Install a heated oxygen sensor without soldering, crimping or specialty tools with the Bosch sensor 15732, a Premium SmartLink™ Universal Oxygen (O2) Sensor built around the same zirconia ceramic element and heater design Bosch uses in its OE applications. It fits many vehicles, among them the 1999-2002 Chevrolet Silverado 1500 4.3L / 4.8L / 5.3L, 1996-1999 Chevrolet C1500 4.3L / 5.0L / 5.7L and 1996-1999 Chevrolet K1500 4.3L / 5.0L / 5.7L. See the "Vehicles it fits" section for the full list.
The sensor reads oxygen content in the exhaust and sends air-fuel-ratio feedback to the engine computer. SmartLink™ pairs an OE-specification base sensor with Bosch's patented Posi-Lock® connector system, so the sensor can be adapted to the existing harness. The extended lead adds flexibility on vehicles with damaged or shortened wiring.
- Solder-free connections: High-temperature, weather-resistant Posi-Lock® connectors make secure electrical connections without soldering, crimping or specialty tools.
- Reusable connection: The connectors can be reopened and reused, so you can correct wiring, adjust routing or service the harness without cutting or replacing connectors.
- What's in the kit: Reusable Posi-Lock® connectors, long-lead wiring and a Bosch sensor with pre-applied conductive anti-seize. A mounting bracket is not included.
- OE heritage: Bosch invented the oxygen sensor and has supplied OE manufacturers for more than 50 years.
Specifications: Narrow-band heated sensor, 4 wires, M18 - 1.5 thread, 22 mm hex, threaded mounting, metal housing, 23.3 in wiring harness, 25.8 in from the sealing surface to the end of the connector, and 27 in overall length. It is cataloged for upstream and downstream positions, including left and right, depending on the application. The listed applications use one or two sensors, depending on the vehicle.
Bosch backs this sensor with a 1-year, unlimited-mileage warranty for non-commercial passenger cars and light trucks. Country of origin: United States.
Frequently Asked Questions
What does this Bosch O2 sensor do?
It is a heated narrow-band sensor that measures oxygen in the exhaust. The engine computer uses that reading to adjust the air-fuel ratio, and the built-in heater helps the sensor reach operating temperature.
Do I need to solder or crimp wires to install it?
No. The SmartLink™ Posi-Lock® connectors make secure, weather-resistant connections without soldering, crimping or specialty tools. They can also be reopened and reused if you need to make adjustments.
What comes in the box?
The Bosch sensor with pre-applied conductive anti-seize, long-lead wiring and reusable Posi-Lock® connectors. A mounting bracket is not included.
Will it fit my 1999-2002 Chevrolet Silverado 1500 4.3L / 4.8L / 5.3L?
Yes, it is listed for the 1999-2002 Chevrolet Silverado 1500 4.3L / 4.8L / 5.3L, among many other vehicles. Check the "Vehicles it fits" section for your engine and sensor position.
What are signs an oxygen sensor may need replacing?
Signs include a check engine light, rough idle, lower fuel economy or a failed emissions test. These symptoms can have other causes, so diagnose the problem before you replace the sensor.
