Bosch 18134 Oxygen Sensor - Upstream

Bosch Wideband Oxygen Sensor for Nissan and INFINITI

Bosch Validated Oxygen Sensor 18134 is a heated wide-band air-fuel ratio sensor built for precise upstream fuel control. It delivers continuous measurement across the full lambda range, helping the engine control module manage mixture changes with greater detail than a traditional switching sensor.

Compatible With 2011-2018 Nissan and INFINITI applications listed below, this Bosch oxygen sensor supports accurate feedback for vehicles that rely on wideband sensing for emissions and drivability control. The 18134 part number is a direct-fit replacement for specific upstream locations.

Key Features

• Heated wide-band oxygen sensor for upstream air-fuel ratio monitoring
• Specific-fit design with 5-wire harness and included wiring harness
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Rectangle connector, male connector gender, female terminal gender
• Overall length: 15.7 in; sealing surface to connector end: 14.6 in
• Standard replacement grade with robust metal housing
• Bosch Validated Oxygen Sensor line for OE-style application matching

Product Details

Bosch 18134 uses wide-band sensor technology to provide the ECU with continuous air-fuel ratio data instead of a simple rich/lean switch signal. That makes it a strong match for modern engine management systems that need precise upstream feedback during idle, cruise, acceleration, and load changes. Bosch pioneered the planar pump-cell wideband design, and this sensor reflects that OE development background in a direct replacement format.

This part cross-references Nissan OE numbers 226931KC0A and 226931LU0A for the same application. It is listed for 2013-2018 Nissan Altima upstream with California Emission System, 2011-2017 Nissan Juke upstream, 2012-2017 Nissan NV2500 upstream, 2012-2017 Nissan NV3500 upstream, 2015 Nissan Juke upstream to 09/2014, and 2011-2012 INFINITI G25 upstream. The Bosch 18134 part number is also used when searching for a direct-fit upstream wideband oxygen sensor for these vehicles.

What It Helps Address

• Check engine light related to upstream oxygen sensor performance
• Incorrect air-fuel ratio readings affecting fuel control
• Rough idle, hesitation, or inconsistent throttle response tied to sensor feedback
• Higher emissions caused by inaccurate mixture monitoring
• Fuel economy loss from poor closed-loop control

Installation Notes

Install in the upstream sensor location only where listed in the fitment data. Verify connector shape, wire count, thread size, and harness length before installation. Because this is a specific-fit Bosch oxygen sensor, confirm the vehicle’s emission system and model year match the application notes, especially for 2013-2018 Nissan Altima with California Emission System and the 2015 Nissan Juke built to 09/2014.

Quality Assurance

Bosch draws on more than five decades of OE sensor development, and the Validated Oxygen Sensor line is built to meet the demands of modern engine management systems. The wide-band design, heated operation, and ceramic construction are engineered for stable performance through thermal cycling and rapid load changes.

• Fits 2013-2018 Nissan Altima, upstream
• Fits 2011-2017 Nissan Juke, upstream
• Fits 2012-2017 Nissan NV2500, upstream
• Fits 2012-2017 Nissan NV3500, upstream
• Fits 2015 Nissan Juke, upstream, to 09/2014
• Fits 2011-2012 INFINITI G25, upstream