Walker 250-23028 Oxygen Sensor - Downstream, Upstream, Upstream Left or Upstream Right

Overview of Walker 250-23028 Oxygen Sensor

The Walker 250-23028 oxygen sensor is designed specifically for select Audi, Ferrari, Saab, and Volvo models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases precisely.

• Heated sensor type for faster response times
• Threaded mounting with 18.0 mm thread diameter
• 25.51-inch wiring harness length with 20 gauge wire
• Three-wire configuration with radiused polygon connectors (male and female)
• Overall length of 29.06 inches for proper fitment

Walker Products OE Line Details

This oxygen sensor is part of the Walker Products OE line, which focuses on delivering original equipment quality and fitment. The OE line ensures that each sensor meets or exceeds factory specifications, providing reliable performance and compatibility with specific vehicle applications.

Product Features and Specifications

The Walker 250-23028 oxygen sensor features a heated sensor element that allows quicker activation and more accurate readings under various operating conditions. Its 25.51-inch wiring harness and 20 gauge wire ensure durability and proper electrical conductivity. The sensor’s three-wire design includes both male and female radiused polygon connectors, facilitating secure and precise connections. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation in compatible exhaust systems.

Compatible Vehicles and Applications

• Compatible with Audi 90, 90 Quattro, 100, 100 Quattro, and A6 Quattro models
• Fits Ferrari Mondial 3.2
• Suitable for Saab 900 and 9000 series
• Designed for Volvo 740 and 745 models

Common Issues Addressed by This Oxygen Sensor

• Incorrect air-fuel mixture readings causing poor fuel economy
• Check engine light triggered by faulty oxygen sensor signals
• Increased emissions due to sensor malfunction
• Engine performance issues such as rough idling or hesitation
• Failed emissions tests related to sensor accuracy

Installation Notes and Tips

Ensure the vehicle is cool before removing the old oxygen sensor to avoid burns. Use the correct socket size for the 18.0 mm threaded sensor to prevent damage. Verify connector orientation with the radiused polygon shape to ensure proper electrical connection. Confirm the wiring harness length of 25.51 inches is sufficient for your vehicle’s routing requirements.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring reliable operation and durability. This part number 250-23028 is backed by Walker’s quality assurance processes, providing confidence in fit and function for the specified Audi, Ferrari, Saab, and Volvo models.