O2 Oxygen Sensor Upstream Downstream for Dodge Avenger (2011-2014) 3.6L

Direct-Fit Upstream & Downstream O2 Sensor Kit for 2011-2014 Dodge Avenger (JS)

What it Does: This 4-piece O2 sensor kit restores closed-loop air-fuel telemetry and catalyst monitoring on 2011-2014 Dodge Avenger (JS) models equipped with the ERB 3.6L Pentastar V6.

The Stock Dodge Avenger Sensor Failure

Factory oxygen sensors on the JS chassis ERB 3.6L Pentastar V6 suffer from severe exhaust heat soak, causing internal heater circuit failure and zirconia sensing element poisoning. Carbon soot, fuel additives, and oil vapors coat the porous ceramic tip, slowing voltage transitions between rich and lean states. Degraded sensor output triggers P0133, P0153, P0031, or P0420/P0430 fault codes and forces the ECU into open-loop fueling.

Common Symptoms of a Failing OEM Oxygen Sensor

• Check Engine Light & DTCs: Triggers slow-response, heater circuit, or catalyst codes like P0133, P0037, and P0420/P0430.
• Rich Running & Rough Idle: Skewed lambda signals over-fuel cylinders, causing hesitation and rough idling.
• Poor MPG & Emissions Failure: Open-loop operation increases fuel consumption and tailpipe emissions.

The Direct-Fit Zirconia Oxygen Sensor Solution

This matched 4-sensor kit includes two upstream and two downstream units calibrated specifically for the ERB 3.6L Pentastar V6. Each sensor pairs a rapid-heating internal element with a high-purity zirconia ceramic core inside a corrosion-resistant stainless steel housing. Direct-fit electrical connectors and factory-length harnesses plug straight into the JS chassis wiring without splicing, restoring accurate millivolt switching and closed-loop ECU fuel trim control.

What's Included

• 2 Upstream Oxygen Sensors
• 2 Downstream Oxygen Sensors

Technical Specifications

Compatibility

• 2011-2014 Dodge Avenger 3.6L

Frequently Asked Questions & Fitment Warnings

Does this fit the JS Avenger?

Yes. This is a direct fit for the 2011-2014 Dodge Avenger equipped with the ERB 3.6L Pentastar V6 engine. Excludes 2.4L 4-cylinder engines; confirm 3.6L fitment before ordering.

Will this clear P0133 and sensor-triggered P0420/P0430 codes?

Yes, if sensors are at fault. Replacing all four ERB 3.6L Pentastar V6 sensors restores Bank 1/Bank 2 fuel trims and catalyst monitoring.

Does installation require wiring modification?

No. These direct-fit sensors plug into the factory JS harness; clean bung threads prior to installation.

The Dodge Precision Standard

Engineered for accurate closed-loop ECU feedback and emissions compliance on JS sedans. Matched four-corner response restores factory fuel economy and CEL-free operation.