Bosch 15320 Oxygen Sensor Heated Universal Sensor - 4-Wire O2

The Bosch 15320 Oxygen Sensor delivers precise air-fuel ratio monitoring for optimal engine performance and emissions control. This universal 4-wire heated oxygen sensor is designed to mount before the catalytic converter, providing critical feedback to your vehicle's engine control module for efficient combustion and reduced emissions.

Key Features:

• Premium ceramic technology incorporating 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 for extended sensor life
• Dual-filter design provides double protection against exhaust gas contamination
• 4-wire heated design ensures rapid warm-up and accurate readings in all driving conditions
• OE-style silicone boots ensure proper fit, function, and appearance
• Direct plug-in installation with no cutting or splicing required
• Helps prevent premature catalytic converter failure by maintaining optimal air-fuel ratios
• Rigorously tested to deliver perfect performance while improving fuel economy

This universal oxygen sensor is an OE-quality replacement that meets or exceeds original equipment specifications. The heated design allows the sensor to reach operating temperature quickly, ensuring accurate emissions monitoring from startup. Bosch's advanced filtration system protects the sensitive ceramic element from contaminants that can cause premature failure, making this sensor a reliable choice for maintaining your vehicle's performance and passing emissions tests.