Bosch 18050 Oxygen Sensor - Downstream or Downstream Left

Reliable Oxygen Sensor for Acura and Honda Vehicles

The Bosch Engineered Oxygen Sensor 18050 is designed to provide precise air-fuel mixture readings for select Acura and Honda models. This direct fit, heated narrow-band oxygen sensor ensures accurate emissions control and optimal engine performance.

• Specific fit for Acura and Honda models including Accord, Civic, CR-V, Crosstour, ILX, MDX, Pilot, RDX, Ridgeline, RLX, and TLX
• Heated oxygen sensor with a 10.5-inch wiring harness length and 4-wire configuration
• Threaded mounting type with an 18 mm thread diameter and 22 mm hex size for easy installation
• Durable metal housing finished in steel for long-lasting performance
• Connector features a female rectangular shape with 4 female terminals
• Standard replacement grade type with included wiring harness

About the Bosch Engineered Oxygen Sensor Line

The Bosch Engineered Oxygen Sensor line focuses on delivering precise sensor technology tailored to specific vehicle applications. The 18050 oxygen sensor is engineered to meet OEM specifications for Acura and Honda vehicles, ensuring compatibility and reliable emissions monitoring. This product line emphasizes direct fit sensors with heated elements to maintain accurate readings under various operating conditions.

Product Details and Specifications

This Bosch oxygen sensor (part number 18050) features a narrow-band sensor type designed for direct fit installation. The sensor includes a 4-wire heated design, which helps the sensor reach operating temperature quickly for accurate emissions data. The wiring harness length is 10.5 inches, with an overall length of 14.2 inches and a 13-inch length from sealing surface to connector end. The sensor mounts via a threaded 18 mm diameter fitting and uses a 22 mm hex size for tightening. The connector is female with a rectangular shape and 4 female terminals, ensuring a secure electrical connection. The sensor housing is made of metal with a steel finish, weighing approximately 0.205 pounds.

Common Applications and Issues Addressed

• Restores proper air-fuel ratio readings for improved engine efficiency
• Resolves check engine light triggers related to oxygen sensor faults
• Helps reduce vehicle emissions by providing accurate feedback to the engine control unit
• Improves fuel economy by ensuring correct sensor operation
• Prevents drivability issues caused by faulty oxygen sensors

Installation Notes and Tips

Installation of the Bosch Engineered Oxygen Sensor 18050 requires removal of the old sensor and threading the new sensor into the exhaust manifold or pipe. Use a 22 mm oxygen sensor socket or wrench for proper tightening. Ensure the wiring harness is connected securely to the female rectangular connector with 4 terminals. Avoid over-tightening to prevent damage to the sensor or threads. This sensor is a direct fit for specific Acura and Honda models, so verify vehicle compatibility before installation.

Quality Assurance and Warranty

Bosch Engineered Oxygen Sensors are manufactured to meet strict quality standards and OEM specifications. The 18050 sensor is a standard replacement grade part designed for reliable performance and durability. While specific warranty details may vary, Bosch typically offers limited warranties on their oxygen sensors to cover defects in materials and workmanship.