Bosch 15388 Oxygen Sensor - Upstream

Reliable Oxygen Sensor for Chevrolet, Pontiac, and Saturn Models

The Bosch Actual OE Oxygen Sensor 15388 is designed to provide accurate air-fuel mixture readings for improved engine performance and emissions control. Specifically engineered for Chevrolet Cobalt, Pontiac G5, Saturn Sky, and Chevrolet HHR and Solstice models, this sensor ensures precise fit and function.

• Heated wide-band oxygen sensor for faster response times
• Specific fit for select Chevrolet, Pontiac, and Saturn vehicles
• 12.5-inch wiring harness with oblong male connector
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Durable metal housing with steel finish
• Includes wiring harness with 5 wires and 6 terminals (blade type, male gender)
• Overall length of 15.9 inches for proper installation

About the Bosch Actual OE Oxygen Sensor Product Line

The Bosch Actual OE Oxygen Sensor line is designed to meet original equipment specifications, providing a standard replacement option that maintains factory performance. This product line focuses on delivering reliable sensor operation with precise fitment and durable construction, making it suitable for emission control systems in various GM vehicles including Chevrolet, Pontiac, and Saturn models.

Product Details and Specifications

This Bosch oxygen sensor features a heated wide-band design, which allows for quicker sensor warm-up and more accurate air-fuel ratio measurements. The sensor includes a 12.5-inch wiring harness with an oblong male connector and blade-type terminals, ensuring secure electrical connections. 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, compatible with the specified GM vehicles. The overall length of 15.9 inches and a wire length of 14.7 inches from sealing surface to connector end facilitate proper installation without modification.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for improved fuel efficiency
• Resolves check engine light codes related to oxygen sensor failure
• Helps reduce vehicle emissions by maintaining proper air-fuel mixture
• Improves engine performance and drivability in Chevrolet Cobalt, Pontiac G5, Saturn Sky, Chevrolet HHR, and Solstice
• Replaces faulty or damaged oxygen sensors to prevent engine misfires

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. Use a 22 mm oxygen sensor socket for removal and installation. Verify the sensor’s wiring harness length and connector type match the vehicle’s factory setup. Do not overtighten the sensor; torque to manufacturer specifications. Inspect the mounting threads for damage and clean the mounting hole before installation.

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. This sensor is a standard replacement part designed to maintain factory emission control system operation. While specific warranty details may vary, Bosch typically offers coverage against defects in materials and workmanship for a defined period. Refer to Bosch documentation for exact warranty terms.