HomeEmission Control > SensorsWalker 350-34267 Oxygen Sensor - Downstream, Downstream Left or Downstream Right
Part #: 350-34267

Walker 350-34267 Oxygen Sensor - Downstream, Downstream Left or Downstream Right

Walker Products Aftermarket, Downstream Left
13 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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*Free return shipping only qualifies if our fitment verification tool is used.
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, Downstream Left
Fitment: Nissan, Frontier, Xterra, and Pickup
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 350-34267 Oxygen Sensor for Nissan Vehicles

The Walker 350-34267 oxygen sensor is designed specifically for Nissan Frontier, Pickup, and Xterra 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 Frontier, Pickup, and Xterra
  • 43.43-inch wiring harness length with 4 wires
  • 20 gauge wire for reliable signal transmission
  • Threaded mounting with 18.0 mm thread diameter
  • Radiused polygon male connector for secure connection
  • Overall length of 46.97 inches for proper installation

Detailed Product Description

This Walker Products Aftermarket oxygen sensor (part number 350-34267) is engineered to meet the exact specifications of Nissan Frontier, Pickup, and Xterra vehicles. Featuring a heated sensor element, it provides quicker warm-up times compared to unheated sensors, improving fuel efficiency and reducing emissions sooner after engine start. The sensor includes a 43.43-inch wiring harness with four 20-gauge wires, ensuring consistent electrical performance and compatibility with the vehicle’s existing wiring system. The radiused polygon male connector and threaded mounting type with an 18.0 mm thread diameter allow for a secure and precise fit, minimizing installation issues.

Walker Products Aftermarket Line

The Walker Products Aftermarket line focuses on delivering emission control components that meet or exceed OEM standards. This oxygen sensor is part of that line, providing a reliable replacement option tailored for specific vehicle applications. The attention to fitment and sensor design helps maintain proper engine management and emissions compliance for Nissan vehicles.

Common Applications and Issues Addressed

  • Restores accurate oxygen sensing for proper air-fuel mixture
  • Helps resolve rough idling and engine hesitation
  • Reduces increased emissions and failed emissions tests
  • Prevents check engine light triggers related to oxygen sensor faults
  • Improves fuel economy by ensuring correct sensor feedback

Installation Notes and Tips

When installing the Walker 350-34267 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct socket size for the 18.0 mm threaded sensor to prevent damage. Verify the radiused polygon male connector matches the vehicle harness connector for a secure fit. Follow torque specifications recommended by Nissan to avoid sensor or exhaust manifold damage. It is advisable to inspect wiring for any damage before installation.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards. While specific warranty details for part number 350-34267 should be confirmed at the point of purchase, Walker typically offers coverage against defects in materials and workmanship. This ensures dependable performance and durability for Nissan Frontier, Pickup, and Xterra vehicles.

BrandWalker
Part Number350-34267
PositionWalker Products Aftermarket, Downstream Left
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length46.97
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length43.43

This part fits 13 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersFuel TypePositionNotes
2003NissanFrontier3.3LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2003NissanXterra3.3LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2002NissanXterra3.3LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2001NissanXterra3.3LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2000NissanFrontierManual3.3LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products Aftermarket
2000NissanFrontierManual3.3LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2000NissanFrontierAutomatic3.3LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
2000NissanXterra3.3LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
1999NissanFrontier3.3LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products Aftermarket
1997NissanPickup2.4LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
1996NissanPickup2.4LL4GASDownstreamFrom 1/96; B1S2; Del 1/96; Downstream; Walker Products Aftermarket
1996NissanPickup2.4LL4GASDownstreamFrom 1/96; Del 1/96; Downstream; B1S2; Walker Products Aftermarket
1996NissanPickup2.4LL4GASDownstreamFrom 1/96; B1S2; 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.