HomeEmission Control > SensorsWalker 350-34545 Oxygen Sensor - Downstream Rear
Part #: 350-34545

Walker 350-34545 Oxygen Sensor - Downstream Rear

Walker Products Aftermarket, Downstream Rear
5 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products Aftermarket, Downstream Rear
Fitment: Kia, Sorento
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker Oxygen Sensor for Kia Sorento

The Walker 350-34545 oxygen sensor is designed specifically for Kia Sorento models, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a radiused polygon female connector for secure installation.

  • Wiring harness length: 31.02 inches
  • Wire gauge measurement: 22 gauge
  • Heated sensor type for faster response
  • Specific fit for Kia Sorento
  • Four-wire configuration
  • Radiused polygon female connector
  • Thread diameter: 18.0 mm
  • Overall length: 34.57 inches
  • Threaded mounting type

Detailed Product Description

This Walker oxygen sensor, part number 350-34545, is engineered to meet the exact specifications required for Kia Sorento vehicles. The heated sensor design allows for quicker activation and more accurate readings of the exhaust gases, which helps maintain efficient fuel combustion and reduces harmful emissions. The four-wire setup includes both the sensor signal and heater circuit, ensuring reliable operation under various driving conditions. The 18.0 mm threaded mounting and radiused polygon female connector provide a secure and precise fit, minimizing installation issues and potential sensor damage.

Walker Products Aftermarket offers a comprehensive line of emission control components designed to meet or exceed OEM standards. This product line focuses on delivering reliable, vehicle-specific sensors that support emission compliance and engine management systems. The 350-34545 oxygen sensor is part of this line, providing a direct replacement solution for Kia Sorento owners seeking quality and compatibility.

Common Applications and Issues Addressed

  • Restores accurate oxygen level readings for proper air-fuel mixture
  • Helps resolve engine performance problems such as rough idling or hesitation
  • Reduces emissions by ensuring catalytic converter efficiency
  • Prevents check engine light triggers related to oxygen sensor faults
  • Supports fuel economy by maintaining optimal combustion

Installation Notes and Tips

  • Ensure vehicle compatibility with Kia Sorento models before installation
  • Use proper tools to avoid damaging the 18.0 mm threaded sensor mount
  • Verify connector type matches the radiused polygon female connector on the vehicle harness
  • Handle the sensor carefully to avoid contamination of the sensing element
  • Follow torque specifications recommended by the vehicle manufacturer

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards, ensuring durability and reliable performance. While specific warranty details for part number 350-34545 should be confirmed at the point of purchase, Walker typically offers coverage against defects in materials and workmanship. This oxygen sensor is designed to provide consistent operation throughout its service life when installed and maintained properly.

BrandWalker
Part Number350-34545
PositionWalker Products Aftermarket, Downstream Rear
Connector GenderFemale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length34.57
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement22
Wire Quantity4
Wiring Harness Length31.02

This part fits 5 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2009KiaSorento3.8LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket
2009KiaSorento3.3LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket
2008KiaSorento3.8LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket
2008KiaSorento3.3LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket
2007KiaSorento3.8LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; 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.