Bosch 0 258 986 729 Lambda Oxygen Sensor 4-Wire Heated

The Bosch 0 258 986 729 is a premium 4-wire heated lambda sensor (oxygen sensor) designed for precise exhaust emissions monitoring and fuel mixture control. This diagnostic probe-type sensor is engineered to mount downstream of the catalytic converter, where it continuously monitors oxygen levels in the exhaust stream to help the engine control unit maintain optimal air-fuel ratios.

Key Features:

• 4-wire heated design for faster operation and accurate readings in all conditions
• 340mm (13.4 inch) total length for versatile installation
• Advanced ceramic element technology for consistent performance under extreme temperatures
• Stainless steel construction for durability and corrosion resistance
• Vehicle-specific connector for direct OE replacement fitment
• Recommended service interval of 250,000 km (155,000 miles)

Bosch invented the automotive oxygen sensor and has manufactured over 1 billion units since 1976. Every Bosch lambda sensor benefits from decades of OE development and rigorous factory testing to ensure reliable operation and long service life. This sensor helps improve fuel efficiency, reduce emissions, and maintain optimal engine performance by providing accurate air-fuel ratio feedback to the vehicle's ECU.