HomeEmission Control > SensorsWalker 250-24334 Oxygen Sensor - Downstream
Part #: 250-24334

Walker 250-24334 Oxygen Sensor - Downstream

Walker Products OE, Downstream
12 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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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products OE, Downstream
Fitment: Chevrolet and Pontiac, Cavalier, Grand Am, and Sunfire
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 250-24334 Oxygen Sensor

The Walker 250-24334 oxygen sensor is designed specifically for Chevrolet Cavalier, Pontiac Grand Am, and 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, Pontiac Grand Am, and Sunfire
  • 46.77-inch wiring harness length for convenient installation
  • 20 gauge wire measurement with 4 wires for reliable signal transmission
  • Threaded mounting type with 18.0 mm thread diameter
  • Radiused polygon male connector for secure connection
  • Overall length of 50.31 inches

Detailed Product Description

This Walker Products OE oxygen sensor (part number 250-24334) is engineered to meet the exact specifications of select GM vehicles, including the Chevrolet Cavalier, Pontiac Grand Am, and Sunfire. Featuring a heated sensor element, it quickly reaches operating temperature to provide accurate oxygen level readings, which are critical for maintaining efficient combustion and reducing emissions. The sensor includes a 46.77-inch wiring harness with 20 gauge wires and a radiused polygon male connector, ensuring a precise and secure fit. Its threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the exhaust system.

Walker Products OE Line Information

The Walker Products OE line focuses on delivering original equipment quality parts designed to match or exceed factory specifications. This oxygen sensor is part of that line, ensuring compatibility and performance consistent with the original sensor installed on Chevrolet Cavalier, Pontiac Grand Am, and Sunfire vehicles. Using a Walker Products OE sensor helps maintain the integrity of the vehicle’s emission control system.

Common Applications and Issues Addressed

  • Restores proper air-fuel ratio readings for improved fuel efficiency
  • Resolves check engine light triggers related to oxygen sensor faults
  • Helps reduce harmful emissions by providing accurate sensor data
  • Prevents engine performance issues caused by faulty oxygen sensors
  • Supports smooth engine idling and acceleration

Installation Notes and Tips

When installing the Walker 250-24334 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 is securely attached to the vehicle’s wiring harness. Follow manufacturer torque specifications to avoid sensor or exhaust system damage. This sensor is a specific fit for Chevrolet Cavalier, Pontiac Grand Am, and Sunfire models, so confirm vehicle compatibility before installation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards, ensuring reliable performance and durability. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain compliance with emissions regulations and supports long-term vehicle operation.

BrandWalker
Part Number250-24334
PositionWalker Products OE, Downstream
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length50.31
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length46.77

This part fits 12 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2005ChevroletCavalier2.2LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2005PontiacGrand Am3.4LV6GASDownstreamDownstream oxygen sensor for vehicle installation.; Walker Products OE
2005PontiacSunfire2.2LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2004ChevroletCavalier2.2LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2004ChevroletCavalier2.2LL4BI-FUELDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2004PontiacSunfire2.2LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2003ChevroletCavalier2.2LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2003ChevroletCavalier2.2LL4BI-FUELDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2003PontiacSunfire2.2LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2002ChevroletCavalier2.2LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2002ChevroletCavalier2.2LL4BI-FUELDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2002PontiacSunfire2.2LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE

* 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.