Bosch 18094 Oxygen Sensor - Upstream Left or Upstream Right

Bosch Wideband Oxygen Sensor for Honda and Acura

Bosch Validated Oxygen Sensor 18094 is a specific-fit wideband A/F oxygen sensor for select Acura RLX and Honda Accord 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.

The Bosch Validated Oxygen Sensor line focuses on OE-style fitment and validated application coverage. This Bosch 18094 sensor uses a heated wideband design with a 5-wire harness, square male connector, and threaded mounting for direct replacement service on the listed vehicles.

Key Features

• Wideband A/F oxygen sensor for continuous air-fuel ratio measurement
• Heated design for faster sensor activity and stable operation
• Specific-fit replacement with included wiring harness
• 5-wire configuration, blade terminals, and square male connector
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Metal housing with robust ceramic sensor construction
• Overall length: 11.6 in; sealing surface to connector end: 10.4 in

Detailed Description

Bosch 18094 is built for vehicles that rely on wideband oxygen sensor feedback for accurate fuel control. Unlike a traditional switching sensor, this wideband unit delivers continuous measurement data that helps the engine control module manage air-fuel ratio more precisely during idle, cruise, acceleration, and load changes. That makes it a direct-fit service part for emissions and drivability repairs on the Acura RLX and Honda Accord applications listed below.

Compatible With 2016-2020 Acura RLX, upstream left; 2014 Acura RLX, upstream left; 2013-2017 Honda Accord, upstream left with California Emission System; 2008-2009 Honda Accord, upstream left with California Emission System; and 2008-2009 Honda Accord, upstream right with California Emission System. This part number, Bosch 18094, is also referenced for OE-style replacement service on these applications. This part cross-references 36531R71L01 and 36541R71L01 for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio readings from a worn upstream sensor
• Rough idle, hesitation, or inconsistent throttle response
• Failed emissions testing tied to sensor response or mixture control
• Fuel economy loss caused by inaccurate exhaust feedback

Installation Notes and Tips

Install Bosch 18094 only in the listed upstream left or upstream right positions shown in the fitment data. Verify the connector shape, terminal count, thread size, and harness length before installation. Because this is a threaded wideband sensor, use the correct oxygen sensor socket and follow the vehicle service procedure for routing and connector engagement.

Quality Assurance

Bosch has more than five decades of OE development in oxygen sensor technology, and this Validated Oxygen Sensor line reflects that application-focused approach. The sensor is built to OE-style standards for the listed Honda Accord and Acura RLX fitments, with validated coverage for the specified California-emissions applications.