HomeEmission Control > SensorsWalker 250-25069 Oxygen Sensor - Upstream or Upstream Front
Part #: 250-25069

Walker 250-25069 Oxygen Sensor - Upstream or Upstream Front

Walker Products OE, Upstream
20 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products OE, Upstream
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 Products OE Oxygen Sensor 250-25069

The Walker Products OE Oxygen Sensor 250-25069 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 connector, ensuring a secure and accurate fit for your vehicle.

  • Heated oxygen sensor for improved response time
  • Specific fit for Mazda 6 vehicles
  • Threaded mounting with 18.0 mm thread diameter
  • 23.15 inches wiring harness length with 5 wires
  • Radiused polygon connector with male and female ends
  • 20 gauge wire for reliable signal transmission
  • Overall length of 26.69 inches for proper installation

Detailed Product Description

This Walker Products OE oxygen sensor (part number 250-25069) is engineered to meet the exact specifications required by Mazda 6 models. The sensor is heated, which helps it reach operating temperature faster, improving fuel efficiency and reducing emissions. It features a 23.15-inch wiring harness with five 20-gauge wires, providing robust electrical connectivity. The radiused polygon connector design includes both male and female ends, ensuring a secure and precise connection. The sensor mounts via a threaded fitting with an 18.0 mm diameter, and the overall length of 26.69 inches allows for proper placement within the exhaust system.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory standards. This oxygen sensor is part of that line, ensuring compatibility and reliability for Mazda 6 owners who require a sensor that matches OEM specifications for emission control systems.

Common Applications and Issues Addressed

  • Helps maintain optimal air-fuel mixture for efficient combustion
  • Reduces engine misfires caused by faulty oxygen sensors
  • Prevents increased emissions and failed emissions tests
  • Improves fuel economy by providing accurate sensor data
  • Resolves check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Walker Products OE oxygen sensor 250-25069 on a Mazda 6, ensure the threaded mounting is properly tightened to the manufacturer’s torque specifications. Verify the wiring harness length and connector type match the vehicle’s harness to avoid connection issues. It is recommended to use anti-seize compound on the threads to facilitate future removal. Always disconnect the battery before installation to prevent electrical shorts.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards, ensuring durability and reliable performance. While specific warranty details for part number 250-25069 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship to support long-term use in Mazda 6 vehicles.

BrandWalker
Part Number250-25069
PositionWalker Products OE, Upstream
Connector GenderFemale
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length26.69
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity5
Wiring Harness Length23.15

This part fits 20 vehicles. Search below:

YearMakeModelSubmodelTransmissionLitersCylindersFuel TypePositionNotes
2008Mazda6Manual2.3LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2008Mazda6Automatic2.3LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products OE
2008Mazda6Manual2.3LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2008Mazda6Automatic2.3LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products OE
2008Mazda6Automatic2.3LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products OE
2007Mazda6Manual2.3LL4GASUpstream FrontB1S1; Upstream; Front; Walker Products OE
2007Mazda6Manual2.3LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2007Mazda6Automatic2.3LL4GASUpstream FrontNon Calif-ESV; B1S1; No Calif-ESV; Upstream; Front; Walker Products OE
2007Mazda6Automatic2.3LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products OE
2007Mazda6Manual2.3LL4GASUpstream FrontUpstream Front Oxygen Sensor for Bank 1 Sensor 1; Walker Products OE
2007Mazda6Manual2.3LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2007Mazda6Automatic2.3LL4GASUpstream FrontNon Calif-ESV; No Calif-ESV; Upstream; Front; B1S1; Walker Products OE
2007Mazda6Automatic2.3LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products OE
2007Mazda6Automatic2.3LL4GASUpstream FrontNon Calif-ESV; B1S1; Upstream; Front; Walker Products OE
2007Mazda6Automatic2.3LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products OE
2006Mazda6iManual2.3LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2006Mazda6iAutomatic2.3LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products OE
2006Mazda6iManual2.3LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2006Mazda6iAutomatic2.3LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products OE
2006Mazda6iAutomatic2.3LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; 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.