Walker
Walker Products Aftermarket

Walker 350-34171 Oxygen Sensor

Brand Walker 350-34171
Position Downstream Left, Upstream Right, Upstream Left, and Downstream Right
Wiring Harness Length 15.87
Wire Gauge Measurement 20
Sensor Type Heated
Universal Or Specific Fit Specific
Wire Quantity 4
Connector Shape Radiused polygon
Connector Gender Female
Thread Diameter 18.0
Overall Length 19.41
Mounting Type Threaded
Product line Walker Products Aftermarket
Fits Dodge and Jeep · 26 vehicles

OE replacement. Engineered for specific application fit and ECU feedback.

Heated sensor. Helps deliver faster, more consistent oxygen sensing.

Threaded mount. Installs with a secure, direct-fit connection.

$39.08Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $39.08
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Walker Oxygen Sensor for OE-Style Engine Feedback

Walker Products Aftermarket oxygen sensor Part Number 350-34171 is a specific-fit heated sensor built for accurate ECU feedback on select Dodge and Jeep applications. It is engineered as an OE-style replacement for vehicles that need reliable air-fuel monitoring, emissions control, and fault-code support.

  • Heated oxygen sensor design for faster operating temperature
  • Specific fitment for the listed upstream and downstream positions
  • 4-wire configuration with female connector
  • Threaded mounting type with 18.0 mm thread diameter
  • Wiring harness length: 15.87 in.; overall length: 19.41 in.
  • Connector shape: radiused polygon

Walker Products Aftermarket Sensor Line

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors engineered for direct replacement use. Part Number 350-34171 follows that approach with application-specific fitment, position-specific calibration, and feedback intended to match the needs of the vehicle’s ECU. This makes it a practical choice for Dodge Ram 1500 oxygen sensor replacement, Jeep Grand Cherokee upstream right sensor service, and Dodge Durango downstream left sensor repair.

Compatible With select 2001-2004 Jeep Grand Cherokee, 2001-2002 Dodge Durango, 2001-2002 Dodge Ram 1500, and 2001 Dodge Dakota applications. This part cross-references a limited number of aftermarket listings for the same application.

Common Issues This Sensor Can Address

  • Check engine light or malfunction indicator light related to oxygen sensor performance
  • Poor engine operation caused by incorrect air-fuel ratio feedback
  • Increased fuel consumption from inaccurate exhaust oxygen readings
  • Higher exhaust emissions from delayed or faulty sensor response
  • Stored ECU fault codes tied to the affected sensor circuit or system

Installation Notes and Fitment Tips

  • Fits 2001-2004 Jeep Grand Cherokee, upstream right.
  • Fits 2002 Dodge Durango, downstream left, with or without Next Gen. Eng. Controller, Calif ESV.
  • Fits 2002 Dodge Ram 1500, upstream right, upstream left, downstream right, or downstream left depending on emissions package and position.
  • Fits 2001 Dodge Dakota, downstream left.
  • Inspect the sensor, wiring harness, and connector for physical damage before installation.
  • Confirm the required position and emissions configuration before ordering, especially for California and non-California applications.

Quality Assurance

Walker Products states that its engine management sensors are manufactured for specific vehicle applications and fitment positions, with ISO 9001/TS 16949 quality system certification supporting production consistency. Part Number 350-34171 is built to provide the diagnostic feedback expected by the ECU on the listed vehicles.

This part fits 26 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelTransmissionLitersCylindersFuel TypePositionNotes
2004JeepGrand Cherokee—4.7LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products Aftermarket
2003JeepGrand Cherokee—4.7LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products Aftermarket
2002DodgeDurango—4.7LV8GASDownstream Leftw/ Next Gen. Eng. Controller, Calif ESV; con módulo de control del motor de de nueva generación , California ESV; Downstream; Left; Walker Products Aftermarket
2002DodgeDurango—4.7LV8GASDownstream LeftDownstream Left Oxygen Sensor fitment note: w/o Next Gen. Eng. Controller, Calif ESV.; Walker Products Aftermarket
2002DodgeDurango—4.7LV8GASDownstream Leftw/ Next Gen. Eng. Controller, Calif ESV; Downstream; Left; Walker Products Aftermarket
2002DodgeDurango—4.7LV8GASDownstream Leftw/o Next Gen. Eng. Controller, Calif ESV; Downstream; Left; Walker Products Aftermarket
2002DodgeRam 1500Manual4.7LV8GASUpstream RightCalifornia emissions; upstream right position; Walker Products Aftermarket
2002DodgeRam 1500Manual4.7LV8GASUpstream RightNon Calif-ESV/No Calif-ESV/Upstream/Right; Walker Products Aftermarket
2002DodgeRam 1500Manual4.7LV8GASUpstream LeftCalifornia CARB E.O. approved Upstream Left Oxygen Sensor; Walker Products Aftermarket
2002DodgeRam 1500Manual4.7LV8GASUpstream LeftNon-California ESV Upstream Left Oxygen Sensor; Walker Products Aftermarket
2002DodgeRam 1500Manual4.7LV8GASDownstream RightDownstream Right Oxygen Sensor for non-California and California ESV models.; Walker Products Aftermarket
2002DodgeRam 1500Manual4.7LV8GASDownstream LeftNon Calif-ESV; No Calif-ESV; Downstream; Left; Walker Products Aftermarket
2002DodgeRam 1500Manual4.7LV8GASDownstream LeftCalif-ESV Downstream Left Oxygen Sensor; Walker Products Aftermarket
2002DodgeRam 1500Automatic4.7LV8GASDownstream RightDownstream Right Oxygen Sensor for non-California and California ESV models.; Walker Products Aftermarket
2002DodgeRam 1500Automatic4.7LV8GASDownstream LeftNon Calif-ESV; No Calif-ESV; Downstream; Left; Walker Products Aftermarket
2002DodgeRam 1500Automatic4.7LV8GASDownstream LeftCalif-ESV Downstream Left Oxygen Sensor; Walker Products Aftermarket
2002DodgeRam 1500Manual4.7LV8GASUpstream RightNon California emissions Upstream Right position Oxygen Sensor; Walker Products Aftermarket
2002DodgeRam 1500Manual4.7LV8GASUpstream LeftFor vehicles outside of California emissions standards, this oxygen sensor is compatible as the upstream sensor on the left side.; Walker Products Aftermarket
2002DodgeRam 1500Manual4.7LV8GASDownstream RightNon Calif-ESV; Downstream; Right; Walker Products Aftermarket
2002DodgeRam 1500Manual4.7LV8GASDownstream LeftNon Calif-ESV; Downstream; Left; Walker Products Aftermarket
2002DodgeRam 1500Automatic4.7LV8GASDownstream RightNon Calif-ESV; Downstream; Right; Walker Products Aftermarket
2002DodgeRam 1500Automatic4.7LV8GASDownstream LeftNon Calif-ESV; Downstream; Left; Walker Products Aftermarket
2002JeepGrand Cherokee—4.7LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products Aftermarket
2001DodgeDakotaAutomatic4.7LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2001DodgeDurango—4.7LV8GASDownstream LeftCalif-ESV Downstream Left Oxygen Sensor; Walker Products Aftermarket
2001JeepGrand Cherokee—4.7LV8GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products Aftermarket