Bosch 0258017187 Premium Oxygen Sensor - 5-Wire

The Bosch 0258017187 oxygen sensor is a premium OE-quality emissions control sensor designed to monitor oxygen content in exhaust gases and provide critical air-fuel ratio feedback to the engine control unit. This 5-wire sensor features a high-quality zirconia ceramic element with integrated heater for fast response times and accurate lambda readings.

Key Features:

• 5-pole design with 500mm (19.7 inch) overall length for extended reach applications
• Double laser-welded stainless steel body that is fully submersible and sealed against exhaust emissions
• Fast-acting integrated heater element reaches operating temperature within seconds for optimal performance
• Factory tested to 100% functionality ensuring Bosch's rigorous quality standards
• Utilizes proven zirconia Nernst cell technology for precise oxygen measurement

Performance Benefits:

• Up to 15% fuel savings compared to worn or faulty oxygen sensors
• Helps prevent expensive catalytic converter damage through proper air-fuel control
• Ensures compliance with stringent emissions standards
• Improves engine performance and throttle response

As the original inventor of the automotive oxygen sensor in the late 1960s, Bosch continues to set the industry standard for quality and reliability. This sensor delivers OE-specification performance backed by decades of manufacturing expertise. Symptoms of a failing oxygen sensor include poor fuel economy, rough idle, check engine light illumination, increased emissions, and sluggish acceleration.