HomeEmission Control > SensorsWalker 250-24791 Oxygen Sensor - Downstream
Part #: 250-24791

Walker 250-24791 Oxygen Sensor - Downstream

Walker Products OE, Downstream
2 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, Downstream
Fitment: Mazda, 6
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 250-24791 Oxygen Sensor for Mazda 6

The Walker Products OE 250-24791 oxygen sensor is designed specifically for Mazda 6 models, providing precise emission control and engine performance monitoring. This heated oxygen sensor features a threaded mounting type and a radiused polygon male connector for secure installation.

  • Wiring harness length: 24.13 inches
  • Wire gauge measurement: 20 gauge
  • Heated sensor type for faster response
  • Specific fit for Mazda 6
  • Four-wire configuration
  • Radiused polygon male connector
  • Thread diameter: 18.0 mm
  • Overall length: 27.68 inches
  • Threaded mounting type

Detailed Product Description

The Walker Products OE 250-24791 oxygen sensor is engineered to meet the exact specifications of Mazda 6 vehicles, ensuring compatibility and reliable performance. This heated oxygen sensor uses a four-wire design with a 20-gauge wire gauge measurement, which supports quicker sensor warm-up times and accurate exhaust gas readings. The sensor’s wiring harness length of 24.13 inches and overall length of 27.68 inches provide ample reach for proper installation. Featuring a radiused polygon male connector and an 18.0 mm thread diameter, this sensor mounts securely with a threaded mounting type, maintaining a stable connection within the exhaust system.

Walker Products OE Brand Line Information

Walker Products OE is a product line focused on delivering original equipment quality emission control components. This oxygen sensor is part of that line, designed to meet or exceed OEM standards for fit, form, and function. The 250-24791 sensor reflects Walker’s commitment to precision manufacturing and durability, making it a suitable replacement part for Mazda 6 vehicles requiring specific fitment and reliable emission monitoring.

Common Applications and Issues Addressed

  • Restores accurate oxygen level readings for optimal fuel mixture
  • Helps resolve engine performance issues related to faulty sensors
  • Reduces emissions by ensuring proper catalytic converter function
  • Eliminates check engine light triggers caused by sensor failure
  • Improves fuel efficiency by providing precise exhaust data

Installation Notes and Tips

When installing the Walker 250-24791 oxygen sensor on a Mazda 6, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. The threaded mounting type requires careful tightening to the manufacturer’s torque specifications to prevent leaks or sensor damage. Verify the radiused polygon male connector is securely connected to the vehicle’s wiring harness for proper sensor operation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring durability and reliable performance. While specific warranty details for part number 250-24791 may vary, Walker typically offers coverage against defects in materials and workmanship. Refer to product documentation or manufacturer resources for exact warranty terms.

BrandWalker
Part Number250-24791
PositionWalker Products OE, Downstream
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length27.68
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length24.13

This part fits 2 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2007Mazda62.3LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2006Mazda6Mazdaspeed2.3LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; 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.