Mopar 56041944AA Oxygen Sensor

Mopar Oxygen Sensor 56041944AA

Restore accurate exhaust oxygen readings with this Mopar oxygen sensor, part number 56041944AA. It is a direct-fit emission control sensor for select Dodge and Jeep applications, including before-catalyst locations on the 2003 Dodge Dakota, 2003 Dodge Ram 1500, and 2001 Jeep Wrangler.

Key Features

• Mopar OE replacement oxygen sensor for emission control service
• Before-catalyst application for upstream exhaust monitoring
• Fits 2003 Dodge Dakota, N/A
• Fits 2003 Dodge Ram 1500, N/A
• Fits 2001 Jeep Wrangler, N/A
• Supersedes part number 56031110AA

Detailed Description

This Mopar 56041944AA oxygen sensor monitors exhaust oxygen content before the catalytic converter so the engine control system can adjust fuel delivery and maintain proper air-fuel balance. For Dodge Dakota, Dodge Ram 1500, and Jeep Wrangler applications, the sensor supports accurate feedback for drivability and emissions-related operation. If you are replacing a worn upstream sensor on a 2003 Dodge Dakota, 2003 Dodge Ram 1500, or 2001 Jeep Wrangler, this OE-style Mopar part number 56041944AA matches the listed fitment.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Rough idle caused by inaccurate exhaust feedback
• Reduced fuel economy from incorrect air-fuel correction
• Emissions test failures tied to upstream sensor faults
• Slow or inconsistent sensor response during closed-loop operation

Installation Notes and Tips

Verify the sensor location before installation; this listing is for before-catalyst use. Confirm connector style, routing, and thread condition against the removed part before service. Clear diagnostic trouble codes after installation and perform a road test to confirm normal operation.

Quality Assurance

Mopar parts are built to OE specifications for Chrysler, Dodge, Jeep, and Ram applications. Part number 56041944AA supersedes 56031110AA for the listed vehicles.