some applications use two. Country of origin: United States.

Interchange: Manufacturer part number 15900.