HomeEmission Control > SensorsWalker 350-34245 Oxygen Sensor - Downstream Front or Downstream Rear
Part #: 350-34245

Walker 350-34245 Oxygen Sensor - Downstream Front or Downstream Rear

Walker Products Aftermarket, Downstream Front
⚙️ 21 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, Downstream Front
🚗Fitment: Mitsubishi, Eclipse, Endeavor, and Galant
🔄Easy Returns — Return within 60 days for a full refund
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Overview of Walker 350-34245 Oxygen Sensor

The Walker 350-34245 oxygen sensor is designed specifically for Mitsubishi vehicles including the Eclipse, Endeavor, and Galant models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle's engine management system.

  • Heated sensor type for faster response times
  • Specific fit for Mitsubishi Eclipse, Endeavor, and Galant
  • 26.1-inch wiring harness length with 20 gauge wire
  • Four-wire configuration with radiused polygon male connector
  • Threaded mounting with 18.0 mm thread diameter
  • Overall length of 29.65 inches for proper installation

Detailed Product Description

This oxygen sensor from Walker Products Aftermarket is engineered to meet the exact specifications required by Mitsubishi vehicles such as the Eclipse, Endeavor, and Galant. The heated sensor type allows the unit to reach operating temperature quickly, improving emissions control and fuel efficiency. Featuring a 26.1-inch wiring harness with 20 gauge wires, the sensor provides reliable electrical connectivity. The four-wire design supports both the sensor signal and heater circuit, while the radiused polygon male connector ensures a secure and precise fit. The threaded mounting style with an 18.0 mm diameter allows for straightforward installation in the designated exhaust port. The overall length of 29.65 inches accommodates proper placement within the exhaust system.

Walker Products Aftermarket Line

The Walker Products Aftermarket line focuses on providing replacement emission control components that meet or exceed OEM standards. This oxygen sensor is part of that line, offering a direct fit solution for Mitsubishi vehicles. The product line emphasizes durability and compatibility, ensuring that the sensor integrates seamlessly with the vehicle’s existing systems.

Common Applications and Issues Addressed

  • Restores accurate air-fuel ratio readings for Mitsubishi Eclipse, Endeavor, and Galant
  • Helps resolve check engine light triggers related to oxygen sensor faults
  • Improves fuel economy by providing precise emissions data
  • Reduces harmful exhaust emissions by maintaining proper combustion
  • Prevents engine performance issues caused by faulty oxygen sensors

Installation Notes and Tips

Installation requires removal of the old oxygen sensor from the threaded exhaust port. The 18.0 mm thread diameter matches OEM specifications for a direct replacement. Ensure the wiring harness is routed away from hot exhaust components to prevent damage. The radiused polygon male connector should be securely connected to the vehicle’s wiring harness to maintain signal integrity. It is recommended to use anti-seize compound on the threads to facilitate future removal.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards for fit, form, and function. While specific warranty details are not provided here, Walker typically offers coverage against defects in materials and workmanship. This oxygen sensor is designed to provide reliable performance consistent with OEM requirements for Mitsubishi Eclipse, Endeavor, and Galant models.

BrandWalker
Part Number350-34245
PositionWalker Products Aftermarket, Downstream Front
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length29.65
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length26.1

This part fits 21 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2012MitsubishiEclipse3.8LV6Downstream FrontDownstream front oxygen sensor required.; Walker Products Aftermarket
2011MitsubishiEclipse3.8LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket
2011MitsubishiEndeavor3.8LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products Aftermarket
2010MitsubishiEclipse3.8LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products Aftermarket
2010MitsubishiEndeavor3.8LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products Aftermarket
2009MitsubishiEclipse3.8LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products Aftermarket
2009MitsubishiEndeavor3.8LV6Downstream FrontOE Replacement
2009MitsubishiGalant3.8LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products Aftermarket
2008MitsubishiEclipse3.8LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products Aftermarket
2008MitsubishiEndeavor3.8LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products Aftermarket
2008MitsubishiGalant3.8LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products Aftermarket
2007MitsubishiEclipse3.8LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products Aftermarket
2007MitsubishiEndeavor3.8LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products Aftermarket
2007MitsubishiGalant3.8LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products Aftermarket
2006MitsubishiEclipse3.8LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products Aftermarket
2006MitsubishiEndeavor3.8LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products Aftermarket
2006MitsubishiGalant3.8LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products Aftermarket
2005MitsubishiEndeavor3.8LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products Aftermarket
2005MitsubishiGalant3.8LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products Aftermarket
2004MitsubishiEndeavor3.8LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products Aftermarket
2004MitsubishiGalant3.8LV6GASDownstream FrontDownstream front oxygen sensor required.; 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.