HomeEmission Control > SensorsWalker 350-34375 Oxygen Sensor - Downstream Rear or Upstream Left
Part #: 350-34375

Walker 350-34375 Oxygen Sensor - Downstream Rear or Upstream Left

Walker Products Aftermarket, Downstream Rear
⚙️ 19 vehicles fit this part
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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 and Hyundai, Cadenza, Azera, Genesis Coupe, and Sedona
🔄Easy Returns — Return within 60 days for a full refund
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Overview of Walker 350-34375 Oxygen Sensor

The Walker 350-34375 oxygen sensor is designed specifically for select Hyundai and Kia models, including the Azera, Cadenza, Genesis Coupe, and Sedona. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

  • Heated oxygen sensor with 4-wire design for precise readings
  • Specific fit for Hyundai and Kia vehicles: Azera, Cadenza, Genesis Coupe, Sedona
  • 28.07-inch wiring harness length for flexible installation
  • Threaded mounting type with 18.0 mm thread diameter
  • Radiused polygon male connector for secure electrical connection
  • Wire gauge measurement of 20 for durability and signal integrity
  • Overall length of 31.61 inches to accommodate vehicle-specific routing

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 performance for Hyundai and Kia models requiring exact sensor specifications.

Product Features and Specifications

The Walker 350-34375 oxygen sensor features a heated sensor type that allows for faster warm-up times and improved sensor response. Its 4-wire configuration supports both the sensor signal and heater circuit, enhancing accuracy and durability. The wiring harness length of 28.07 inches and overall length of 31.61 inches provide sufficient reach for proper installation without modification. The sensor mounts via a threaded connection with an 18.0 mm diameter, ensuring a secure fit in the exhaust system. The radiused polygon male connector is designed for a precise and reliable electrical connection, reducing the risk of signal loss or disconnection. The 20-gauge wire measurement balances flexibility and strength for long-term use.

Applications and Common Issues Addressed

  • Restores accurate oxygen sensing for improved fuel efficiency
  • Helps resolve check engine light codes related to oxygen sensor failure
  • Reduces emissions by providing correct air-fuel mixture data
  • Improves engine performance and drivability in Hyundai Azera, Kia Cadenza, Genesis Coupe, and Sedona
  • Prevents rough idling and poor acceleration caused by faulty sensors

Installation Notes and Tips

When installing the Walker 350-34375 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector type matches the vehicle harness before installation. Route the wiring harness carefully to prevent contact with hot exhaust components or moving parts. Tighten the sensor to manufacturer torque specifications to ensure a proper seal and sensor function.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors undergo rigorous testing to meet OEM standards for fit, form, and function. The 350-34375 part number is manufactured to provide consistent performance and durability in emission control applications. While specific warranty details are not provided here, Walker typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandWalker
Part Number350-34375
PositionWalker Products Aftermarket, Downstream Rear
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length31.61
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length28.07

This part fits 19 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2018KiaSedona3.3LV6Downstream RearOE Replacement
2017HyundaiAzera3.3LV6Downstream RearOE Replacement
2017KiaSedona3.3LV6Downstream RearOE Replacement
2016HyundaiAzera3.3LV6Downstream RearOE Replacement
2016KiaCadenzaPremium3.3LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket
2016KiaCadenzaLimited3.3LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket
2016KiaCadenzaBase3.3LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket
2016KiaSedona3.3LV6Downstream RearOE Replacement
2015HyundaiAzera3.3LV6Downstream RearOE Replacement
2015KiaCadenzaPremium3.3LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket
2015KiaCadenzaLimited3.3LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket
2015KiaSedona3.3LV6Downstream RearOE Replacement
2014HyundaiAzera3.3LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket
2014HyundaiGenesis Coupe3.8LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products Aftermarket
2014KiaCadenza3.3LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket
2014KiaSedona3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket
2013HyundaiAzera3.3LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket
2013HyundaiGenesis Coupe3.8LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products Aftermarket
2012HyundaiAzera3.3LV6GASDownstream 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.