Bosch 13566 Oxygen Sensor Heated Post-Cat Sensor - 4-Wire O2

The Bosch 13566 Super Class Oxygen Sensor delivers precise emission monitoring with advanced filtration technology designed for extended sensor life. This heated 4-wire oxygen sensor is engineered for post-catalytic converter installation, providing accurate voltage signals to your vehicle's emission control computer for optimal engine performance and fuel efficiency.

Key Features:

• Premium ceramic technology incorporates Zirconium or Titania and Yttrium for superior protection against mechanical and thermal shock
• Patented catalytically activated fine particle filter prevents contamination and ensures precise voltage output
• Dual-layer filtration system doubles protection against exhaust gas contamination for increased sensor longevity
• 11.8-inch wire length with direct plug-in connector—no cutting or splicing required
• OE-style silicone boots ensure proper fit, function, and factory appearance
• Heated sensor design for faster activation and improved cold-start performance
• Helps prevent premature catalytic converter failure by maintaining proper air-fuel ratios

Specifications:

• Sensor Type: 4-wire heated oxygen sensor
• Location: After catalytic converter (downstream/post-cat)
• Wire Length: 11.8 inches
• Product Fit: OE replacement
• Quantity: Sold individually

Rigorously tested to meet or exceed OEM performance standards, the Bosch 13566 oxygen sensor helps improve fuel economy while reducing harmful emissions. Direct-fit installation ensures quick and easy replacement with no modifications required.