Bosch 13320 Oxygen Sensor Heated Sensor - 4-Wire O2

The Bosch 13320 Oxygen Sensor delivers precise emissions monitoring with advanced filtration technology designed to maximize sensor life and engine performance. This heated 4-wire oxygen sensor is engineered as a direct OE replacement for pre-catalytic converter applications.

Key Features:

• Premium ceramic construction utilizing Zirconium or Titania and Yttrium for superior protection against mechanical and thermal shock
• Patented catalytically activated fine particle filter prevents contamination and ensures accurate voltage signals to the engine's emission control computer
• Dual-filter design provides enhanced protection against exhaust gas contamination for extended sensor life
• Heated 4-wire design for faster sensor activation and improved cold-start performance
• OE-style silicone boots ensure proper fit, function, and appearance
• Direct plug-in installation with no cutting or splicing required
• 11.8-inch wire harness length for flexible routing

Bosch oxygen sensors help prevent premature catalytic converter failure while optimizing fuel economy and reducing emissions. Rigorously tested to meet OE specifications, this sensor delivers reliable performance and precise air-fuel ratio monitoring for your vehicle's engine management system.