Bosch 15343 Oxygen Sensor - Upstream Right

Overview of Bosch Actual OE Oxygen Sensor 15343

The Bosch Actual OE Oxygen Sensor 15343 is designed specifically for Nissan Pathfinder and Infiniti QX4 models. This narrow-band heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle’s engine control unit.

• Specific fit for Nissan Pathfinder and Infiniti QX4
• Heated narrow-band oxygen sensor for reliable operation
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Includes wiring harness with 3 wires and a round male connector
• Durable metal housing finished in steel for long-lasting use
• Standard replacement grade for direct OE compatibility

Detailed Features and Specifications

This Bosch oxygen sensor (part number 15343) features a threaded terminal type and mounting, ensuring secure installation in the exhaust system. The sensor is a narrow-band heated type, which helps maintain accurate readings even during cold starts. It comes with a wiring harness included, featuring 3 wires and a round male connector with 4 female terminals, designed for a specific fit rather than universal application. The sensor’s metal housing and steel finish provide durability against harsh exhaust conditions. The sensor weighs approximately 0.24 lbs and has an 18 mm thread size, making it compatible with the OEM specifications of Nissan Pathfinder and Infiniti QX4 vehicles.

About the Bosch Actual OE Oxygen Sensor Product Line

The Bosch Actual OE Oxygen Sensor line is engineered to meet original equipment standards, providing reliable emissions control components that match factory specifications. This product line focuses on delivering precise sensor performance and fitment, ensuring that replacement oxygen sensors like the 15343 maintain the integrity of the vehicle’s emission system and engine management.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for Nissan Pathfinder and Infiniti QX4
• Resolves engine performance issues related to faulty oxygen sensors
• Helps reduce emissions and prevent failed emissions tests
• Eliminates rough idling and poor fuel economy caused by sensor failure
• Prevents check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Bosch 15343 oxygen sensor, ensure the threaded mounting is properly tightened using a 22 mm hex socket. The sensor’s wiring harness and connector are designed for a specific fit, so verify connector compatibility with the vehicle’s wiring before installation. Avoid over-tightening to prevent damage to the sensor or exhaust manifold threads. It is recommended to replace the sensor when the engine is cool to avoid burns and ensure safe handling.

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The Actual OE Oxygen Sensor 15343 is a standard replacement part that aligns with OEM specifications for Nissan Pathfinder and Infiniti QX4 models. While specific warranty details may vary, Bosch typically offers coverage against manufacturing defects to provide confidence in product reliability.