Denso 234-4317 Oxygen Sensor - Upstream
OE Quality 60-Day Returns
Denso
 OE Style

Denso 234-4317 Oxygen Sensor - Upstream

Brand Denso 234-4317
Position Upstream
Connector Gender Male
Mounting Type Threaded
Sensor Type Heated
Thread Diameter 0.708
Universal Or Specific Fit Specific
Wire Quantity 4
Wiring Harness Length 20.87
Product line OE Style
Fits Mitsubishi · 16 vehicles

OE style replacement. Precision-built for exact replacement and a first-time fit.

Heated sensor. Helps maintain accurate readings for efficient engine performance.

Aluminum oxide trap layer. Protects the ceramic element from silicone and lead poisoning.

Cross-references Bosch 15188, Bosch 15582 and Delphi ES20195 for the same application. See all 14.

$72.76Free shipping
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Denso 234-4317 Oxygen Sensor

Denso OE Style Oxygen Sensor 234-4317 is a direct-fit, heated sensor built for precise replacement and consistent signal performance. It is engineered for specific applications on Mitsubishi Eclipse and Mitsubishi Galant models, with OE-style fitment that supports accurate exhaust monitoring.

Key Features

  • Heated oxygen sensor for faster operating response
  • Specific-fit design for direct replacement
  • 4-wire configuration with male connector
  • Threaded mounting with 0.708 in. thread diameter
  • 20.87 in. wiring harness length
  • OE Style construction for factory-style fit and function

OE Style Construction

Denso’s OE Style line is built to match original equipment requirements for fit, form, and function. The 234-4317 uses precision-built components and an aluminum oxide trap layer that helps protect the ceramic element from silicone and lead contamination, supporting stable engine management and long service life. This part cross-references Bosch 15188 and Delphi ES20195 for the same application.

Vehicle Fitment

  • Fits 2006-2012 Mitsubishi Eclipse, upstream, Cylinder 3,4; OE Style
  • Fits 2008-2012 Mitsubishi Galant, upstream, Cylinder 2,3; OE Style
  • Fits 2004-2006 Mitsubishi Galant, upstream, Cylinder 2,3; OE Style
  • Fits 2007 Mitsubishi Galant, upstream, Cylinder 1,2; OE Style

Common Reasons to Replace

  • Check engine light related to oxygen sensor performance
  • Rough idle or inconsistent air-fuel control
  • Reduced fuel economy from inaccurate exhaust readings
  • Slow sensor response during closed-loop operation
  • Emissions test failure tied to upstream sensor faults

Installation Notes

Confirm the upstream location and cylinder application before ordering. Match the 4-wire connector, threaded mount, and harness length to the original sensor on the vehicle. For Mitsubishi Eclipse and Mitsubishi Galant applications, verify the engine configuration and sensor position against the original part number before installation.

Quality Assurance

Denso manufactures and tests this oxygen sensor to OE standards for exact replacement fitment and consistent performance. The OE Style design is intended to deliver the correct part and fit for the listed Mitsubishi applications.

Related reading

This part fits 16 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2012MitsubishiEclipseUpstreamCylinder 3,4; OE Style
2012MitsubishiGalantUpstreamCylinder 2,3; OE Style
2011MitsubishiEclipseUpstreamCylinder 3,4; OE Style
2011MitsubishiGalantUpstreamCylinder 2,3; OE Style
2010MitsubishiEclipseUpstreamCylinder 3,4; OE Style
2010MitsubishiGalantUpstreamCylinder 2,3; OE Style
2009MitsubishiEclipseUpstreamCylinder 3,4; OE Style
2009MitsubishiGalantUpstreamCylinder 2,3; OE Style
2008MitsubishiEclipseUpstreamCylinder 3,4; OE Style
2008MitsubishiGalantUpstreamCylinder 2,3; OE Style
2007MitsubishiEclipseUpstreamCylinder 3,4; OE Style
2007MitsubishiGalantUpstreamCylinder 1,2; OE Style
2006MitsubishiEclipseUpstreamCylinder 3,4; OE Style
2006MitsubishiGalantUpstreamCylinder 2,3; OE Style
2005MitsubishiGalantUpstreamCylinder 2,3; OE Style
2004MitsubishiGalantUpstreamCylinder 2,3; OE Style
Directly replaces or cross-references 14 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Bosch — 15188Bosch — 15582Delphi — ES20195Delphi — ES20412Mitsubishi — 1588A047Mitsubishi — 1588A207Mitsubishi — MN183469NTK — 23524NTK — 24690Standard Ignition — SG1467Walker Products — 250-24242Walker Products — 250-24662Walker Products — 350-34097Walker Products — 350-34449