Subaru Outback Oxygen Sensors
We found 16 eBay listings for Subaru Outback oxygen sensors, covering model years 2001 to 2014.
All Subaru oxygen sensor listings by model
Last checked: . Confirm current price and fitment with the seller.
Compare oxygen sensors options for the Subaru Outback by part number, specification and seller fitment details. Matching listing titles mention 2001–2014; this is seller-described coverage, not confirmed fitment. Check the exact generation, engine and required specification before choosing a listing.
What the listings say: Of the 16 listings for Subaru Outback oxygen sensors checked on 7 November 2026, 11 give model years between 2001 and 2014, most often 2006–2009 (3). Positions named in the titles: upstream (11), downstream (10). Brands named: Denso (5). Part numbers in more than one title: 234-4445. Titles are the sellers’ descriptions, not confirmed fitment: match the part number, model year, generation and engine before you buy.
Found 16 listings for "subaru outback oxygen sensors"
Upstream & Downstream Oxygen O2 Sensor For Subaru Outback 3.0L 2005-2009
A-Premium 2x Upstream & Downstream O2 Oxygen Sensor for Subaru Forester Outback
Oxygen O2 Sensors For 2013-2014 Subaru Outback H4 2.5L Upstream & Downstream NEW
234-9123 Air Fuel Ratio Oxygen Sensor For Subaru Impreza Forester Outback
2x Up&Downstream Oxygen O2 Sensor For Subaru Outback Impreza Forester 03-04 2.5L
Denso 234-9047 Upstream Oxygen sensor For SUBARU OUTBACK 2005-2009 3.0L H6
O2 Oxygen 02 Sensor for 2006-2009 Subaru Outback 2.5L Upstream + Downstream 2pcs
Upstream Oxygen O2 Sensor for Subaru Legacy Outback Forester DENSO 2006-2009
DENSO Downstream 234-4445 For 2006-2012 Subaru Outback 2.5L O2 02 Oxygen Sensor
Upstream Air Fuel Ratio Oxygen Sensor 234-9010 For 2001-2004 Subaru Outback
2Pcs Oxygen O2 Sensor Upstream+Downstream For 2010-12 Subaru Legacy Outback 2.5L
2 Pack Upstream & Downstream O2 Oxygen Sensor For 2006-2009 Subaru Outback 2.5L
2Pcs Up&Downstream Oxygen Sensor For Subaru Outback Impreza Legacy Forester 2.5L
234-9015 Denso O2 Oxygen Sensor UPSTREAM for Subaru Baja Impreza Legacy Outback
Upstream Oxygen Sensor Fit For Subaru Legacy Outback Impreza 2.5L 22690-AA81A
DENSO Downstream 234-4445 For 2006-2012 Subaru Outback 2.5L O2 02 Oxygen Sensor
Questions about these listings
Which model years are named in the listings for Subaru Outback oxygen sensors?
11 listing titles give model years from 2001 to 2014; 2006–2009 appears most often (3 listings). Check your car’s year against the fitment details in each listing.
Which positions are named in the listings for Subaru Outback oxygen sensors?
The titles name upstream (11 listings) and downstream (10). Order for the position on your car, as stated in the title or the seller’s fitment details.
Which part numbers appear in more than one listing for Subaru Outback oxygen sensors?
234-4445 appears in more than one title. Compare the number on your old part with the listing before you buy.
How do I check fitment before buying Subaru Outback oxygen sensors?
Find which sensor has failed. Upstream sensors sit before the catalytic converter and control fuelling; downstream sensors sit after it and monitor the converter. A fault code that names the bank and sensor number identifies the position. Some engines use a wideband (air-fuel ratio) sensor upstream. It is not interchangeable with an ordinary oxygen sensor, so match the type as well as the position.
Check compatibility before buying
These listings were found using Subaru Outback oxygen sensors search terms. A search match does not establish fitment. Compare the part number, vehicle year, generation and engine with the seller's compatibility details. Confirm delivery, returns and the final price on eBay before ordering.
Match the oxygen sensor to its exact position
Reference: NTK guide to oxygen (lambda) sensor types. Use the catalogue’s correct regional application.