HomeEmission Control > SensorsWalker 350-34226 Oxygen Sensor - Upstream
Part #: 350-34226

Walker 350-34226 Oxygen Sensor - Upstream

Walker Products Aftermarket, Upstream
8 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$74.97Free 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 Aftermarket, Upstream
Fitment: Mercedes-Benz, C220 and C230
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker Oxygen Sensor 350-34226 for Mercedes-Benz C220 and C230

The Walker 350-34226 oxygen sensor is designed specifically for Mercedes-Benz C220 and C230 models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

  • Heated oxygen sensor with 4-wire configuration
  • Specific fit for Mercedes-Benz C220 and C230
  • Threaded mounting type with 18.0 mm thread diameter
  • Radiused polygon male connector for secure connection
  • Wiring harness length of 36.14 inches and overall length of 39.69 inches
  • Wire gauge measurement of 20 for reliable signal transmission

Detailed Features and Specifications

This Walker oxygen sensor (part number 350-34226) features a heated sensor type that allows for faster warm-up times and improved accuracy in emissions monitoring. The sensor includes a 4-wire design, which supports both the heating element and signal wires, ensuring consistent performance. The wiring harness length of 36.14 inches and overall length of 39.69 inches provide sufficient reach for installation in the exhaust system of Mercedes-Benz C220 and C230 vehicles. The sensor mounts via a threaded connection with an 18.0 mm diameter, compatible with the factory mounting points. The radiused polygon male connector ensures a secure and precise fit, reducing the risk of connection issues.

Walker Products Aftermarket Line

Walker Products Aftermarket offers a range of emission control components designed to meet or exceed OEM specifications. This oxygen sensor is part of their aftermarket line, providing a reliable replacement option tailored for specific vehicle applications such as the Mercedes-Benz C220 and C230. The focus on exact fitment and quality materials supports proper engine management and emissions compliance.

Common Applications and Issues Addressed

  • Restores accurate oxygen sensing for proper air-fuel mixture control
  • Helps resolve check engine light codes related to oxygen sensor failure
  • Improves fuel efficiency by providing precise exhaust gas data
  • Reduces harmful emissions by ensuring proper catalytic converter function
  • Prevents engine performance issues caused by faulty sensor readings

Installation Notes and Tips

When installing the Walker 350-34226 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. Confirm the radiused polygon male connector aligns correctly with the vehicle’s wiring harness connector. Thread the sensor carefully into the exhaust port to avoid cross-threading. After installation, clear any diagnostic trouble codes and verify sensor operation with a scan tool.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards for durability and performance. While specific warranty details for part number 350-34226 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship to ensure long-term reliability in Mercedes-Benz C220 and C230 applications.

BrandWalker
Part Number350-34226
PositionWalker Products Aftermarket, Upstream
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length39.69
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length36.14

This part fits 8 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1996Mercedes-BenzC2202.2LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1996Mercedes-BenzC2202.2LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1996Mercedes-BenzC2302.3LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1996Mercedes-BenzC2302.3LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1995Mercedes-BenzC2202.2LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1995Mercedes-BenzC2202.2LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
1994Mercedes-BenzC2202.2LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
1994Mercedes-BenzC2202.2LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket

* 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.