Bosch 13091 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Bosch Actual OE Oxygen Sensor 13091

Bosch 13091 is an Actual OE Oxygen Sensor built for precise air-fuel-ratio feedback to the ECU. It supports stable combustion control and emissions management for Nissan Pathfinder, Infiniti QX4, Infiniti I30, Infiniti Q45, Nissan 300ZX, Nissan 200SX, and Nissan Maxima applications where a narrow-band heated sensor is specified.

Key Features

• Actual OE Oxygen Sensor from Bosch
• Narrow-band heated design for closed-loop fuel control
• Specific fit with threaded mounting
• 3-wire configuration with included wiring harness
• Blade terminals and oblong male connector
• 18 mm thread diameter and 22 mm hex size
• Metal housing with high-temperature-resistant construction
• Wiring harness length: 19.9 in; overall length: 23.6 in

OE-Style Sensor Performance

Bosch developed this switching-type oxygen sensor using the company’s long OE sensor background, including planar narrowband technology that improves light-off response, lambda accuracy, and closed-loop operation. The sensor uses advanced ceramic elements and controlled heater operation to maintain consistent signal output under heat and vibration. Bosch 13091 is a direct replacement choice for vehicles that require a narrow-band heated upstream oxygen sensor, including select Nissan Pathfinder and Infiniti QX4 applications.

This part cross-references Nissan/Infiniti OE numbers such as 22690-28F60 and 22690-30P00 for the same application.

Common Problems This Sensor Can Address

• Check engine light related to oxygen sensor signal faults
• Rough idle or unstable air-fuel mixture control
• Delayed closed-loop fuel control after startup
• Increased exhaust emissions from inaccurate sensor feedback
• Poor fuel economy caused by a degraded upstream O2 sensor

Installation Notes

Verify the connector shape, wire count, thread size, and sensor position before installation. This Bosch oxygen sensor uses a threaded mount with an 18 mm thread diameter and a 22 mm hex size. Confirm upstream left, upstream right, or upstream placement against the vehicle listing for your exact year and engine/emissions configuration. For best results, inspect the harness routing and connector condition before connecting the new sensor.

• Fits 2002-2003 Infiniti QX4, Upstream Left
• Fits 2001-2002 Nissan Pathfinder, Upstream Left
• Fits 2001 Infiniti QX4, Upstream Left
• Fits 1997-2000 Infiniti QX4, Upstream Right
• Fits 1996-2000 Nissan Pathfinder, Upstream Right
• Fits 1999 Infiniti I30, Upstream Right
• Fits 1999 Infiniti I30, Upstream Left
• Fits 1999 Nissan Maxima, Upstream Left
• Fits 1997 Infiniti Q45, Upstream Left
• Fits 1990-1996 Infiniti Q45, Upstream Left
• Fits 1990-1996 Infiniti Q45, Upstream Right
• Fits 1990-1996 Nissan 300ZX, Upstream Right
• Fits 1990-1996 Nissan 300ZX, Upstream Left
• Fits 1987 Nissan 200SX, Upstream
• Fits 1986 Nissan 200SX, Upstream

Quality Assurance

Bosch supplies this Actual OE Oxygen Sensor with OE-proven engineering and materials developed for long-term durability in demanding thermal and vibration conditions. The Bosch 13091 is built to deliver consistent sensor response for the listed Nissan and Infiniti applications.