HomeEmission Control > SensorsWalker 250-241126 Oxygen Sensor - Downstream or Upstream
Part #: 250-241126

Walker 250-241126 Oxygen Sensor - Downstream or Upstream

Walker Products OE, Downstream
14 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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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products OE, Downstream
Fitment: Suzuki and Mazda, Forenza, Reno, Protege, and Protege5
Easy Returns — Return within 60 days for a full refund
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Overview of Walker Products OE Oxygen Sensor 250-241126

The Walker Products OE Oxygen Sensor 250-241126 is designed specifically for Mazda Forenza, Suzuki Protege, and Protege5 models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

  • Heated sensor type for faster response times
  • 7.4-inch wiring harness length with 20-gauge wire
  • Four-wire configuration with radiused polygon female connector
  • Threaded mounting type with 18.0 mm thread diameter
  • Overall length of 10.94 inches for precise fitment

Detailed Product Features and Specifications

This oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The 7.4-inch wiring harness length and 20-gauge wire gauge measurement provide reliable electrical connectivity. With four wires and a radiused polygon female connector, the sensor ensures secure and accurate signal transmission. The threaded mounting type with an 18.0 mm thread diameter guarantees a proper and secure installation in the exhaust system. The overall length of 10.94 inches is tailored for specific vehicle fitment, ensuring compatibility with Mazda Forenza and Suzuki Protege models.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed OEM specifications. This oxygen sensor from the Walker Products OE line is engineered to provide precise emissions control and durability, making it a reliable replacement part for Mazda and Suzuki vehicles requiring exact fit and function.

Common Applications and Issues Addressed

  • Helps resolve poor fuel economy caused by faulty oxygen sensors
  • Reduces engine performance issues related to incorrect air-fuel mixture
  • Assists in passing emissions tests by maintaining proper exhaust gas readings
  • Prevents check engine light triggers related to oxygen sensor faults
  • Supports smooth engine idling and acceleration

Installation Notes and Tips

Ensure the vehicle is cool before installation to avoid burns. Use the correct tools to remove the old sensor and install the new one with the 18.0 mm threaded mounting. Verify the connector matches the radiused polygon female type for proper connection. Avoid damaging the wiring harness during installation and confirm the sensor is securely threaded to prevent exhaust leaks.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards for durability and performance. While specific warranty details are not provided here, Walker typically offers coverage consistent with OEM replacement parts, ensuring reliability and peace of mind for Mazda Forenza and Suzuki Protege owners.

BrandWalker
Part Number250-241126
PositionWalker Products OE, Downstream
Connector GenderFemale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length10.94
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length7.4

This part fits 14 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2005SuzukiForenza2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2004SuzukiForenza2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2003MazdaProtege2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2003MazdaProtegeMazdaspeed2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2003MazdaProtege2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2003MazdaProtegeMazdaspeed2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2003MazdaProtege52.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2003MazdaProtege52.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2002MazdaProtege2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2002MazdaProtege2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2002MazdaProtege52.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2002MazdaProtege52.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2001MazdaProtege2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2001MazdaProtege2.0LL4GASUpstreamFront 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.