Bosch 15634 Oxygen Sensor - Upstream

Reliable Oxygen Sensor for Chevrolet and Suzuki Vehicles

The Bosch Engineered Oxygen Sensor 15634 is designed specifically for select Chevrolet and Suzuki models, including the Tracker, Vitara, and XL-7. This narrow-band heated oxygen sensor ensures accurate air-fuel mixture readings to support optimal engine performance and emissions control.

• Specific fit for Chevrolet Tracker, Suzuki Vitara, and Suzuki XL-7
• Heated narrow-band oxygen sensor for precise emissions monitoring
• 7.5-inch wiring harness length with 4-wire blade terminals
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Durable metal housing with steel finish and male square connector
• Standard replacement grade with included wiring harness

About the Bosch Engineered Oxygen Sensor Line

The Bosch Engineered Oxygen Sensor line focuses on delivering reliable emission control components tailored to specific vehicle applications. The 15634 sensor is part of this line, engineered to meet OEM specifications for fit and function. Its heated narrow-band design helps maintain accurate sensor response times, contributing to efficient engine management and compliance with emission standards.

Product Details and Specifications

This oxygen sensor features a 7.5-inch wiring harness with four wires and blade-type terminals, ensuring secure electrical connections. The sensor’s mounting is threaded with an 18 mm diameter and 22 mm hex size for straightforward installation. The metal housing with a steel finish provides durability under high-temperature conditions. The sensor type is narrow-band heated, which supports precise measurement of oxygen levels in the exhaust gases. The connector is male with a square shape, and the overall length from sealing surface to connector end is approximately 10 inches.

Common Applications and Issues Addressed

• Helps correct engine running issues caused by faulty oxygen sensors
• Improves fuel efficiency by providing accurate air-fuel ratio data
• Reduces harmful emissions by enabling proper catalytic converter function
• Resolves check engine light triggers related to oxygen sensor faults
• Supports smooth engine idling and acceleration performance

Installation Notes and Tips

When installing the Bosch Engineered Oxygen Sensor 15634, ensure the vehicle is compatible with this specific part number and fitment. Use a 22 mm oxygen sensor socket for removal and installation. The threaded mounting requires proper torque to avoid damage. Verify the wiring harness connections match the vehicle’s connector type and orientation. No mounting bracket is included, so use the existing mounting point on the exhaust system.

Quality Assurance and Warranty

This Bosch oxygen sensor is manufactured to meet OEM standards for durability and performance. It is a standard replacement grade part designed to provide reliable operation over the sensor’s service life. Bosch products typically come with a limited warranty; please refer to Bosch’s official documentation for specific warranty details related to part number 15634.