HomeEmission Control > SensorsWalker 350-34319 Oxygen Sensor - Downstream Left or Downstream Right
Part #: 350-34319

Walker 350-34319 Oxygen Sensor - Downstream Left or Downstream Right

Walker Products Aftermarket, Downstream Right
14 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$62.38Free 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, Downstream Right
Fitment: Land Rover, LR4, Range Rover Sport, and Range Rover
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 350-34319 Oxygen Sensor for Land Rover

The Walker 350-34319 oxygen sensor is designed specifically for Land Rover models including the LR4, Range Rover, and Range Rover Sport. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases precisely.

  • Heated sensor type for faster response times
  • Specific fit for Land Rover LR4, Range Rover, and Range Rover Sport
  • Threaded mounting type with 18.0 mm thread diameter
  • 38.9-inch wiring harness length with 4 wires of 20 gauge
  • Radiused polygon male connector for secure connection
  • Overall length of 42.44 inches for proper installation

Walker Products Aftermarket Line Details

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing reliable emission control components tailored to specific vehicle applications. The line emphasizes precise fitment and quality construction, ensuring compatibility and durability for emission sensors like the 350-34319.

Product Description and Specifications

The Walker 350-34319 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. It includes a 38.9-inch wiring harness with four 20-gauge wires, designed to interface with the vehicle’s engine control unit accurately. The sensor mounts via a threaded connection with an 18.0 mm diameter, ensuring a secure and leak-free fit. The radiused polygon male connector provides a reliable electrical connection, minimizing the risk of disconnection or corrosion. This sensor is engineered specifically for Land Rover LR4, Range Rover, and Range Rover Sport models, ensuring compatibility and performance.

Common Applications and Issues Addressed

  • Helps maintain proper air-fuel mixture for efficient combustion
  • Reduces harmful emissions by providing accurate exhaust gas readings
  • Prevents engine performance issues related to faulty oxygen sensors
  • Resolves check engine light triggers related to oxygen sensor faults
  • Improves fuel economy by enabling precise engine adjustments

Installation Notes and Tips

When installing the Walker 350-34319 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct tools to remove the old sensor and avoid damaging the wiring harness. Verify the connector shape and gender match the vehicle’s harness for a secure fit. Thread the sensor carefully to avoid cross-threading and tighten to manufacturer torque specifications. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper operation.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors undergo rigorous testing to meet OEM standards for fit, form, and function. The 350-34319 part number is manufactured to provide consistent performance and durability. While specific warranty details are not provided here, Walker typically offers coverage against defects in materials and workmanship, supporting long-term reliability for Land Rover LR4, Range Rover, and Range Rover Sport applications.

BrandWalker
Part Number350-34319
PositionWalker Products Aftermarket, Downstream Right
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length42.44
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length38.9

This part fits 14 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2013Land RoverLR45.0LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2013Land RoverRange Rover Sport5.0LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2012Land RoverLR45.0LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2012Land RoverRange Rover5.0LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2012Land RoverRange Rover5.0LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2012Land RoverRange Rover Sport5.0LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2011Land RoverLR45.0LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2011Land RoverRange Rover5.0LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2011Land RoverRange Rover5.0LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2011Land RoverRange Rover Sport5.0LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2010Land RoverLR45.0LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2010Land RoverRange Rover5.0LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2010Land RoverRange Rover5.0LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2010Land RoverRange Rover Sport5.0LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; 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.