Bosch 13493 Oxygen Sensor - Upstream

Bosch Wideband Oxygen Sensor for Accord

Bosch Validated Oxygen Sensor 13493 is a specific-fit wideband A/F oxygen sensor for 1998-2000 Honda Accord upstream applications. It provides the ECU with continuous air-fuel ratio data across the full lambda range for precise mixture control, stable drivability, and lower emissions.

Built with a heated design, 4-wire configuration, and a threaded 18 mm mounting style, this Bosch oxygen sensor is made for direct replacement service on the Honda Accord. Bosch part 13493 also cross-references 36531PAA307 for the same application.

Key Features

• Wideband A/F oxygen sensor for continuous air-fuel measurement
• Specific fit for 1998-2000 Honda Accord upstream locations
• Heated sensor design for faster operating temperature
• 4-wire setup with blade terminals and included wiring harness
• Threaded 18 mm mounting with 22 mm hex size
• Metal housing with rectangular female connector
• Bosch part number 13493

Product Details

Bosch Validated Oxygen Sensor 13493 uses wideband sensor technology to deliver detailed feedback to the engine control unit, helping maintain accurate air-fuel ratio control under changing load and temperature conditions. The sensor’s fast light-off and optimized heater control support quicker closed-loop operation after startup, while the robust ceramic construction is built for thermal cycling and everyday road use. For buyers searching for a 1998-2000 Honda Accord upstream oxygen sensor, Bosch 13493 offers a direct-fit replacement backed by Bosch OE development experience.

Common Problems This Sensor Can Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio readings at the ECU
• Rough idle or inconsistent throttle response from faulty sensor feedback
• Reduced fuel economy caused by inaccurate mixture control
• Higher emissions from delayed or unstable sensor response

Installation Notes and Tips

Confirm upstream placement before installation and verify the 18 mm thread size, 4-wire connector style, and harness routing against the original sensor. Inspect the connector and wiring path for heat damage or corrosion before connecting Bosch 13493. Use proper oxygen sensor service tools to avoid damaging the hex or threads during removal and installation.

Quality Assurance

Bosch draws on more than five decades of OE sensor development, and the Bosch Validated Oxygen Sensor line is built to OE-proven standards for accuracy and durability. This part is engineered for direct replacement service on 1998-2000 Honda Accord upstream applications.