Bosch 18125 Oxygen Sensor

Overview of Bosch Engineered Oxygen Sensor 18125

The Bosch Engineered Oxygen Sensor 18125 is designed for precise emission control in select Chrysler, Dodge, Jeep, Mercedes-Benz, Ram, and Volkswagen vehicles. This narrow-band heated oxygen sensor ensures accurate air-fuel mixture readings to support optimal engine performance and emissions compliance.

• Specific fit for models including Jeep Grand Cherokee, Dodge Charger, Ram 1500, Mercedes-Benz CLS550, and Volkswagen Routan
• Heated narrow-band oxygen sensor with 4-wire design and pin terminal type
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size for secure installation
• Includes a 13.6-inch wiring harness with a female rectangular connector
• Constructed with durable metal housing and steel finish for longevity

Detailed Product Features and Specifications

The Bosch Engineered Oxygen Sensor 18125 features a 4-wire heated design that allows for faster sensor warm-up and improved accuracy in measuring oxygen levels in the exhaust gases. Its narrow-band sensor type is tailored for precise air-fuel ratio monitoring, essential for emission control systems. The sensor’s threaded mounting type with an 18 mm thread diameter and 22 mm hex size ensures compatibility with specific vehicle exhaust ports. The included wiring harness measures 13.6 inches in length and terminates in a female rectangular connector with four terminals, facilitating a direct and secure electrical connection. The sensor’s overall length is 16.9 inches, with a sealing surface to connector length of 15.7 inches, providing adequate reach for installation in the designated vehicle models.

About the Bosch Engineered Oxygen Sensor Product Line

The Bosch Engineered Oxygen Sensor line focuses on delivering reliable emission control components engineered to meet or exceed OEM specifications. This product line emphasizes precise sensor performance, durability, and compatibility with specific vehicle applications. The 18125 oxygen sensor is part of this line, designed to provide consistent and accurate oxygen level readings to support engine management systems in maintaining optimal combustion and emissions standards.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors causing poor fuel economy
• Resolving engine performance issues related to incorrect air-fuel mixture readings
• Addressing check engine light triggers related to oxygen sensor faults
• Improving emissions system compliance for vehicles like the Jeep Wrangler and Dodge Durango
• Ensuring proper sensor function in heated oxygen sensor circuits for models such as the Ram 2500 and Mercedes-Benz GL450

Installation Notes and Tips

Installation of the Bosch Engineered Oxygen Sensor 18125 requires a threaded mounting port with an 18 mm diameter. Use a 22 mm oxygen sensor socket or wrench for removal and installation. Ensure the wiring harness is properly connected to the female rectangular connector with four terminals to maintain sensor functionality. Avoid damaging the sensor’s metal housing and wiring during installation. This sensor is a specific fit part, so verify compatibility with your vehicle’s make and model before installation.

Quality Assurance and Warranty

Bosch Engineered Oxygen Sensors are manufactured to meet stringent quality standards, ensuring reliable performance and durability. The 18125 oxygen sensor is constructed with a metal housing and steel finish to withstand harsh operating conditions. While specific warranty details may vary, Bosch typically offers coverage against manufacturing defects to provide confidence in product reliability.