HomeEmission Control > SensorsWalker 350-34629 Oxygen Sensor - Upstream
Part #: 350-34629

Walker 350-34629 Oxygen Sensor - Upstream

Walker Products Aftermarket, Upstream
9 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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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, Upstream
Fitment: Toyota, 4Runner and Pickup
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 350-34629 Oxygen Sensor for Toyota 4Runner and Pickup

The Walker 350-34629 oxygen sensor is designed specifically for Toyota 4Runner and Pickup models, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a flange mount and a radiused polygon female connector for secure installation.

  • Heated oxygen sensor with flange mount design
  • Specific fit for Toyota 4Runner and Pickup vehicles
  • 29.06-inch wiring harness length with 4 wires
  • 20 gauge wire measurement for durability
  • Radiused polygon female connector for reliable connection
  • 18.0 mm thread diameter and 32.6-inch overall length

Detailed Product Description and Attributes

The Walker 350-34629 oxygen sensor is engineered to meet the exact specifications required by Toyota 4Runner and Pickup models. It features a heated sensor type that helps the sensor reach operating temperature quickly, improving fuel efficiency and reducing emissions. The sensor includes a 29.06-inch wiring harness with four 20-gauge wires, providing a robust electrical connection. Its radiused polygon female connector ensures a secure and precise fit, while the 18.0 mm thread diameter and flange mount type facilitate straightforward installation. The overall length of 32.6 inches allows for proper placement within the vehicle’s exhaust system.

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on delivering reliable emission control components designed to meet or exceed OEM standards. Walker Products Aftermarket parts are engineered for specific vehicle applications, ensuring compatibility and performance for Toyota 4Runner and Pickup owners.

Common Applications and Issues Addressed

  • Helps maintain proper air-fuel mixture for efficient combustion
  • Reduces harmful emissions by providing accurate oxygen level readings
  • Prevents engine performance issues related to faulty sensors
  • Resolves check engine light triggers caused by oxygen sensor faults
  • Improves fuel economy by ensuring optimal sensor operation

Installation Notes and Tips

  • Ensure compatibility with Toyota 4Runner and Pickup models before installation
  • Use appropriate tools to avoid damaging the 18.0 mm threaded sensor
  • Verify the radiused polygon female connector is securely attached
  • Inspect wiring harness length (29.06 inches) for proper routing and clearance
  • Follow vehicle manufacturer torque specifications for flange mount installation

Quality Assurance and Warranty

Walker oxygen sensors, including part number 350-34629, are manufactured to meet stringent quality standards. The Walker Products Aftermarket line is known for consistent performance and durability. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to ensure customer confidence in their emission control components.

BrandWalker
Part Number350-34629
PositionWalker Products Aftermarket, Upstream
Connector GenderFemale
Connector ShapeRadiused Polygon
Mounting TypeFlange Mount
Overall Length32.6
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length29.06

This part fits 9 vehicles. Search below:

YearMakeModelDrive TypeLitersCylindersFuel TypePositionNotes
1989Toyota4Runner3.0LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
1989Toyota4Runner2.4LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1989Toyota4Runner2.4LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1988Toyota4Runner3.0LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
1988Toyota4Runner2.4LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1988Toyota4Runner2.4LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1988ToyotaPickup3.0LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
1988ToyotaPickup4WD2.4LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1988ToyotaPickup4WD2.4LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; 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.