HomeEmission Control > SensorsWalker 350-35004 Oxygen Sensor - Upstream Left or Upstream Right
Part #: 350-35004

Walker 350-35004 Oxygen Sensor - Upstream Left or Upstream Right

Walker Products Aftermarket, Upstream Left
⚙️ 8 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Walker Products Aftermarket, Upstream Left
🚗Fitment: Mercedes-Benz, SLK55 AMG and SLK350
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 350-35004 Oxygen Sensor for Mercedes-Benz SLK Models

The Walker 350-35004 oxygen sensor is designed specifically for Mercedes-Benz SLK55 AMG and SLK350 models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

  • Heated sensor type for faster activation and improved efficiency
  • Specific fit for Mercedes-Benz SLK55 AMG and SLK350
  • Threaded mounting type with 18.0 mm thread diameter
  • 25.12 inches wiring harness length with 5 wires of 20 gauge
  • Radiused polygon male connector for secure electrical connection
  • Overall length of 28.66 inches for proper installation depth

Detailed Product Description

This oxygen sensor from Walker Products Aftermarket is engineered to meet the exact specifications required by Mercedes-Benz SLK55 AMG and SLK350 vehicles. The heated sensor design allows the unit to reach operating temperature quickly, reducing emissions during cold starts. The 5-wire configuration with 20 gauge wiring ensures reliable signal transmission and durability. The radiused polygon male connector provides a secure and precise fit, minimizing the risk of electrical issues. With a threaded mounting type and an 18.0 mm thread diameter, installation aligns with factory standards for these specific models.

Walker Products Aftermarket Line Information

Walker Products Aftermarket offers a comprehensive range of emission control components designed to meet or exceed OEM standards. The 350-35004 oxygen sensor is part of this line, focusing on delivering reliable, vehicle-specific solutions for emission sensors. This product line emphasizes compatibility and quality to support proper engine management and emissions compliance for Mercedes-Benz vehicles.

Common Applications and Issues Addressed

  • Restores accurate oxygen sensing for proper air-fuel mixture control
  • Helps resolve check engine light triggers related to oxygen sensor faults
  • Improves fuel efficiency by providing precise exhaust gas data
  • Reduces harmful emissions by ensuring proper catalytic converter function
  • Eliminates rough idling or engine hesitation caused by faulty sensors

Installation Notes and Tips

When installing the Walker 350-35004 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector type matches the vehicle harness before installation. Properly route the wiring harness to prevent contact with hot exhaust components or moving parts. Torque the sensor to manufacturer specifications to ensure a secure fit and prevent exhaust leaks.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors undergo rigorous testing to meet emission control standards and vehicle-specific requirements. The 350-35004 part number is manufactured to provide consistent performance and durability. While specific warranty details are not provided here, Walker typically offers coverage against defects in materials and workmanship, supporting long-term reliability for Mercedes-Benz SLK55 AMG and SLK350 owners.

BrandWalker
Part Number350-35004
PositionWalker Products Aftermarket, Upstream Left
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length28.66
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity5
Wiring Harness Length25.12

This part fits 8 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2015Mercedes-BenzSLK55 AMG5.5LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products Aftermarket
2014Mercedes-BenzSLK55 AMG5.5LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products Aftermarket
2013Mercedes-BenzSLK3503.5LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products Aftermarket
2013Mercedes-BenzSLK3503.5LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products Aftermarket
2013Mercedes-BenzSLK55 AMG5.5LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products Aftermarket
2012Mercedes-BenzSLK3503.5LV6GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products Aftermarket
2012Mercedes-BenzSLK3503.5LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products Aftermarket
2012Mercedes-BenzSLK55 AMG5.5LV8GASUpstream LeftInstall upstream oxygen sensor on the left side.; 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.