HomeEmission Control > SensorsWalker 250-54070 Oxygen Sensor - Upstream Left or Upstream Right
Part #: 250-54070

Walker 250-54070 Oxygen Sensor - Upstream Left or Upstream Right

Walker Products OE, Upstream Left
4 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 OE, Upstream Left
Fitment: Suzuki, Grand Vitara
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Overview of Walker 250-54070 Oxygen Sensor for Suzuki Grand Vitara

The Walker 250-54070 oxygen sensor is designed specifically for Suzuki Grand Vitara models, 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 wires for accurate readings
  • Specific fitment for Suzuki Grand Vitara vehicles
  • 6.42-inch wiring harness length for flexible placement
  • 20 gauge wire measurement for durability and signal integrity
  • Threaded mounting with 18.0 mm thread diameter for secure fit
  • Radiused polygon male connector for reliable electrical connection
  • Overall length of 9.96 inches for proper sensor positioning

Detailed Product Description

This Walker Products OE oxygen sensor (part number 250-54070) is engineered to meet the exact specifications required by Suzuki Grand Vitara models. The heated sensor type allows for faster warm-up times, improving emission control efficiency shortly after engine start. With a 4-wire configuration and 20 gauge wiring, this sensor provides stable and accurate oxygen level readings to the vehicle’s engine control unit (ECU). The 6.42-inch wiring harness length offers sufficient reach for installation without excess slack, while the radiused polygon male connector ensures a secure and corrosion-resistant connection. The threaded mounting type with an 18.0 mm diameter allows for straightforward replacement and compatibility with factory mounting points.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed OEM standards. This oxygen sensor is part of that line, providing reliable performance and fitment for emission control systems. Using a Walker Products OE sensor helps maintain factory-level emissions compliance and engine efficiency for your Suzuki Grand Vitara.

Common Applications and Issues Addressed

  • Restores accurate air-fuel mixture readings for improved fuel economy
  • Resolves check engine light triggers related to oxygen sensor faults
  • Helps reduce harmful emissions by ensuring proper catalytic converter function
  • Eliminates rough idling or engine hesitation caused by faulty sensors
  • Prevents failed emissions tests due to sensor malfunction

Installation Notes and Tips

When installing the Walker 250-54070 oxygen sensor, ensure the engine 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. Properly torque the sensor to manufacturer specifications to prevent leaks or sensor damage. The 6.42-inch wiring harness length allows for flexible routing but avoid sharp bends or contact with hot exhaust components.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards for durability and performance. This part number 250-54070 undergoes rigorous testing to ensure reliable operation in emission control systems. Warranty coverage details should be confirmed with the product documentation or supplier, as it may vary by region.

BrandWalker
Part Number250-54070
PositionWalker Products OE, Upstream Left
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length9.96
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length6.42

This part fits 4 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2008SuzukiGrand Vitara2.7LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2008SuzukiGrand Vitara2.7LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2007SuzukiGrand Vitara2.7LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2007SuzukiGrand Vitara2.7LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE

* 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.