HomeEmission Control > SensorsWalker 350-34355 Oxygen Sensor - Downstream
Part #: 350-34355

Walker 350-34355 Oxygen Sensor - Downstream

Walker Products Aftermarket, Downstream
13 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$66.94Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*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
Fitment: Nissan, Pickup, Frontier, and Xterra
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 350-34355 Oxygen Sensor for Nissan Vehicles

The Walker 350-34355 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 oxygen sensor with 4-wire design for precise readings
  • Specific fit for Nissan Frontier, Pickup, and Xterra
  • Threaded mounting type with 18.0 mm thread diameter
  • 47.36 inches wiring harness length with radiused polygon female connector
  • Wire gauge measurement of 20 for reliable electrical conductivity
  • Overall length of 50.91 inches for proper installation depth

Detailed Features and Specifications

This Walker oxygen sensor (part number 350-34355) features a heated sensor type that allows for faster warm-up times and improved fuel efficiency. The 4-wire configuration supports both the sensor signal and heater circuit, ensuring consistent operation under various driving conditions. The wiring harness length of 47.36 inches provides sufficient reach for installation in the exhaust system of Nissan Frontier, Pickup, and Xterra models. The connector is a radiused polygon female type, designed to match factory wiring harnesses for a secure and reliable connection. The sensor mounts via a threaded fitting with an 18.0 mm diameter, compatible with the original equipment specifications.

Walker Products Aftermarket Line Information

Walker Products Aftermarket offers a range of emission control components engineered to meet or exceed OEM standards. This oxygen sensor is part of their aftermarket line, providing a direct replacement solution tailored for specific vehicle applications. The focus on precise fitment and quality materials ensures compatibility and durability for Nissan vehicles requiring emission sensor replacements.

Common Applications and Problem Resolution

  • Restores accurate oxygen sensing for proper air-fuel mixture control
  • Resolves check engine light issues related to oxygen sensor faults
  • Improves fuel economy by providing correct exhaust gas readings
  • Reduces harmful emissions by maintaining optimal combustion
  • Prevents engine performance problems caused by faulty sensors

Installation Notes and Tips

When installing the Walker 350-34355 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness or connector. Verify the connector shape and gender match the factory harness before installation. Thread the sensor carefully to prevent cross-threading and torque to manufacturer specifications. Testing the sensor after installation can confirm proper operation.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards. While specific warranty details for part number 350-34355 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship. This ensures reliable performance and peace of mind when replacing oxygen sensors on Nissan Frontier, Pickup, and Xterra vehicles.

BrandWalker
Part Number350-34355
PositionWalker Products Aftermarket, Downstream
Connector GenderFemale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length50.91
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length47.36

This part fits 13 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2009NissanPickup2.4LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2000NissanFrontier2.4LL4GASDownstreamDownstream oxygen sensor for B1S2, not for vehicles in California.; Walker Products Aftermarket
2000NissanFrontier2.4LL4GASDownstreamDownstream Bank 1 Sensor 2 for Non-Calif-ESV vehicles.; Walker Products Aftermarket
2000NissanFrontier2.4LL4GASDownstreamDownstream oxygen sensor for second bank, sensor 1, non-California emissions.; Walker Products Aftermarket
2000NissanXterra2.4LL4GASDownstreamDownstream oxygen sensor for B1S2, not for vehicles in California.; Walker Products Aftermarket
2000NissanXterra2.4LL4GASDownstreamDownstream Bank 1 Sensor 2 for Non-Calif-ESV vehicles.; Walker Products Aftermarket
2000NissanXterra2.4LL4GASDownstreamDownstream oxygen sensor for second bank, sensor 1, non-California emissions.; Walker Products Aftermarket
1999NissanFrontier2.4LL4GASDownstreamDownstream oxygen sensor for B1S2, not for vehicles in California.; Walker Products Aftermarket
1999NissanFrontier2.4LL4GASDownstreamDownstream Bank 1 Sensor 2 for Non-Calif-ESV vehicles.; Walker Products Aftermarket
1999NissanFrontier2.4LL4GASDownstreamDownstream oxygen sensor for second bank, sensor 1, non-California emissions.; Walker Products Aftermarket
1998NissanFrontier2.4LL4GASDownstreamDownstream oxygen sensor for B1S2, not for vehicles in California.; Walker Products Aftermarket
1998NissanFrontier2.4LL4GASDownstreamDownstream Bank 1 Sensor 2 for Non-Calif-ESV vehicles.; Walker Products Aftermarket
1998NissanFrontier2.4LL4GASDownstreamDownstream oxygen sensor for second bank, sensor 1, non-California emissions.; 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.