Bosch 15388 Oxygen O2 Sensor – Chevy Cobalt HHR Solstice (2007–2010)

Bosch 15388 Oxygen Sensor for Chevrolet & Pontiac Vehicles The Bosch 15388 oxygen (O₂) sensor is designed to restore proper air-fuel mixture control in 2007–2010 Chevrolet Cobalt, Chevrolet HHR, and Pontiac Solstice models. This sensor monitors oxygen levels in the exhaust stream and sends precise data to the engine control module (ECM), allowing real-time fuel adjustments for optimal combustion. Manufactured to OEM specifications, the Bosch 15388 provides fast response, high accuracy, and long service life even under extreme exhaust temperatures. Replacing a failing oxygen sensor helps eliminate check engine lights, improve throttle response, and protect the catalytic converter from damage. Key Features & Benefits OE-quality Bosch oxygen sensor Accurate air-fuel ratio measurement Improves fuel efficiency and engine performance Reduces exhaust emissions Durable construction for high-temperature operation Direct-fit replacement with factory connector Helps prevent catalytic converter failure Engine Compatibility Gasoline engines (verify engine size by VIN) Vehicle Applications Chevrolet Cobalt: 2007, 2008, 2009, 2010 Chevrolet HHR: 2007, 2008, 2009, 2010 Pontiac Solstice: 2007, 2008, 2009, 2010 (Position may vary—verify upstream or downstream fitment before ordering) Frequently Asked Questions – Bosch 15388 Oxygen Sensor What does an oxygen sensor do? An oxygen sensor measures exhaust oxygen levels and helps the engine control module adjust the air-fuel mixture. Which vehicles does this Bosch 15388 fit? This sensor fits 2007–2010 Chevrolet Cobalt, Chevrolet HHR, and Pontiac Solstice models. What are the symptoms of a bad O₂ sensor? Common symptoms include poor fuel economy, check engine light, rough idle, and increased emissions. Is this an OEM-quality part? Yes, Bosch manufactures this sensor to meet or exceed original equipment specifications. Is installation difficult? No, this is a direct-fit replacement and installs easily with standard tools. Should oxygen sensors be replaced in pairs? It is recommended to replace sensors in pairs if mileage is high to ensure consistent performance. SKU: FDP-15388 Category: Turbo-P Tags: Bosch 15388 oxygen sensor, Chevy Cobalt O2 sensor, exhaust oxygen sensor, HHR oxygen sensor, OE oxygen sensor, Pontiac Solstice O2 sensor