Bosch 13599 Oxygen Sensor Heated Post-Catalytic Converter - 4-Wire

The Bosch 13599 oxygen sensor delivers OE-quality performance for precise emission control and fuel efficiency. This heated 4-wire oxygen sensor is designed for passenger side installation after the catalytic converter, providing critical feedback to your engine's computer for optimal air-fuel ratio management.

Key Features:

• Premium ceramic technology with Zirconium or Titania and Yttrium construction for superior protection against mechanical and thermal shock
• Patented catalytically activated fine particle filter prevents contamination and ensures precise voltage signals
• Dual-filter design doubles protection against exhaust gas contamination for extended sensor life
• 24-inch wire length with direct plug-in connector—no cutting or splicing required
• OE-style silicone boots ensure proper fit, function, and appearance
• Heated 4-wire design for fast activation and accurate readings
• Helps prevent premature catalytic converter failure by maintaining optimal emissions control

Rigorously tested to meet or exceed OEM specifications, this Bosch oxygen sensor helps maintain fuel economy, reduce emissions, and ensure smooth engine performance. Direct replacement design makes installation straightforward with factory-style connectors.