HomeEmission Control > SensorsWalker 350-34554 Oxygen Sensor - Upstream
Part #: 350-34554

Walker 350-34554 Oxygen Sensor - Upstream

Walker Products Aftermarket, Upstream
⚙️ 6 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, Upstream
🚗Fitment: Toyota, Supra
🔄Easy Returns — Return within 60 days for a full refund
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Overview of Walker 350-34554 Oxygen Sensor for Toyota Supra

The Walker 350-34554 oxygen sensor is designed specifically for Toyota Supra models, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a flange mount and a radiused polygon male connector for secure installation.

  • Heated oxygen sensor with 4-wire configuration
  • Specific fit for Toyota Supra vehicles
  • 30.63-inch wiring harness length for flexible routing
  • 22-gauge wire for reliable signal transmission
  • Flange mount with 18.0 mm thread diameter
  • Radiused polygon male connector for secure connection
  • Overall length of 34.17 inches for proper placement

Detailed Product Description

This Walker Products Aftermarket oxygen sensor (part number 350-34554) is engineered to meet the exact specifications required by Toyota Supra models. The sensor type is heated, which allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The 4-wire design includes a dedicated heater circuit and signal wires, ensuring accurate oxygen level readings. The wiring harness length of 30.63 inches provides ample length for installation without excess slack, while the 22-gauge wire ensures durability and consistent electrical performance.

The sensor mounts via a flange mount with an 18.0 mm thread diameter, compatible with the factory mounting location on the Toyota Supra. The connector features a radiused polygon shape with a male gender, designed to fit securely with the vehicle’s wiring harness and prevent accidental disconnection.

Walker Products Aftermarket Brand Line

The Walker Products Aftermarket line focuses on delivering reliable emission control components that meet or exceed OEM standards. This oxygen sensor is part of that line, offering a direct replacement solution for Toyota Supra owners who require precise fitment and dependable sensor performance to maintain emission compliance and engine efficiency.

Common Applications and Issues Addressed

  • Restores accurate air-fuel mixture readings for optimal engine performance
  • Helps resolve rough idling and engine hesitation caused by faulty sensors
  • Reduces increased emissions and failed emissions tests
  • Prevents check engine light triggers related to oxygen sensor faults
  • Improves fuel economy by ensuring proper sensor feedback

Installation Notes and Tips

When installing the Walker 350-34554 oxygen sensor on a Toyota Supra, ensure the flange mount is securely tightened to the specified torque to prevent exhaust leaks. Verify the connector’s radiused polygon male end aligns correctly with the vehicle harness to avoid damage. It is recommended to inspect the wiring harness for any wear or damage before installation. Use anti-seize compound on the threads if specified by the vehicle manufacturer to facilitate future removal.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards, ensuring reliable operation and durability. This part number 350-34554 undergoes rigorous testing to comply with emission control requirements. Warranty coverage details should be confirmed with the product documentation or supplier, as it may vary by region.

BrandWalker
Part Number350-34554
PositionWalker Products Aftermarket, Upstream
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeFlange Mount
Overall Length34.17
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement22
Wire Quantity4
Wiring Harness Length30.63

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1998ToyotaSupra3.0LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
1997ToyotaSupra3.0LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
1996ToyotaSupra3.0LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
1995ToyotaSupra3.0LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
1994ToyotaSupra3.0LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
1993ToyotaSupra3.0LL6GASUpstreamInstall 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.