Bosch 13487 Oxygen Sensor - Downstream

Bosch Oxygen Sensor for Honda and Acura

Bosch Part Number 13487 is a narrow-band heated oxygen sensor built for specific downstream applications on select Honda and Acura vehicles. It delivers air-fuel-ratio feedback to the ECU for stable closed-loop control and emissions monitoring.

Compatible With 2001-2003 Honda Civic, downstream; 2003-2004 Honda Pilot, downstream; and 2001-2002 Acura MDX, downstream. Bosch Engineered Oxygen Sensor 13487 uses OE-focused sensor design and heater control for consistent signal response under demanding exhaust temperatures.

Key Features

• Specific-fit downstream oxygen sensor for select Honda and Acura applications
• Narrow-band heated design for faster light-off and quicker closed-loop operation
• 4-wire configuration with blade terminals and rectangular female connector
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Wiring harness included for direct replacement use
• Metal housing and high-temperature-resistant construction for exhaust service

Product Details

Bosch Engineered Oxygen Sensor 13487 is designed around Bosch’s long OE development history in oxygen sensing technology. The sensor measures exhaust oxygen content so the engine control unit can adjust fuel delivery, helping maintain combustion control and emissions performance. Its heated narrow-band design supports faster operating readiness after startup and stable signal output during normal driving.

This part cross-references Honda/Acura OE numbers 36532PGKA02 and 36532PLMA01 for the same application. For buyers searching for a 2001-2003 Honda Civic downstream oxygen sensor, a 2003-2004 Honda Pilot downstream O2 sensor, or a 2001-2002 Acura MDX downstream oxygen sensor, Bosch 13487 is the direct-fit replacement to compare.

Common Issues This Sensor Can Address

• Check engine light related to downstream oxygen sensor performance
• Incorrect air-fuel feedback affecting closed-loop fuel control
• Slow sensor response after warm-up
• Emissions test failures tied to oxygen sensor faults
• Rough or inconsistent combustion control caused by a worn sensor

Installation Notes

Verify the vehicle year, make, model, and downstream position before installation. This sensor uses an 18 mm threaded mount, a 4-wire layout, and a rectangular female connector, so connector shape and harness routing should match the original part. Inspect the exhaust bung threads and wiring path before tightening the sensor into place.

Quality Assurance

Bosch backs this oxygen sensor with OE-driven engineering and durable materials selected for heat and vibration exposure in exhaust service. Bosch has supplied oxygen sensor technology to vehicle manufacturers for decades, and Part Number 13487 reflects that OE-focused design approach.