Bosch 18133 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Bosch Wideband O2 Sensor for Nissan and INFINITI

Bosch Validated Oxygen Sensor 18133 is a specific-fit, heated wideband air/fuel sensor built for precise upstream mixture monitoring. It delivers continuous lambda-range feedback to the ECU, helping maintain accurate fuel control in Nissan and INFINITI applications.

Use Bosch 18133 when you need an OE-style replacement for upstream wideband oxygen sensor service on select Nissan Altima, Maxima, Murano, Quest, Sentra, and INFINITI models.

Key Features

• Wideband A/F oxygen sensor for continuous air-fuel ratio measurement
• Heated design for faster sensor warm-up and stable operation
• Specific fit with 5-wire harness and included wiring harness
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Metal housing with robust ceramic construction for thermal durability
• Rectangle connector, male connector gender, female terminal gender
• Overall length: 15.6 in; sealing surface to connector end: 14.4 in
• Bosch Validated Oxygen Sensor line backed by more than five decades of OE development

Product Details

Bosch pioneered the wideband A/F oxygen sensor design used in modern engine management, and part number 18133 follows that OE-focused approach with fast light-off and optimized heater control. It provides detailed upstream feedback for vehicles that rely on precise mixture correction under changing load and temperature conditions. This part cross-references Nissan/INFINITI OE numbers 226931JA0A and 226933RC0A for the same application.

Fits 2013-2018 Nissan Altima, Upstream; Fits 2014 Nissan Maxima, Upstream Left; Fits 2014 Nissan Maxima, Upstream Right; Fits 2011-2014 Nissan Murano, Upstream Left; Fits 2011-2014 Nissan Murano, Upstream Right; Fits 2013-2017 Nissan Sentra, Upstream; Fits 2015-2017 Nissan Quest, Upstream Left; Fits 2011-2013 Nissan Quest, Upstream Left; Fits 2011-2013 Nissan Quest, Upstream Right; Fits 2014 Nissan Quest, Upstream Left; Fits 2014 Nissan Quest, Upstream; Fits 2017-2018 Nissan Versa, Upstream; Fits 2017 Nissan Versa Note, Upstream; Fits 2013-2015 Nissan Armada, Upstream; Fits 2013-2015 Nissan TITAN, Upstream; Fits 2014 Nissan Pathfinder, Upstream; Fits 2014 Nissan 370Z, Upstream; Fits 2011-2013 Nissan 370Z, Upstream; Fits 2013-2014 Nissan Frontier, Upstream; Fits 2014 Nissan Xterra, Upstream; Fits 2013 Nissan Xterra, Upstream; Fits 2014 INFINITI QX50, Upstream; Fits 2014 INFINITI QX60, Upstream; Fits 2014 INFINITI QX70, Upstream; Fits 2014 INFINITI Q60, Upstream; Fits 2014 INFINITI Q70, Upstream; Fits 2013 INFINITI EX37, Upstream; Fits 2013 INFINITI FX37, Upstream; Fits 2011-2013 INFINITI G37, Upstream; Fits 2013 INFINITI JX35, Upstream; Fits 2012-2013 INFINITI M35h, Upstream; Fits 2012-2013 INFINITI M37, Upstream; Fits 2011-2012 INFINITI EX35, Upstream; Fits 2012 INFINITI FX35, Upstream; Fits 2011 INFINITI FX35, Upstream; Fits 2011 INFINITI M37, Upstream; Fits 2011 Nissan Cube, Upstream; Fits 2012-2014 Nissan Cube, Upstream; Fits 2020-2021 Nissan NV1500, Upstream; Fits 2020-2021 Nissan NV200, Upstream; Fits 2020-2021 Nissan NV2500, Upstream; Fits 2020-2021 Nissan NV3500, Upstream; Fits 2012-2019 Nissan NV1500, Upstream; Fits 2013-2019 Nissan NV200, Upstream; Fits 2012-2019 Nissan NV2500, Upstream; Fits 2012-2019 Nissan NV3500, Upstream.

Common Repair Uses

• Restores accurate upstream air-fuel ratio feedback
• Addresses lean or rich mixture-related drivability concerns
• Helps resolve oxygen sensor fault codes on supported Nissan and INFINITI vehicles
• Supports proper fuel trim control after sensor aging or contamination
• Replaces a worn wideband sensor on emissions-related service jobs

Installation Notes

Install in the upstream sensor location specified for the vehicle application. Verify connector shape, wire count, thread size, and sensor position before installation. Use the correct oxygen sensor socket and avoid contaminating the sensing element during handling.

Quality Assurance

Bosch Validated Oxygen Sensor 18133 is built to Bosch OE standards with wideband sensing technology, fast response characteristics, and durable construction for demanding thermal cycles. Bosch’s long OE development history supports consistent sensor performance in modern engine management systems.