Bosch 13363 Oxygen Sensor - Downstream

Bosch Oxygen Sensor for Downstream Control

Bosch Part Number 13363 is a specific-fit, narrow-band heated oxygen sensor built for stable air-fuel-ratio feedback to the ECU. It is engineered for downstream applications on select Acura and Honda models, including Acura Integra, Honda CR-V, Acura EL, and Honda Civic.

As part of the Bosch Engineered Oxygen Sensor line, this sensor reflects Bosch’s long OE development history in oxygen sensing technology. The design uses a threaded metal housing, a 4-wire harness, and a rectangular male connector to support accurate closed-loop operation under demanding heat and vibration conditions.

Key Features

• Bosch Engineered Oxygen Sensor, Part Number 13363
• Narrow-band heated oxygen sensor for downstream placement
• Specific-fit design with included wiring harness
• 4-wire configuration with blade terminals
• Threaded mounting, 18 mm thread size, 22 mm hex size
• Metal housing with rectangular male connector
• Wiring harness length: 12.8 in; overall length: 16.1 in

Detailed Description

Bosch 13363 is a standard replacement oxygen sensor that measures exhaust oxygen content and sends precise feedback to the engine control unit. That signal helps the ECU maintain the correct air-fuel ratio, support stable combustion control, and reduce emissions during normal driving and warm-up operation. Bosch’s narrow-band heated sensor design uses advanced ceramic elements and optimized heater control for quicker closed-loop response and consistent performance across changing thermal loads.

This Bosch Engineered Oxygen Sensor is a direct-fit option for 1996-2001 Acura Integra, 1997-2001 Honda CR-V, 1997-2000 Acura EL, and 1998-2000 Honda Civic in downstream positions. If you are searching for a downstream oxygen sensor for Honda Civic, Acura Integra oxygen sensor replacement, or a Bosch 13363 oxygen sensor for Honda CR-V, this part matches those applications directly.

This part cross-references Honda OE numbers 36532P2PA01 and 36532P2RA01 for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio feedback to the ECU
• Rough or unstable closed-loop fuel control
• Elevated exhaust emissions from a worn sensor
• Slow sensor response after warm-up

Installation Notes and Tips

Confirm downstream placement before ordering and match the connector, thread size, and wire count to the original sensor. The threaded 18 mm design installs into the exhaust stream, and the included harness supports direct replacement on listed applications. Use proper oxygen sensor service tools and inspect the exhaust bung threads before installation.

Quality Assurance

Bosch has more than five decades of OE oxygen sensor development behind this design. The 13363 uses durable materials and heater control strategies intended to maintain accurate signal output under high heat and vibration, with OE-proven engineering carried into the aftermarket.