Oxygen Sensor for 2000-2004 Subaru Outback & More - Bosch 15814

Bosch 15814 oxygen sensor for the 2000-2004 Subaru Outback H4 2.5L and other vehicles measures the air-fuel ratio in the exhaust and reports it to the ECU. The ECU uses that signal to keep combustion stable and help reduce emissions.

• Narrow-band, switching-type heated sensor that sends air-fuel-ratio readings to the ECU
• Metal housing, integrated heater element and TSP coating to resist vibration, corrosion and contamination
• Built to withstand exhaust streams up to 1,880°F
• Reaches operating temperature in under 10 seconds for quick closed-loop control
• Direct-fit connector and pre-applied conductive anti-seize on the threads

Quick facts

• Part: Bosch 15814 oxygen sensor
• Fits: 2000-2004 Subaru Outback H4 2.5L and other vehicles
• Position: Downstream
• Material: Metal (housing)
• Condition: New

A weak downstream sensor can show up as a check engine light, a drop in fuel economy or a rough idle. The same symptoms can also come from a damaged connector or an exhaust leak, so track down the cause first.

Fits

It is also an oxygen sensor for the 1999 Subaru Legacy H4 2.2L and the 1999-2004 Legacy H4 2.5L, and an oxygen sensor for the 2003-2006 Subaru Baja H4 2.5L.

Specifications

In the box

One oxygen sensor with its wiring harness. This listing is one sensor, and the cars above need a single one. A mounting bracket is not included.