HomeEmission Control > SensorsWalker 350-34382 Oxygen Sensor - Center or Downstream
Part #: 350-34382

Walker 350-34382 Oxygen Sensor - Center or Downstream

Walker Products Aftermarket, Center
10 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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In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products Aftermarket, Center
Fitment: Nissan and INFINITI, Sentra, G20, Altima, and Lucino
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 350-34382 Oxygen Sensor

The Walker 350-34382 oxygen sensor is designed specifically for select Nissan and INFINITI models, including the Altima, G20, and Sentra. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data.

  • Heated sensor type for faster response times
  • Specific fit for Nissan Altima, G20, and Sentra models
  • 11.73-inch wiring harness length with 4 wires
  • 20 gauge wire for reliable signal transmission
  • Radiused polygon male connector for secure connection
  • Threaded mounting type with 18.0 mm thread diameter
  • Overall length of 15.28 inches for proper installation

Walker Products Aftermarket Line Details

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing replacement emission control components engineered to meet or exceed OEM specifications. The line emphasizes precise fitment and durability, making the 350-34382 sensor a reliable choice for maintaining factory-level emissions performance on compatible Nissan and INFINITI vehicles.

Technical Description and Attributes

The Walker 350-34382 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The sensor includes a wiring harness measuring 11.73 inches in length with four 20-gauge wires, ensuring stable electrical signals. Its radiused polygon male connector provides a secure and corrosion-resistant connection, while the threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the exhaust system. The overall length of 15.28 inches accommodates proper positioning within the vehicle’s emission control system.

Common Applications and Problem Resolution

  • Restores accurate air-fuel ratio readings for Nissan Altima, G20, and Sentra
  • Helps resolve engine performance issues related to faulty oxygen sensors
  • Reduces emissions by ensuring proper sensor operation
  • Prevents check engine light triggers caused by sensor failure
  • Improves fuel economy by providing precise feedback to the engine control unit

Installation Notes and Tips

When installing the Walker 350-34382 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector type matches the vehicle harness before installation. Properly torque the sensor to manufacturer specifications to prevent exhaust leaks. Inspect wiring for damage and secure the harness to prevent strain or disconnection.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards, ensuring reliable performance and durability. The 350-34382 sensor undergoes rigorous testing to comply with emission control requirements. Warranty coverage details should be confirmed with the product documentation or supplier, as they may vary.

BrandWalker
Part Number350-34382
PositionWalker Products Aftermarket, Center
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length15.28
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length11.73

This part fits 10 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2002NissanSentraCA1.8LL4GASCenterCalif-ESV, Center Oxygen Sensor; Walker Products Aftermarket
2001INFINITIG202.0LL4GASDownstreamTo 01/01; B1S2; Al 01/01; Downstream; Walker Products Aftermarket
2001INFINITIG202.0LL4GASDownstreamTo 01/01; Al 01/01; Downstream; B1S2; Walker Products Aftermarket
2001INFINITIG202.0LL4GASDownstream01/01 B1S2 Downstream Oxygen Sensor; Walker Products Aftermarket
2001NissanSentraCA1.8LL4GASDownstreamCA Series; Serie CA; Downstream; Walker Products Aftermarket
2001NissanSentraCA1.8LL4GASDownstreamCA Series; Downstream; Walker Products Aftermarket
2000INFINITIG202.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2000NissanAltima2.4LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2000NissanSentra1.8LL4GASDownstreamCA Series; Serie CA; Downstream; Walker Products Aftermarket
2000NissanSentra1.8LL4GASDownstreamCA Series; Downstream; Walker Products Aftermarket

* 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.