Bosch 15407 Oxygen Sensor - Downstream

Bosch Oxygen Sensor for Honda Fitment

Bosch 15407 is a narrow-band heated oxygen sensor built for precise air-fuel-ratio feedback to the ECU. It supports stable combustion control and emissions management in specific Honda applications, including downstream service on the Insight and Civic.

Key Features

• Bosch Engineered Oxygen Sensor line with OE development heritage
• Narrow-band heated oxygen sensor for closed-loop fuel control
• Specific fit design with a 4-wire harness and rectangular female connector
• Threaded mounting with 18 mm thread size and 22 mm hex size
• Steel finish, metal housing, and high-temperature-resistant construction
• Wiring harness included with 14.2 in overall length

Product Details

The Bosch 15407 oxygen sensor uses advanced ceramic sensing elements and controlled heater operation to deliver accurate lambda feedback under changing exhaust temperatures. Bosch developed this sensor family from its original oxygen sensor designs and later planar narrowband technology, focusing on faster light-off and quicker closed-loop response. For drivers servicing a Honda Insight or Honda Civic, Bosch 15407 provides a direct replacement option for downstream sensor locations after the primary converter.

This part cross-references Honda 36532PHMA21 and 36532PZAA01 for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Rich or lean fuel mixture readings at the ECU
• Delayed closed-loop operation after startup
• Unstable idle or drivability issues tied to exhaust feedback
• Emissions test failures caused by a worn downstream sensor

Installation Notes

Fits 2002-2006 Honda Insight, downstream, located after primary converter. Fits 2003-2005 Honda Civic, downstream, located after primary converter, without California Emission System. Verify connector shape, thread size, and harness routing before installation. Use the threaded mounting point and confirm the sensor is positioned in the correct downstream location for the vehicle.

Quality Assurance

Bosch backs this oxygen sensor with more than five decades of OE development experience. The Bosch Engineered Oxygen Sensor line is built to meet the demands of heat, vibration, and long-term exhaust exposure while maintaining consistent signal accuracy.