HomeEmission Control > SensorsWalker 250-54063 Oxygen Sensor - Upstream
Part #: 250-54063

Walker 250-54063 Oxygen Sensor - Upstream

Walker Products OE, Upstream
⚙️ 26 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 OE, Upstream
🚗Fitment: Mazda, MX-5 and MX-5 Miata
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 250-54063 Oxygen Sensor for Mazda MX-5

The Walker 250-54063 oxygen sensor is designed specifically for Mazda MX-5 and MX-5 Miata models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

  • Heated oxygen sensor with 4 wires for precise readings
  • Specific fit for Mazda MX-5 and MX-5 Miata
  • 6.42-inch wiring harness length for convenient installation
  • Threaded mounting type with 18.0 mm thread diameter
  • Radiused polygon female connector for secure connection
  • Overall length of 9.96 inches for proper fitment
  • Wire gauge measurement of 20 for durability and signal integrity

Walker Products OE Brand Line Details

This oxygen sensor is part of the Walker Products OE line, which focuses on delivering original equipment quality parts. The Walker Products OE line provides components engineered to meet or exceed factory specifications, ensuring compatibility and reliable performance for specific vehicle applications like the Mazda MX-5.

Product Features and Technical Specifications

The Walker 250-54063 oxygen sensor features a heated sensor type that allows for faster warm-up times and improved emissions control. It includes four wires with a 20-gauge measurement, supporting accurate signal transmission. The sensor’s wiring harness length of 6.42 inches and overall length of 9.96 inches are designed to fit precisely in the exhaust system of Mazda MX-5 and MX-5 Miata vehicles. The radiused polygon female connector ensures a secure and stable electrical connection, while the threaded mounting type with an 18.0 mm diameter allows for straightforward installation.

Common Applications and Issues Addressed

  • Helps maintain proper air-fuel mixture for efficient combustion
  • Reduces harmful emissions by providing accurate oxygen level data
  • Prevents engine performance issues related to faulty oxygen sensors
  • Addresses check engine light triggers caused by sensor failure
  • Supports smooth engine idling and acceleration in Mazda MX-5 models

Installation Notes and Tips

When installing the Walker 250-54063 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct tools to remove the old sensor and avoid damaging the wiring harness. The 18.0 mm threaded mounting allows for a secure fit; apply anti-seize compound on the threads if recommended by the vehicle manufacturer. Confirm the radiused polygon female connector is fully seated to prevent electrical issues. This sensor is designed for specific fitment on Mazda MX-5 and MX-5 Miata models, so verify compatibility before installation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards, ensuring reliable performance and durability. While specific warranty details for part number 250-54063 may vary, Walker typically offers coverage against defects in materials and workmanship. Refer to the product documentation or manufacturer for exact warranty terms.

BrandWalker
Part Number250-54063
PositionWalker Products OE, Upstream
Connector GenderFemale
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 26 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2015MazdaMX-52.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2015MazdaMX-52.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2014MazdaMX-52.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2014MazdaMX-52.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2013MazdaMX-52.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2013MazdaMX-52.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2012MazdaMX-52.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2012MazdaMX-52.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2011MazdaMX-52.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2011MazdaMX-52.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2010MazdaMX-52.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2010MazdaMX-52.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2009MazdaMX-52.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2009MazdaMX-52.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2008MazdaMX-52.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2008MazdaMX-52.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2008MazdaMX-5 Miata2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2008MazdaMX-5 Miata2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2007MazdaMX-52.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2007MazdaMX-52.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2007MazdaMX-5 Miata2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2007MazdaMX-5 Miata2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2006MazdaMX-52.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2006MazdaMX-52.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2006MazdaMX-5 Miata2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2006MazdaMX-5 Miata2.0LL4GASUpstreamFront oxygen sensor compatible with various 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.