Bosch 13302 Oxygen Sensor - Downstream

Bosch 13302 Oxygen Sensor Overview

Bosch 13302 is a specific-fit, narrow-band heated oxygen sensor for downstream applications. It provides the ECU with air-fuel-ratio feedback to support stable combustion control and lower emissions, making it a direct replacement choice for select Toyota models.

Built under the Bosch Engineered Oxygen Sensor line, this part reflects Bosch’s OE-focused oxygen sensor development, including faster sensor response, accurate lambda measurement, and durable construction for high-heat, high-vibration environments.

Key Features

• Specific-fit downstream oxygen sensor for select Toyota applications
• Narrow-band heated design for quicker closed-loop operation
• 4-wire configuration with blade terminals and rectangular connector
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Metal housing with high-temperature-resistant construction
• Wiring harness included for direct replacement use
• Bosch part number 13302 for catalog and cross-reference lookup

Detailed Product Description

Bosch 13302 is engineered as a standard replacement oxygen sensor for downstream monitoring on 2000-2004 Toyota Avalon, 1996-1999 Toyota Paseo, 1995-1999 Toyota Tercel, and 1995 Toyota Paseo with California Emission System. It uses a heated narrow-band sensing element to deliver the signal the ECU needs for fuel control after the catalytic converter.

The Bosch Engineered Oxygen Sensor line is built on Bosch’s long OE development history, with ceramic sensing elements, controlled heater performance, and materials selected for thermal durability. For buyers searching for a downstream oxygen sensor for Toyota Avalon, Toyota Tercel, or Toyota Paseo, Bosch 13302 offers the correct fitment format and sensor style for these listed applications. This part cross-references Bosch 13302 for the same application.

What This Sensor Helps Address

• Check engine light related to downstream oxygen sensor performance
• Rich or lean fuel trim readings caused by a worn sensor
• Slow sensor response during closed-loop operation
• Emissions test failures tied to oxygen sensor signal issues
• Rough combustion control from degraded air-fuel feedback

Installation Notes and Tips

Verify the vehicle year, make, model, and downstream position before installation. Confirm the 18 mm thread size, 22 mm hex, 4-wire layout, and rectangular connector match the original sensor. Inspect the harness routing and connector condition before connecting the new sensor, and use proper oxygen sensor service tools to avoid damaging the threaded bung.

For Toyota Avalon, Toyota Paseo, and Toyota Tercel applications, compare the original sensor location and connector style to ensure the Bosch 13302 is the correct replacement. Follow factory service procedures for torque and wiring routing.

Quality Assurance

Bosch supplies oxygen sensors with OE-focused engineering and durable materials developed for demanding exhaust temperatures and vibration exposure. Bosch 13302 is part of the Bosch Engineered Oxygen Sensor line, built to meet standard replacement needs for the listed Toyota applications.