HomeEmission Control > SensorsWalker 350-34323 Oxygen Sensor - Downstream Left or Downstream Right
Part #: 350-34323

Walker 350-34323 Oxygen Sensor - Downstream Left or Downstream Right

Walker Products Aftermarket, Downstream Left
8 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products Aftermarket, Downstream Left
Fitment: Nissan, Sentra
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker Oxygen Sensor 350-34323 for Nissan Sentra

The Walker 350-34323 oxygen sensor is designed specifically for Nissan Sentra models, providing precise emission control and engine performance monitoring. This heated oxygen sensor features a threaded mounting type and a radiused polygon male connector for secure installation.

  • Wiring harness length: 28.27 inches
  • Wire gauge measurement: 20 gauge
  • Heated sensor type for faster response
  • Specific fit for Nissan Sentra
  • Four-wire configuration
  • Radiused polygon male connector
  • Thread diameter: 18.0 mm
  • Overall length: 31.81 inches
  • Threaded mounting type for reliable attachment

Detailed Product Description

The Walker Products Aftermarket oxygen sensor 350-34323 is engineered to meet the exact specifications required for Nissan Sentra vehicles. This heated oxygen sensor uses a four-wire design, which includes two wires for the heating element and two for the sensor signal, ensuring quicker sensor activation and accurate air-fuel mixture readings. The 20-gauge wiring and 28.27-inch harness length provide sufficient reach and durability for proper installation. The radiused polygon male connector ensures a secure and precise connection to the vehicle’s wiring harness, while the 18.0 mm threaded mounting allows for straightforward replacement without modifications.

Walker Products Aftermarket is a dedicated product line focused on delivering reliable emission control components that meet or exceed OEM standards. This oxygen sensor is part of that line, offering Nissan Sentra owners a sensor designed for specific fitment and performance consistency.

Common Applications and Issues Addressed

  • Restores accurate oxygen sensing for optimal engine performance
  • Helps reduce vehicle emissions by providing precise air-fuel ratio data
  • Resolves check engine light triggers related to oxygen sensor faults
  • Improves fuel efficiency by ensuring proper combustion
  • Prevents rough idling and engine hesitation caused by faulty sensors

Installation Notes and Tips

  • Ensure the vehicle is cool before sensor removal to avoid burns
  • Use appropriate oxygen sensor socket for threaded mounting
  • Verify connector type matches the vehicle harness (radiused polygon male)
  • Do not over-tighten the sensor; follow torque specifications
  • Inspect wiring harness for damage before installation

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards, ensuring durability and reliable performance. The 350-34323 part number undergoes rigorous testing to comply with emission control requirements. Warranty coverage details should be confirmed with the product documentation or supplier.

BrandWalker
Part Number350-34323
PositionWalker Products Aftermarket, Downstream Left
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length31.81
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length28.27

This part fits 8 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2001NissanSentraXE1.8LL4GASDownstream LeftExc. CA Series, w/o Mid Year Emissions; Downstream; Left; Walker Products Aftermarket
2001NissanSentraGXE1.8LL4GASDownstream LeftExc. CA Series, w/o Mid Year Emissions; Downstream; Left; Walker Products Aftermarket
2001NissanSentraXE1.8LL4GASDownstream LeftDownstream Oxygen Sensor for models excluding CA Series with no Mid Year Emissions, positioned on the left side.; Walker Products Aftermarket
2001NissanSentraGXE1.8LL4GASDownstream LeftDownstream Oxygen Sensor for models excluding CA Series with no Mid Year Emissions, positioned on the left side.; Walker Products Aftermarket
2000NissanSentra1.8LL4GASDownstream RightDownstream Right Oxygen Sensor, non-CA series; Walker Products Aftermarket
2000NissanSentra1.8LL4GASDownstream LeftNon CA series; No serie de California; Downstream; Left; Walker Products Aftermarket
2000NissanSentra1.8LL4GASDownstream RightNon California emissions; downstream position on the right side; Walker Products Aftermarket
2000NissanSentra1.8LL4GASDownstream LeftNon CA SERIES Downstream Left Oxygen Sensor; 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.