Bosch 13747 Oxygen Sensor Heated Sensor - 4-Wire O2

The Bosch 13747 Oxygen Sensor is a premium 4-wire heated O2 sensor designed for installation after the catalytic converter. This direct-fit OE replacement sensor delivers precise voltage readings to your engine's emission control computer, helping maintain optimal fuel efficiency and preventing premature catalytic converter failure.

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 extended sensor life
• Dual filter system provides double protection against exhaust gas contamination
• 4-wire heated design for faster warm-up and more accurate readings
• 25-inch wire length with OE-style silicone boots for proper fit and appearance
• Direct plug-in installation with no cutting or splicing required
• Rigorously tested for reliable performance and fuel cost savings

This sensor mounts in the exhaust pipe after the catalytic converter and provides the critical feedback your vehicle's computer needs to maintain proper air-fuel ratios and meet emissions standards. Sold individually as an OE replacement part.