Walker 250-25045 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Overview of Walker Products OE Oxygen Sensor 250-25045

The Walker Products OE Oxygen Sensor 250-25045 is designed for precise emission control in select BMW, Dodge, and Mercedes-Benz vehicles. This heated oxygen sensor ensures accurate air-fuel mixture readings to maintain optimal engine performance and emissions compliance.

• Heated sensor type for faster response times
• Specific fit for models including BMW 528i, Dodge Sprinter 2500, and Mercedes-Benz AMG GT 63
• 30.04-inch wiring harness length with 5 wires of 20 gauge
• Threaded mounting with 18.0 mm thread diameter
• Radiused polygon male connector for secure connection
• Overall length of 33.58 inches for proper installation

Detailed Product Features and Specifications

This oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The 5-wire configuration with 20 gauge wiring supports reliable signal transmission and heater circuit operation. The 30.04-inch wiring harness length provides sufficient reach for installation in the engine bay, while the radiused polygon male connector ensures a secure and precise fit. The sensor mounts via an 18.0 mm threaded fitting, compatible with specific OEM locations on select BMW, Dodge, and Mercedes-Benz models.

Walker Products OE Brand Line Information

Walker Products OE is a product line focused on delivering original equipment quality emission control components. This oxygen sensor is engineered to meet or exceed OEM specifications, ensuring compatibility and performance for vehicles such as the BMW 528i, Dodge Sprinter 3500, and Mercedes-Benz AMG GT 63 S. The OE line emphasizes durability and precise fitment, supporting proper engine management and emissions compliance.

Compatible Vehicles and Common Applications

• BMW 528i, E280, E350, X3
• Dodge Sprinter 2500, Sprinter 3500
• Mercedes-Benz AMG GT 63, AMG GT 63 S, C63 AMG S, CLS63 AMG, E63 AMG, S63 AMG, SL63 AMG, and other AMG and standard models

Common Issues Addressed by This Oxygen Sensor

• Check engine light triggered by faulty oxygen sensor readings
• Poor fuel economy due to incorrect air-fuel mixture
• Increased emissions and failed emissions tests
• Engine hesitation or rough idling
• Reduced engine performance and drivability issues

Installation Notes and Tips

Ensure the vehicle is cool before installation to avoid burns. Disconnect the battery prior to sensor replacement to prevent electrical shorts. Use a proper oxygen sensor socket to avoid damage to the sensor or wiring harness. Verify the connector type and wiring configuration matches the vehicle’s OEM specifications. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper operation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict OEM standards for fit, form, and function. This part number 250-25045 undergoes rigorous testing to ensure durability and reliable performance. Warranty coverage details should be confirmed with the product documentation or supplier.