HomeEmission Control > SensorsWalker 250-24657 Oxygen Sensor - Downstream Left
Part #: 250-24657

Walker 250-24657 Oxygen Sensor - Downstream Left

Walker Products OE, Downstream Left
⚙️ 6 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Walker Products OE, Downstream Left
🚗Fitment: BMW, X5
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Overview of Walker 250-24657 Oxygen Sensor for BMW X5

The Walker Products OE 250-24657 oxygen sensor is designed specifically for BMW X5 models, providing precise emission control and engine performance monitoring. This heated oxygen sensor features a threaded mounting type and a radiused polygon female connector for secure installation.

  • Heated oxygen sensor with 4 wires for accurate signal transmission
  • Specific fit for BMW X5 ensuring compatibility and reliable operation
  • 42.44-inch wiring harness length for flexible routing
  • Thread diameter of 18.0 mm with threaded mounting for secure fit
  • Radiused polygon female connector designed for OEM-style connection
  • Wire gauge measurement of 20 for optimal electrical performance
  • Overall length of 45.98 inches for proper sensor placement

Walker Products OE Brand Line Details

The Walker Products OE line focuses on delivering emission control components that meet original equipment specifications. The 250-24657 oxygen sensor is engineered to match the exact fit and function required by BMW X5 vehicles, ensuring consistent sensor performance and durability. This product line emphasizes quality and precision to support emission standards compliance.

Product Description and Technical Specifications

This oxygen sensor is a heated type, which allows it to reach operating temperature quickly for accurate air-fuel mixture readings. It includes four wires with a 20-gauge measurement, providing reliable electrical connections. The sensor’s wiring harness length of 42.44 inches and overall length of 45.98 inches offer sufficient reach for installation in the BMW X5’s exhaust system. The radiused polygon female connector ensures a secure and OEM-compatible connection, while the 18.0 mm threaded mounting type allows for straightforward installation and replacement.

Common Applications and Issues Addressed

  • Helps maintain optimal engine air-fuel ratio for efficient combustion
  • Reduces harmful emissions by providing accurate feedback to the engine control unit
  • Resolves check engine light triggers related to oxygen sensor faults
  • Improves fuel economy by ensuring proper sensor operation
  • Prevents rough idling and engine performance issues caused by faulty sensors

Installation Notes and Tips

When installing the Walker 250-24657 oxygen sensor on a BMW X5, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. Confirm the connector matches the radiused polygon female design for a proper fit. Thread the sensor carefully into the exhaust port to the specified torque to prevent leaks or sensor damage.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards and original equipment specifications. While specific warranty details for part number 250-24657 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship to ensure reliable performance.

BrandWalker
Part Number250-24657
PositionWalker Products OE, Downstream Left
Connector GenderFemale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length45.98
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length42.44

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2006BMWX54.8LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2006BMWX54.4LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2005BMWX54.8LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2005BMWX54.4LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2004BMWX54.8LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2004BMWX54.4LV8GASDownstream LeftDownstream left oxygen sensor required.; 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.