HomeEmission Control > SensorsWalker 350-34103 Oxygen Sensor - Upstream
Part #: 350-34103

Walker 350-34103 Oxygen Sensor - Upstream

Walker Products Aftermarket, Upstream
4 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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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: Dodge, B150 and B250
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 350-34103 Oxygen Sensor for Dodge B150 and B250

The Walker 350-34103 oxygen sensor is designed specifically for Dodge B150 and B250 models, providing precise emission control monitoring. This heated oxygen sensor ensures accurate air-fuel mixture readings to maintain optimal engine performance and emissions compliance.

  • Heated oxygen sensor type for faster response times
  • Specific fit for Dodge B150 and B250 vehicles
  • 56.42-inch wiring harness length for flexible installation
  • 20 gauge wire measurement with 4 wires for reliable signal transmission
  • Radiused polygon female connector for secure connection
  • Threaded mounting type with 18.0 mm thread diameter
  • Overall length of 59.96 inches for proper fitment

Walker Products Aftermarket Line Details

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing replacement emission control components engineered to meet or exceed OEM specifications. The Walker Products Aftermarket sensors are designed to deliver consistent performance and durability, making them suitable for specific vehicle applications such as the Dodge B150 and B250.

Product Description and Specifications

The Walker 350-34103 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The sensor includes a 56.42-inch wiring harness with 20 gauge wires and a total of four wires, ensuring accurate data transmission to the engine control unit. Its radiused polygon female connector and threaded mounting with an 18.0 mm diameter provide a secure and precise fit. The overall length of 59.96 inches accommodates proper installation within the vehicle’s exhaust system.

Common Applications and Issues Addressed

  • Helps maintain proper air-fuel ratio for Dodge B150 and B250 engines
  • Reduces engine misfires and rough idling caused by faulty oxygen sensors
  • Improves fuel economy by providing accurate oxygen level readings
  • Supports emission system compliance by monitoring exhaust gases
  • Prevents check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Walker 350-34103 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct socket size for the 18.0 mm threaded sensor to prevent damage. Verify the radiused polygon female connector matches the vehicle harness for a secure connection. Route the 56.42-inch wiring harness carefully to avoid contact with hot or moving parts. Follow vehicle-specific torque specifications for mounting to ensure proper sealing and sensor function.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards for durability and performance. While specific warranty details for part number 350-34103 should be confirmed at the point of purchase, Walker typically offers coverage against defects in materials and workmanship to support long-term reliability in Dodge B150 and B250 applications.

BrandWalker
Part Number350-34103
PositionWalker Products Aftermarket, Upstream
Connector GenderFemale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length59.96
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length56.42

This part fits 4 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1989DodgeB1503.9LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
1989DodgeB2503.9LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
1988DodgeB1503.9LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
1988DodgeB2503.9LV6GASUpstreamInstall 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.