Bosch 15894 Oxygen Sensor

Reliable Oxygen Sensor for Select GM and Isuzu Vehicles

The Bosch Engineered Oxygen Sensor 15894 is designed to provide accurate air-fuel mixture readings for improved engine performance and emissions control. This specific fit oxygen sensor is compatible with various Buick, Chevrolet, GMC, Isuzu, Oldsmobile, Pontiac, Saab, and Saturn models, ensuring precise operation tailored to your vehicle.

• Wiring harness length: 14 inches for flexible installation
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Heated narrow-band oxygen sensor for faster response times
• Four-wire design with pin terminal type and square male connector
• Durable steel housing with metal construction for long-lasting use
• Overall length of 17.7 inches and 16.5 inches from sealing surface to connector end

About the Bosch Engineered Oxygen Sensor Line

The Bosch Engineered Oxygen Sensor line focuses on delivering precise sensor technology that meets or exceeds OEM specifications. The 15894 part number represents a standard replacement narrow-band heated oxygen sensor engineered for specific vehicle applications. This ensures compatibility and reliable emissions control for models such as the Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and others.

Product Details and Specifications

This oxygen sensor features a four-wire heated design, which allows for quicker sensor warm-up and more accurate readings under various operating conditions. The sensor’s threaded mounting type with an 18 mm thread diameter and 22 mm hex size facilitates straightforward installation using common automotive tools. The wiring harness is 14 inches long, providing sufficient length for routing in the engine bay, and includes a square-shaped male connector with four female terminals for secure electrical connections. Constructed with a steel housing, this sensor is built to withstand harsh engine environments.

Compatible Vehicles and Common Applications

• Buick Rainier and Rendezvous
• Chevrolet Trailblazer, Colorado, and Express 1500/2500/3500
• GMC Envoy, Canyon, and Savana series
• Isuzu Ascender and Bravada
• Oldsmobile and Pontiac models including the G6 and Solstice
• Saab 9-7x and Saturn Sky

Installation Notes and Tips

• Ensure the engine is cool before removing the old oxygen sensor to avoid burns
• Use a 22 mm oxygen sensor socket or wrench for proper removal and installation
• Check the wiring harness routing to prevent contact with hot or moving parts
• Do not overtighten the sensor; torque to manufacturer specifications
• Verify connector engagement to avoid electrical faults

Quality Assurance and Warranty

The Bosch Engineered Oxygen Sensor 15894 is manufactured to meet strict quality standards, ensuring reliable performance and durability. This part is a standard replacement oxygen sensor designed to maintain proper emissions control and engine efficiency. While specific warranty details are not provided here, Bosch products typically come with a limited warranty covering defects in materials and workmanship.