HomeEmission Control > SensorsWalker 350-34456 Oxygen Sensor - Downstream Left or Downstream Right
Part #: 350-34456

Walker 350-34456 Oxygen Sensor - Downstream Left or Downstream Right

Walker Products Aftermarket, Downstream Left
⚙️ 4 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 Left
🚗Fitment: Cadillac, Catera
🔄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 Cadillac Catera

The Walker 350-34456 oxygen sensor is designed specifically for the Cadillac Catera, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a radiused polygon male connector for secure installation.

  • Heated oxygen sensor with 4-wire configuration
  • Specific fit for Cadillac Catera models
  • 21.18-inch wiring harness length for flexible routing
  • Threaded mounting with 18.0 mm thread diameter
  • Radiused polygon male connector for reliable connection
  • Wire gauge measurement of 20 for durability and signal integrity
  • Overall length of 24.72 inches for proper fitment

Detailed Product Description

This Walker oxygen sensor (part number 350-34456) is engineered to meet the emission control requirements of the Cadillac Catera. Featuring a heated sensor type, it quickly reaches operating temperature to provide accurate oxygen level readings to the engine control unit. The 4-wire design supports both the sensor signal and heater circuit, improving responsiveness and reducing emissions. The sensor’s 18.0 mm threaded mounting ensures a secure fit in the exhaust system, while the radiused polygon male connector facilitates a stable electrical connection. With a wiring harness length of 21.18 inches and an overall length of 24.72 inches, this sensor is designed for precise fitment and ease of installation.

Walker Products Aftermarket offers a comprehensive line of emission control components, including oxygen sensors tailored for specific vehicle applications. This product line focuses on delivering reliable, vehicle-specific parts that meet or exceed OEM specifications, supporting proper engine management and emissions compliance.

Common Applications and Issues Addressed

  • Restores accurate air-fuel mixture readings for Cadillac Catera
  • Helps resolve engine performance issues related to faulty oxygen sensors
  • Reduces emissions by providing precise feedback to the engine control unit
  • Prevents check engine light triggers caused by sensor failure
  • Improves fuel efficiency by maintaining proper combustion control

Installation Notes and Tips

  • Ensure the vehicle is cool before sensor removal to avoid burns
  • Use appropriate oxygen sensor socket for threaded installation
  • Verify connector type matches the vehicle harness (radiused polygon male)
  • Do not over-tighten the sensor; follow torque specifications
  • Inspect wiring harness for damage before installation

Quality Assurance and Warranty

Walker oxygen sensors are manufactured to meet strict quality standards for durability and performance. This part number 350-34456 undergoes rigorous testing to ensure compatibility with Cadillac Catera models and reliable operation under normal driving conditions. While specific warranty details are not provided here, Walker Products Aftermarket parts typically come with a limited warranty against defects in materials and workmanship.

BrandWalker
Part Number350-34456
PositionWalker Products Aftermarket, Downstream Left
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length24.72
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length21.18

This part fits 4 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1998CadillacCatera3.0LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
1998CadillacCatera3.0LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
1997CadillacCatera3.0LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
1997CadillacCatera3.0LV6GASDownstream LeftDownstream left oxygen sensor required.; 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.