Left Oxygen Sensor for 2001-2002 Chevrolet Silverado 2500 HD & More - Bosch 13701

Bosch 13701 left oxygen sensor for the 2001-2002 Chevrolet Silverado 2500 HD V8 8.1L and other vehicles measures the air-fuel ratio in the exhaust and reports it to the ECU. That reading helps the ECU keep combustion stable and emissions down.

• Narrow-band heated sensor that gives the ECU precise air-fuel-ratio feedback
• Ceramic elements with optimized heater control for steady output under heat and vibration
• Metal housing, integrated heater element and TSP coating to resist vibration, corrosion and contamination
• Reaches operating temperature in under 10 seconds for quick closed-loop control and cold starts

Quick facts

• Part: Bosch 13701 oxygen sensor
• Fits: 2001-2002 Chevrolet Silverado 2500 HD V8 8.1L and other vehicles
• Position: Downstream left
• Material: Metal housing
• Condition: New

A check engine light with an oxygen sensor code, poor fuel economy or a rough idle can point to a sensor that has stopped reporting correctly. Exhaust leaks and wiring faults can set off the same light, so have the stored codes read and the sensor signal tested before replacing it.

Fits

This sensor is listed for a wide range of Chevrolet and GMC models, led by the 2001-2002 Chevrolet Silverado 3500 V8 8.1L and the 2001-2002 Chevrolet Suburban 2500 V8 8.1L. This listing is one left-side sensor, the right side is a separate order, and the 2001-2002 Chevrolet Silverado 3500 V8 8.1L takes one sensor for this downstream left position. Driving something not named here? Look it up by year, model and engine in the "Vehicles it fits" section.

Specifications

In the box

One oxygen sensor with its wiring harness. A mounting bracket is not included.

Installation notes

• Conductive anti-seize is pre-applied to the threads.
• The connectors are direct-fit for quick installation.