Toyota 4Runner Oxygen Sensors
We found 20 eBay listings for Toyota 4Runner oxygen sensors, covering model years 1996 to 2010.
All Toyota oxygen sensor listings by model
Last checked: . Confirm current price and fitment with the seller.
Compare oxygen sensors options for the Toyota 4Runner by part number, specification and seller fitment details. Matching listing titles mention 1996–2010; 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 20 listings for Toyota 4Runner oxygen sensors checked on 2 November 2026, 12 give model years between 1996 and 2010, most often 2003–2004 (4). Positions named in the titles: downstream (11), upstream (11). Brands named: Denso (8). Part numbers in more than one title: 234-4261, 234-9051. Titles are the sellers’ descriptions, not confirmed fitment: match the part number, model year, generation and engine before you buy.
Found 20 listings for "toyota 4runner oxygen sensors"
1X Up Downstream Oxygen Sensor For Lexus Toyota RAV4 4Runner Camry Vibe 234-4261
DENSO 2349002 Oxygen Sensor For TOYOTA 4RUNNER 2001-2002 3.4L-V6 Upstream
234-9051 O2 Oxygen Sensor For DENSO Toyota 4Runner 2005-2007 4.0L V6 Upstream|
4pcs Up&Downstream Oxygen sensor For Toyota 4Runner 2005 2006 07 08 09 4.0L/4.7L
Set of 4 Upstream & Downstream Oxygen O2 Sensor For Toyota 4Runner Lexus GX470
Denso 234-9047 Upstream Oxygen sensor For TOYOTA 4RUNNER 2003-2004 4.0L V6
O2 Oxygen Sensor Upstream & Downstream For 2010 Toyota 4Runner 2.7L 234-4261
2 x O2 Oxygen Sensor Upstream&Downstream For Toyota 4Runner Pickup Tundra Tacoma
89465-0C180 O2 Oxygen Sensor for Toyota Avalon Tundra 4Runner Lexus ES350 Tacoma
O2 Oxygen Sensors For 1999-2002 Toyota 4Runner 2.7L-L4 3.4L-V6 Tacoma 2.4L-L4
Denso O2 Oxygen Sensor DOWNSTREAM Right OEM for 2005-2006 Toyota 4RUNNER 4.0L-V6
NEW Upstream + Down for 2003-2004 Toyota 4Runner 4.7L Oxygen Sensors
4PCS Up Downstream Oxygen Sensors For Toyota 4Runner Lexus GX470 Land Cruiser EH
Set of 4 Upstream+Downstream Oxygen Sensor For Toyota 4Runner 4.0L V6 2003-2004
4x Upstream & Downstream Oxygen O2 Sensors For Toyota 4Runner 4.0L V6 2003-2004
2PCS Upstream Oxygen Sensors 89467-30010 for Toyota 4Runner Tundra Tacoma Lexus
(QTY 2) Denso 234-9051 Oxygen O2 Sensor for 1996-2007 Toyota 4Runner
Denso 234-4162 Oxygen Sensor For Toyota 4Runner Sequoia T100 Tacoma Tundra
Denso Upstream & Downstream Oxygen Sensors Kit For Toyota 4Runner Tacoma 3.4 V6
DENSO 234-4261 Downstream Oxygen sensor For Toyota 4Runner 2001-2002 3.4L V6
Questions about these listings
Which model years are named in the listings for Toyota 4Runner oxygen sensors?
12 listing titles give model years from 1996 to 2010; 2003–2004 appears most often (4 listings). Check your car’s year against the fitment details in each listing.
Which positions are named in the listings for Toyota 4Runner oxygen sensors?
The titles name downstream (11 listings) and upstream (11). 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 Toyota 4Runner oxygen sensors?
234-4261 and 234-9051 appear 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 Toyota 4Runner 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 Toyota 4Runner 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.