O2 Oxygen Sensor Upstream Downstream for Dodge Dakota (2001-2011) 3.7L, 3.9L, 4.7L, 5.9L

Direct-Fit Replacement Oxygen Sensor Set for 2001-2011 Dodge Dakota (AN/ND)

What it Does: The Direct-Fit Oxygen Sensor Set replaces fouled pre- and post-catalytic sensors on the 2001-2011 Dodge Dakota to restore closed-loop engine management, improve fuel economy, and eliminate diagnostic trouble codes.

The Stock Dodge Dakota Sensor Degradation

Factory zirconium-dioxide sensor elements undergo severe thermal cycling and chemical contamination within the exhaust stream of the AN and ND platforms. Over time, silica glazing, carbon soot, and internal heater element burnout degrade sensor switching speed. Sluggish signal return delays powertrain control module (PCM) air-fuel trimming, causing rich running conditions, unburnt hydrocarbon build-up, premature catalytic converter failure, and chronic diagnostic codes including P0130, P0161, P0420, and P0430.

The Engineering Solution

This 4-piece sensor package restores factory signal fidelity utilizing high-grade ceramic planar substrates enclosed in dual-layer 304 stainless steel protective shields. Built with OEM-spec weather-pack connectors, terminal pin-outs, and factory-length wiring harnesses, each sensor threads directly into stock bung locations without cutting or splicing. Internal fast-acting heater circuits minimize cold-start emissions by reaching optimal closed-loop operating temperatures in seconds, preserving downstream emissions hardware across all PowerTech and Magnum powertrains.

What's Included

• 2 Upstream Oxygen Sensors
• 2 Downstream Oxygen Sensors

Technical Specifications

Compatibility

• 2001-2003 Dodge Dakota 3.9L V6 Magnum
• 2004-2011 Dodge Dakota 3.7L V6 PowerTech
• 2001-2011 Dodge Dakota 4.7L V8 PowerTech
• 2001-2003 Dodge Dakota 5.9L V8 Magnum

Frequently Asked Questions & Fitment Warnings

Does this fit the AN and ND Dodge Dakota?

Yes, this is a direct fit for 2001-2011 Dodge Dakota models equipped with the 3.7L, 3.9L, 4.7L, and 5.9L Magnum and PowerTech engines; always verify plug pin configuration before installation.

Do I need to clear stored trouble codes after installing these sensors?

Yes, clear all stored DTCs with an OBD-II scan tool after installation so the PCM can immediately reset learned fuel trim parameters.

The Dodge Truck Durability Caliber

Engineered to handle sustained exhaust gas temperatures and high-load towing demands, these sensors deliver reliable AFR readings that protect your Dakota's catalytic converters and keep fuel economy stable under payload.