HomeEmission Control > SensorsWalker 250-23067 Oxygen Sensor - Upstream
Part #: 250-23067

Walker 250-23067 Oxygen Sensor - Upstream

Walker Products OE, Upstream
17 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$84.11Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products OE, Upstream
Fitment: Mercedes-Benz, 190E
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker Products OE Oxygen Sensor 250-23067

The Walker Products OE Oxygen Sensor 250-23067 is designed specifically for the Mercedes-Benz 190E, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a radiused polygon connector for secure installation.

  • Heated oxygen sensor with 3-wire configuration
  • Specific fit for Mercedes-Benz 190E models
  • Threaded mounting with 18.0 mm thread diameter
  • Wiring harness length of 10.35 inches and overall length of 13.9 inches
  • Connector includes both male and female radiused polygon shapes
  • Wire gauge measurement of 20 for reliable signal transmission

Detailed Features and Specifications

This Walker Products OE oxygen sensor (part number 250-23067) is engineered to meet the exact specifications required by the Mercedes-Benz 190E. The sensor is heated, which allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. It includes a 3-wire setup with a wire gauge of 20, providing accurate oxygen level readings to the engine control unit. The wiring harness length is 10.35 inches, while the overall length of the sensor is 13.9 inches, allowing for proper fitment and ease of installation. The sensor mounts via a threaded connection with an 18.0 mm diameter, and the connector features a radiused polygon shape with both male and female ends to ensure a secure and reliable electrical connection.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory standards. This oxygen sensor is part of that line, designed to provide a direct replacement for the factory-installed sensor on the Mercedes-Benz 190E. The OE line emphasizes precise fitment and reliable performance, making it suitable for emission control systems requiring exact specifications.

Common Applications and Problem Resolution

  • Restores accurate oxygen sensing for proper air-fuel mixture control
  • Helps resolve engine performance issues related to faulty sensors
  • Reduces emissions by ensuring correct sensor operation
  • Prevents check engine light triggers caused by sensor failure
  • Improves fuel economy by providing accurate feedback to the ECU

Installation Notes and Tips

When installing the Walker Products OE oxygen sensor 250-23067 on a Mercedes-Benz 190E, ensure the threaded mounting hole is clean and free of debris. Use anti-seize compound on the threads if recommended by the vehicle manufacturer to prevent seizing. Verify the connector orientation matches the radiused polygon shape for proper electrical connection. Avoid pulling on the wiring harness during installation to prevent damage to the sensor wires.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring durability and reliable performance. This part number 250-23067 undergoes rigorous testing to comply with emission control requirements. Warranty coverage details should be confirmed with the product documentation or supplier, as it may vary by region.

BrandWalker
Part Number250-23067
PositionWalker Products OE, Upstream
Connector GenderFemale
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length13.9
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity3
Wiring Harness Length10.35

This part fits 17 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1993Mercedes-Benz190E2.6LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1992Mercedes-Benz190E2.6LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1991Mercedes-Benz190E2.6LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1990Mercedes-Benz190E2.6LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1989Mercedes-Benz190E2.6LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1988Mercedes-Benz190E2.6LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1988Mercedes-Benz190E2.3LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1988Mercedes-Benz190E2.3LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1987Mercedes-Benz190E2.6LL6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products OE
1987Mercedes-Benz190E2.3LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1987Mercedes-Benz190E2.3LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1986Mercedes-Benz190E2.3LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1986Mercedes-Benz190E2.3LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1985Mercedes-Benz190E2.3LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1985Mercedes-Benz190E2.3LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1984Mercedes-Benz190E2.3LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1984Mercedes-Benz190E2.3LL4GASUpstreamFront oxygen sensor compatible with various 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.