SFYAUTO Oxygen O2 Sensor Set 2-Piece for Chrysler Dodge Jeep Ram — Upstream & Downstream Direct Fit

These two SFYAUTO oxygen (O2) sensors are direct-replacement upstream and downstream sensors engineered to restore accurate air-fuel readings for compatible Chrysler, Dodge, Jeep and Ram engines.

Installed sensors monitor exhaust oxygen levels so the engine computer can adjust fuel trim for efficient combustion. This SFYAUTO 2-piece set replaces OE-style part numbers 234-4587, 05149171AA and 68144248AA and fits numerous models and years, including Chrysler 200 and 300, Dodge Charger, Durango and Dakota, Jeep Grand Cherokee, Wrangler, Commander and Ram 1500 variants. Each sensor is built for straightforward installation and reliable signal response in the original sensor locations.

Which vehicles and engine positions does this SFYAUTO O2 sensor pair fit?

These sensors are matched to specific model years and engine placements across Chrysler, Dodge, Jeep and Ram lineups. The listing includes upstream (pre-catalytic converter) and downstream (post-catalytic converter) fitments where noted. Always cross-check your vehicle's year, engine size and existing sensor location to confirm compatibility.

• Chrysler: 200 (2011–2017), 300 (2005–2012), Town & Country (2011–2016)
• Dodge: Charger (2006–2012), Durango (2004–2009), Dakota (2004–2010)
• Jeep: Commander (2006–2010), Liberty (2004–2012), Grand Cherokee (2004–2010), Wrangler (2004–2011)
• Ram 1500: Multiple fitments 2004–2010 with 3.7, 4.7, 5.7 and 8.3L engines — upstream and/or downstream as specified

How do these replacement sensors affect drivability and diagnostics?

Replacing a failing O2 sensor can eliminate rough idle, poor fuel economy and limp-home performance that result from incorrect oxygen readings. A new sensor returns accurate voltage or frequency signals to the engine control unit, allowing fuel trims and ignition timing to normalize. It can also clear OBD-II codes related to oxygen sensor performance when the repair matches the diagnostic result.

• Restores precise air-fuel mixture feedback to the ECU
• Helps resolve common O2-related trouble codes (P013x / P014x series)
• May improve fuel economy and throttle response when sensor was degraded

What should I know about installation and fitment verification?

These SFYAUTO sensors are designed for direct-fit installation using the vehicle's original wiring harness and threaded bung. Installation typically requires an O2 sensor socket and basic hand tools; the job can be DIY-friendly for mechanically inclined owners. Verify you have the correct upstream or downstream sensor by comparing part numbers or location before removing the old sensor.

• Threaded OE-style mounting for straightforward swap-in
• Tool tip: use anti-seize on threads if not pre-applied
• Confirm vehicle year, engine displacement and sensor position prior to purchase

What quality and warranty expectations come with SFYAUTO sensors?

SFYAUTO supplies aftermarket sensors engineered to meet common OE fit and function standards for the listed part numbers. Quality controls typically include sensor element responsiveness and connector reliability to withstand exhaust temperatures. For peace of mind, check seller warranty and return policy details; contact the retailer if you encounter fitment questions or early failures.

• Built to meet standard aftermarket durability and signal performance
• Connector and harness compatibility designed for listed models
• Review seller-specific warranty or exchange terms before installation

Who is this for: Vehicle owners or technicians who need a matched pair of upstream and downstream O2 sensors for mid-2000s to early-2010s Chrysler, Dodge, Jeep and Ram models. Ideal for DIY mechanics replacing worn or malfunctioning sensors, fleet service shops performing scheduled repairs, or anyone clearing oxygen-sensor-related diagnostic trouble codes. Confirm your vehicle’s year, engine type and sensor position against the fitment list before ordering to ensure a correct replacement.