Bosch 12008 Oxygen Sensor - Upstream

Reliable Oxygen Sensor for Jeep Cherokee, Comanche, Wagoneer, and Wrangler

The Bosch Validated Oxygen Sensor 12008 is designed specifically for select Jeep models, ensuring precise emission control and optimal engine performance. This narrow-band heated oxygen sensor offers a direct fit for Jeep Cherokee, Comanche, Wagoneer, and Wrangler vehicles, providing accurate air-fuel mixture readings.

• Specific fit for Jeep Cherokee, Comanche, Wagoneer, and Wrangler
• Narrow-band heated oxygen sensor for accurate emissions monitoring
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Includes an 8.8-inch wiring harness with 3-pin female connectors
• Durable metal housing with steel finish and 12.2-inch overall length
• Standard replacement grade with a 3-wire configuration

About the Bosch Validated Oxygen Sensor Line

The Bosch Validated Oxygen Sensor product line focuses on delivering reliable emission control components that meet or exceed OEM specifications. The 12008 sensor is engineered to provide consistent performance and durability, making it a suitable replacement part for maintaining factory-level emissions standards in Jeep vehicles.

Product Details and Specifications

This Bosch oxygen sensor features a narrow-band design with heating elements to ensure rapid sensor response and accurate air-fuel ratio detection. The sensor’s metal housing and steel finish provide durability under harsh engine conditions. It mounts via a threaded connection with an 18 mm diameter and 22 mm hex size for easy installation. The wiring harness is 8.8 inches long and includes a 3-wire, 3-pin female connector with an oblong shape, ensuring a secure and specific fit for the intended Jeep models. The overall length of the sensor is 12.2 inches, with a sealing surface to connector length of 11 inches.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for improved fuel efficiency
• Helps resolve check engine light triggers related to oxygen sensor faults
• Reduces emissions by providing precise air-fuel mixture data
• Prevents rough idling and engine performance issues caused by faulty sensors
• Supports proper catalytic converter function by maintaining correct sensor readings

Installation Notes and Tips

Ensure the vehicle is cool before removing the old oxygen sensor to avoid burns. Use a 22 mm oxygen sensor socket for removal and installation. Verify the wiring harness length and connector type match the vehicle’s factory setup. The threaded mounting type requires proper torque to avoid leaks or damage. No mounting bracket is included, so use the existing mounting point on the vehicle.

Quality Assurance and Warranty

The Bosch Validated Oxygen Sensor 12008 is manufactured to meet OEM standards for fit, form, and function. Bosch provides quality assurance through rigorous testing to ensure reliable operation in emission control systems. Warranty details should be confirmed with the point of purchase or Bosch directly.