BLPextrm Oxygen O2 Sensor Pair for Dodge Charger Challenger 2006–2020 — Upstream & Downstream, Stainless Steel

BLPextrm Oxygen O2 Sensor set delivers upstream and downstream sensor replacements engineered to restore accurate exhaust oxygen readings for Dodge, Chrysler, Jeep and Ram models from 2004–2020.

These two oxygen sensors (upstream and downstream) are built with a stainless-steel housing, a protective aluminum-oxide trap layer and pre-coated threads to match common OE fit and function. They measure exhaust oxygen content and send voltage signals to the engine control module so your vehicle can maintain efficient air-fuel control. This kit is sold as a pair and covers many Chrysler Group V6 and V8 engine applications—confirm fitment by year and part number before ordering.

Which vehicles and engines will these sensors fit?

BLPextrm designed this O2 sensor pair to be compatible with numerous Chrysler, Dodge, Jeep and Ram models. Coverage includes both upstream (pre-catalytic converter) and downstream (post-catalytic converter) positions across multiple engine displacements. Always compare the listed replacement part numbers or your existing sensor to ensure a correct match.

• Compatible models: Chrysler 200, 300, Pacifica, Town & Country; Dodge Charger, Challenger, Durango, Grand Caravan; Jeep Grand Cherokee, Wrangler; Ram 1500/2500.
• Engine sizes: 3.6L, 5.7L, 6.4L across model years primarily 2004–2020 where specified.
• Cross-reference numbers: includes 56029084AA, 56041698AA, 234-4587, 234-4593, 234-4653 and many OEM/aftermarket codes.

How does a replacement O2 sensor affect driving performance?

Oxygen sensors provide the engine computer with data to balance fuel and air for combustion. Replacing worn or failing sensors helps the ECU regain accurate closed-loop control, which can stabilize idle, reduce roughness and support smoother acceleration—though results depend on the vehicle’s overall condition.

• Restores correct air–fuel ratio feedback to the engine computer.
• Can improve idle stability and reduce hesitations under load.
• Supports proper catalytic converter monitoring by the downstream sensor.

What are the technical features and construction details?

This BLPextrm pair uses a stainless-steel shell and a platinum electrode protected by an aluminum-oxide trap (capture) layer. Threads arrive pre-coated to help seal and ease installation. The sensor converts oxygen concentration into a voltage signal that the ECU interprets for fuel control.

• Durable stainless-steel housing for corrosion resistance.
• Aluminum-oxide trap layer to shield the sensing element from contaminants.
• Pre-coated threads for improved sealing and installation reliability.

How do I confirm fitment and install these sensors?

Before purchasing, verify model year, engine size and existing sensor part numbers. The kit includes two sensors for both upstream and downstream positions; installation typically requires an oxygen-sensor socket and standard hand tools. If you are not comfortable working under the vehicle, consult a professional mechanic.

• Compare the sensor part numbers listed with your current sensor or vehicle service manual.
• Use an O2 sensor socket and torque to manufacturer specifications on installation.
• Clear any stored diagnostic trouble codes after installation and test drive to confirm operation.

Who is this for: This BLPextrm oxygen sensor pair is intended for owners and technicians servicing mid-2000s through late-2010s Chrysler Group vehicles who need reliable upstream and downstream sensor replacements. It’s suitable for DIY mechanics familiar with under-car work and professional shops seeking an OE-style aftermarket option. Confirm vehicle compatibility and cross-reference part numbers prior to purchase to ensure proper fit and performance.