HomeEmission Control > SensorsWalker 250-24189 Oxygen Sensor - Downstream
Part #: 250-24189

Walker 250-24189 Oxygen Sensor - Downstream

Walker Products OE, Downstream
15 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 Geo, Tracker
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 250-24189 Oxygen Sensor for Chevrolet Tracker

The Walker 250-24189 oxygen sensor is designed specifically for Chevrolet and Geo Tracker models, providing precise emission control and engine performance monitoring. This heated oxygen sensor ensures accurate readings for optimal fuel efficiency and reduced emissions.

  • Heated sensor type for faster response times
  • Specific fit for Chevrolet and Geo Tracker vehicles
  • Threaded mounting type with 18.0 mm thread diameter
  • 21.38-inch wiring harness length with 4 wires of 20 gauge
  • Radiused polygon female connector for secure connection
  • Overall length of 24.92 inches for proper installation

Detailed Product Features and Specifications

The Walker 250-24189 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving emission control accuracy. It is designed with a 21.38-inch wiring harness and four 20-gauge wires, ensuring reliable electrical connectivity. The sensor’s radiused polygon female connector provides a secure and precise fit, reducing the risk of connection issues. With a threaded mounting type and an 18.0 mm thread diameter, installation is straightforward and compatible with the exhaust system of Chevrolet and Geo Tracker models. The overall length of 24.92 inches accommodates proper placement within the vehicle’s emission system.

Walker Products OE Brand Line Information

This oxygen sensor is part of the Walker Products OE line, which focuses on delivering original equipment quality parts designed to meet or exceed factory specifications. The Walker Products OE line ensures that components like the 250-24189 oxygen sensor maintain the performance and reliability expected from original manufacturer parts, making it a suitable replacement for emission control sensors in Chevrolet and Geo Tracker vehicles.

Common Applications and Issues Addressed

  • Helps maintain proper air-fuel mixture for efficient engine operation
  • Reduces harmful emissions by providing accurate oxygen level data
  • Prevents engine performance issues related to faulty oxygen sensors
  • Addresses check engine light triggers caused by sensor failure
  • Improves fuel economy by ensuring correct sensor feedback

Installation Notes and Tips

When installing the Walker 250-24189 oxygen sensor, ensure the threaded mounting is securely tightened to the exhaust system to prevent leaks. Verify the radiused polygon female connector is fully engaged to avoid electrical connection problems. It is recommended to handle the sensor carefully to avoid damage to the wiring harness and sensor tip. Proper installation will help maintain accurate sensor readings and vehicle performance.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring durability and reliable performance. The 250-24189 part number undergoes rigorous testing to comply with emission control requirements. Warranty details are provided by Walker and typically cover defects in materials and workmanship, supporting long-term use in Chevrolet and Geo Tracker vehicles.

BrandWalker
Part Number250-24189
PositionWalker Products OE, Downstream
Connector GenderFemale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length24.92
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length21.38

This part fits 15 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2000ChevroletTracker2.0LL4GASDownstreamDownstream oxygen sensor for B1S2, not for vehicles in California.; Walker Products OE
2000ChevroletTracker1.6LL4GASDownstreamDownstream oxygen sensor for B1S2, not for vehicles in California.; Walker Products OE
2000ChevroletTracker2.0LL4GASDownstreamDownstream Bank 1 Sensor 2 for Non-Calif-ESV vehicles.; Walker Products OE
2000ChevroletTracker1.6LL4GASDownstreamDownstream Bank 1 Sensor 2 for Non-Calif-ESV vehicles.; Walker Products OE
2000ChevroletTracker2.0LL4GASDownstreamDownstream oxygen sensor for second bank, sensor 1, non-California emissions.; Walker Products OE
2000ChevroletTracker1.6LL4GASDownstreamDownstream oxygen sensor for second bank, sensor 1, non-California emissions.; Walker Products OE
1999ChevroletTracker2.0LL4GASDownstreamDownstream oxygen sensor for B1S2, not for vehicles in California.; Walker Products OE
1999ChevroletTracker1.6LL4GASDownstreamDownstream oxygen sensor for B1S2, not for vehicles in California.; Walker Products OE
1999ChevroletTracker2.0LL4GASDownstreamDownstream Bank 1 Sensor 2 for Non-Calif-ESV vehicles.; Walker Products OE
1999ChevroletTracker1.6LL4GASDownstreamDownstream Bank 1 Sensor 2 for Non-Calif-ESV vehicles.; Walker Products OE
1999ChevroletTracker2.0LL4GASDownstreamDownstream oxygen sensor for second bank, sensor 1, non-California emissions.; Walker Products OE
1999ChevroletTracker1.6LL4GASDownstreamDownstream oxygen sensor for second bank, sensor 1, non-California emissions.; Walker Products OE
1998ChevroletTracker1.6LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
1997GeoTracker1.6LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
1996GeoTracker1.6LL4GASDownstreamFits 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.