HomeEmission Control > SensorsWalker 250-54108 Oxygen Sensor - Upstream, Upstream Front or Upstream Rear
Part #: 250-54108

Walker 250-54108 Oxygen Sensor - Upstream, Upstream Front or Upstream Rear

Walker Products OE, Upstream Front
⚙️ 8 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 Front
🚗Fitment: Nissan, Altima, Sentra, and Versa
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Overview of Walker 250-54108 Oxygen Sensor for Nissan Vehicles

The Walker 250-54108 oxygen sensor is designed specifically for Nissan Altima, Sentra, and Versa 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
  • Specific fit for Nissan Altima, Sentra, and Versa
  • 13.31-inch wiring harness length with 4 wires
  • 20 gauge wire measurement for durability
  • Radiused polygon male connector for secure connection
  • Threaded mounting type with 18.0 mm thread diameter
  • Overall length of 16.85 inches for proper installation

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. Walker Products OE components are engineered to meet or exceed OEM specifications, ensuring reliable fitment and performance for emission control systems in Nissan vehicles.

Detailed Product Description

The Walker 250-54108 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. Its 4-wire design includes a dedicated heater circuit, enhancing sensor responsiveness. The 13.31-inch wiring harness length and radiused polygon male connector provide a secure and precise fit, minimizing installation issues. The threaded mounting type with an 18.0 mm diameter ensures compatibility with the exhaust system of Nissan Altima, Sentra, and Versa models. The 20 gauge wire measurement supports durability and resistance to heat and vibration.

Common Applications and Issues Addressed

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

Installation Notes and Tips

  • Ensure vehicle compatibility with Nissan Altima, Sentra, or Versa before installation
  • Use proper tools to avoid damaging the threaded mounting or connector
  • Check wiring harness length and connector shape for correct fit
  • Follow manufacturer torque specifications for sensor installation
  • Inspect surrounding exhaust components for leaks or damage during replacement

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 250-54108 may vary, Walker typically offers coverage against defects in materials and workmanship. Refer to the product documentation or supplier for exact warranty terms.

BrandWalker
Part Number250-54108
PositionWalker Products OE, Upstream Front
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length16.85
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length13.31

This part fits 8 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2007NissanAltima3.5LV6GASUpstream RearUpstream oxygen sensor for rear exhaust system.; Walker Products OE
2007NissanAltima3.5LV6GASUpstream FrontFront upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products OE
2007NissanSentra2.5LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2007NissanSentra2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2007NissanSentra2.5LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2007NissanSentra2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
2007NissanVersa1.8LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
2007NissanVersa1.8LL4GASUpstreamFront 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.