HomeEmission Control > SensorsWalker 350-34211 Oxygen Sensor - Downstream
Part #: 350-34211

Walker 350-34211 Oxygen Sensor - Downstream

Walker Products Aftermarket, Downstream
⚙️ 11 vehicles fit this part
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Walker Products Aftermarket, Downstream
🚗Fitment: Chevrolet and Pontiac, Cavalier and Sunfire
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Oxygen Sensor for Chevrolet Cavalier and Pontiac Sunfire

The Walker 350-34211 oxygen sensor is designed specifically for Chevrolet Cavalier and Pontiac Sunfire models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle's engine control unit.

  • Heated sensor type for faster response times
  • Specific fit for Chevrolet Cavalier and Pontiac Sunfire
  • Threaded mounting type with 18.0 mm thread diameter
  • 53.66 inches wiring harness length with 4 wires of 20 gauge
  • Radiused polygon male connector for secure connection
  • Overall length of 57.2 inches for proper installation

Walker Products Aftermarket Line Overview

The Walker Products Aftermarket line offers a range of emission control components engineered to meet or exceed OEM specifications. This oxygen sensor from Walker Products Aftermarket is built to provide reliable performance and durability, ensuring compatibility and proper function in Chevrolet Cavalier and Pontiac Sunfire vehicles.

Detailed Oxygen Sensor Description

This Walker oxygen sensor (part number 350-34211) features a heated sensor element that allows it to reach operating temperature quickly, improving emissions control efficiency. The sensor includes a 4-wire configuration with 20 gauge wiring, providing stable signal transmission. Its radiused polygon male connector ensures a secure and precise fit, while the threaded mounting type with an 18.0 mm diameter allows for straightforward installation. The wiring harness length of 53.66 inches and overall length of 57.2 inches are designed to accommodate the specific routing requirements of the Chevrolet Cavalier and Pontiac Sunfire models.

Common Applications and Issues Addressed

  • Helps maintain proper air-fuel ratio for efficient combustion
  • Reduces harmful emissions by providing accurate sensor data
  • Prevents engine performance issues related to faulty oxygen sensors
  • Addresses check engine light triggers related to oxygen sensor faults
  • Supports smooth engine idling and acceleration

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. Use the correct tools to remove the old sensor and install the Walker 350-34211 oxygen sensor. Verify the connector type matches the vehicle harness to avoid connection issues. Thread the sensor carefully to prevent damage to the mounting threads. After installation, clear any diagnostic trouble codes and perform a test drive to 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 350-34211 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship to ensure reliable performance in Chevrolet Cavalier and Pontiac Sunfire vehicles.

BrandWalker
Part Number350-34211
PositionWalker Products Aftermarket, Downstream
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length57.2
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length53.66

This part fits 11 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2001ChevroletCavalier2.2LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2001PontiacSunfire2.2LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2000ChevroletCavalier2.2LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2000ChevroletCavalier2.2LL4BI-FUELDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2000PontiacSunfire2.2LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
1999ChevroletCavalier2.2LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
1999ChevroletCavalier2.2LL4BI-FUELDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
1999PontiacSunfire2.2LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
1998ChevroletCavalier2.2LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
1997ChevroletCavalier2.2LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
1996ChevroletCavalier2.2LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; 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.