Mopar 56041699AA Oxygen Sensor Before Catalyst Left

The Mopar 56041699AA is a genuine OEM oxygen sensor designed for precise emission control and optimal engine performance. This upstream oxygen sensor is positioned before the catalyst on the left side of the exhaust system, where it continuously monitors oxygen levels in the exhaust gases to help the engine control module maintain the ideal air-fuel ratio.

Key Features:

• Genuine Mopar OEM quality engineered to meet strict factory specifications
• Upstream placement (before catalyst) for accurate emission monitoring
• Left side positioning for proper fitment
• Features 18-inch pigtail connector for reliable electrical connection
• California emissions compliant for vehicles requiring CARB-certified components
• Direct replacement for original equipment ensuring proper fit and function

Oxygen sensors are critical components of modern emission control systems, helping reduce harmful emissions while maintaining fuel efficiency. A failed oxygen sensor often triggers a check engine light and can cause decreased fuel economy and increased emissions. This genuine Mopar replacement ensures your vehicle operates efficiently and meets emission standards.