HomeEmission Control > SensorsWalker 350-34291 Oxygen Sensor - Upstream
Part #: 350-34291

Walker 350-34291 Oxygen Sensor - Upstream

Walker Products Aftermarket, Upstream
32 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$51.75Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products Aftermarket, Upstream
Fitment: Chrysler and Dodge, Town & Country, Voyager, Caravan, Grand Caravan, and Grand Voyager
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 350-34291 Oxygen Sensor

The Walker 350-34291 oxygen sensor is designed specifically for Chrysler and Dodge vehicles, including Caravan, Grand Caravan, Grand Voyager, Town & Country, and Voyager models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

  • Heated oxygen sensor with 4 wires for precise signal transmission
  • Specific fit for select Chrysler and Dodge minivans
  • 12.72-inch wiring harness length for flexible installation
  • Threaded mounting type with 18.0 mm thread diameter
  • Radiused polygon female connector for secure connection
  • Overall length of 16.26 inches for proper fitment
  • 20 gauge wire for durability and reliable electrical flow

Detailed Product Description

This Walker Products Aftermarket oxygen sensor (part number 350-34291) is engineered to meet the exact specifications of your Chrysler or Dodge minivan. The heated sensor type allows for faster warm-up times, improving fuel efficiency and reducing emissions shortly after engine start. Featuring a 4-wire design, this sensor provides accurate oxygen level readings to the vehicle’s engine control unit (ECU). The 12.72-inch wiring harness length and radiused polygon female connector ensure a secure and proper fit, while the threaded mounting type with an 18.0 mm diameter allows for straightforward installation. The 20 gauge wire measurement supports consistent electrical conductivity, contributing to sensor reliability and longevity.

Compatible Vehicles and Applications

  • Chrysler Caravan
  • Chrysler Grand Caravan
  • Dodge Grand Voyager
  • Chrysler Town & Country
  • Dodge Voyager

This oxygen sensor is designed for specific fitment on these models, ensuring compatibility and optimal performance.

Common Issues Addressed by This Oxygen Sensor

  • Check engine light triggered by faulty oxygen sensor readings
  • Poor fuel economy due to incorrect air-fuel mixture
  • Increased emissions failing vehicle inspections
  • Engine hesitation or rough idling caused by sensor malfunction
  • Reduced engine performance and drivability problems

Installation Notes and Tips

When installing the Walker 350-34291 oxygen sensor, ensure the engine is cool to avoid burns. Use the correct tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector type matches the vehicle harness before installation. The 12.72-inch wiring harness length provides flexibility, but routing should avoid heat sources and moving parts. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper sensor operation.

Quality Assurance and Warranty

Walker Products Aftermarket parts are manufactured to meet or exceed OEM standards. The 350-34291 oxygen sensor undergoes rigorous testing to ensure durability and accurate performance. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship, providing confidence in the sensor’s reliability for your Chrysler or Dodge vehicle.

BrandWalker
Part Number350-34291
PositionWalker Products Aftermarket, Upstream
Connector GenderFemale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length16.26
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length12.72

This part fits 32 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2003ChryslerTown & Country3.8LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2003ChryslerTown & Country3.3LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2003ChryslerTown & Country3.3LV6FLEXUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2003ChryslerVoyager3.3LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2003ChryslerVoyager3.3LV6FLEXUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2003DodgeCaravan3.3LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2003DodgeCaravan3.3LV6FLEXUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2003DodgeGrand Caravan3.8LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2003DodgeGrand Caravan3.3LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2003DodgeGrand Caravan3.3LV6FLEXUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2002ChryslerGrand Voyager3.8LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2002ChryslerTown & Country3.8LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2002ChryslerTown & Country3.3LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2002ChryslerTown & Country3.3LV6FLEXUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2002ChryslerVoyager3.3LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2002ChryslerVoyager3.3LV6FLEXUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2002DodgeCaravan3.3LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2002DodgeCaravan3.3LV6FLEXUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2002DodgeGrand Caravan3.8LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2002DodgeGrand Caravan3.3LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2002DodgeGrand Caravan3.3LV6FLEXUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2001ChryslerGrand Voyager3.8LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2001ChryslerTown & Country3.8LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2001ChryslerTown & Country3.3LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2001ChryslerTown & Country3.3LV6FLEXUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2001ChryslerVoyager3.3LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2001ChryslerVoyager3.3LV6FLEXUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2001DodgeCaravan3.3LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2001DodgeCaravan3.3LV6FLEXUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2001DodgeGrand Caravan3.8LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2001DodgeGrand Caravan3.3LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
2001DodgeGrand Caravan3.3LV6FLEXUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.