Front Oxygen Sensor for 2004-2009 Subaru Outback & More - Delphi ES10943

Delphi ES10943 front oxygen sensor for the 2004-2009 Subaru Outback H4 2.5L and other vehicles measures the oxygen in the exhaust and sends that reading to the engine computer. This Delphi oxygen sensor is built to Delphi's OE standards.

• Delphi planar technology covers older, conical design sensors
• Smart design consolidates SKUs without using long wires
• Patented protective sensor coating helps prevent contamination
• Validated for all fuel types, including ethanol blends like E85
• Tested to 150,000 miles, plus 2,000 hours of severe thermal testing

Quick facts

• Part: Delphi ES10943 oxygen sensor
• Fits: 2004-2009 Subaru Outback H4 2.5L and other vehicles
• Position: Front
• Condition: New

A rough idle, a check engine light or lower fuel economy can mean the sensor is worn, though a leaking vacuum hose or a worn spark plug can bring on similar symptoms, so trace the cause before you buy one. If the sensor is the cause, this one replaces it.

Fits

The 2004-2009 Subaru Outback H4 2.5L and the 2004-2005 Subaru Forester H4 2.5L take one of these sensors each, and it is also the oxygen sensor for the 2004-2009 Subaru Legacy H4 2.5L and many other vehicles. If your car is not named here, look up its year and engine on the Buyer's Guide tab.

Specifications

In the box

One oxygen sensor and one instruction sheet.