Bosch 18048 Oxygen Sensor - Downstream Front, Downstream Left or Downstream Right

Reliable Oxygen Sensor for Acura and Honda Vehicles

The Bosch Validated Oxygen Sensor part number 18048 is designed specifically for select Acura and Honda models, including the Accord, MDX, Odyssey, and Pilot. This narrow-band heated oxygen sensor ensures accurate air-fuel mixture readings to support optimal engine performance and emissions control.

• Specific fit for Acura and Honda models such as Accord, Crosstour, MDX, Odyssey, Pilot, RDX, Ridgeline, RL, RLX, TL, TLX, and ZDX
• Heated narrow-band oxygen sensor type for precise emissions monitoring
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size for secure installation
• Includes a 21.2-inch wiring harness with a 4-wire blade terminal and male rectangular connector
• Constructed with durable metal housing finished in steel color
• Overall length of 24.6 inches and wiring harness length of 21.2 inches for proper fitment

About the Bosch Validated Oxygen Sensor Product Line

The Bosch Validated Oxygen Sensor line is engineered to meet stringent OEM specifications, providing reliable replacement sensors that maintain factory-level performance. This product line focuses on delivering precise sensor readings and durability, making it suitable for emission control systems in specific Acura and Honda vehicles. Part number 18048 is part of this line, ensuring compatibility and quality for your vehicle’s oxygen sensing needs.

Detailed Product Description

This Bosch oxygen sensor features a narrow-band heated design, which allows it to quickly reach operating temperature and provide accurate oxygen level data to the engine control unit. The sensor’s metal housing and threaded mounting ensure a secure and long-lasting fit. With a 4-wire configuration and a male rectangular connector, it integrates seamlessly with the vehicle’s wiring harness. The 21.2-inch wiring harness length and overall length of 24.6 inches accommodate the specific routing requirements of Acura and Honda models listed in the fitment.

Common Applications and Issues Addressed

• Restores proper air-fuel ratio monitoring for improved fuel efficiency
• Resolves check engine light triggers related to oxygen sensor faults
• Helps reduce harmful emissions by providing accurate sensor data
• Prevents engine performance issues caused by faulty oxygen sensors
• Supports smooth engine idling and acceleration response

Installation Notes and Tips

Installation requires a 22 mm hex socket for sensor removal and tightening. Ensure the threaded mounting surface is clean before installation to prevent leaks. The sensor’s wiring harness includes a male rectangular connector with blade terminals; verify connector compatibility with your vehicle’s harness. No mounting bracket is included, so use the existing mounting point on the exhaust system. Follow vehicle-specific service manual instructions for proper torque specifications and sensor placement.

Quality Assurance and Warranty

The Bosch Validated Oxygen Sensor 18048 is manufactured to meet OEM standards for fit, form, and function. Bosch’s quality control processes ensure consistent sensor performance and durability. While specific warranty details may vary, Bosch typically offers a limited warranty covering defects in materials and workmanship. Refer to Bosch or your parts provider for exact warranty terms.