Lexus RX Oxygen Sensors
We found 20 eBay listings for Lexus RX oxygen sensors, covering model years 1999 to 2015.
All Lexus oxygen sensor listings by model
Last checked: . Confirm current price and fitment with the seller.
Compare oxygen sensors options for the Lexus RX by part number, specification and seller fitment details. Matching listing titles mention 1999–2015; 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 Lexus RX oxygen sensors checked on 8 November 2026, 15 give model years between 1999 and 2015, most often 2004–2006 (5). Positions named in the titles: downstream (14), right (7), upstream (5). Brands named: Denso (13). Part numbers in more than one title: 234-4509, 234-9009. Titles are the sellers’ descriptions, not confirmed fitment: match the part number, model year, generation and engine before you buy.
Found 20 listings for "lexus rx oxygen sensors"
234-4215 Denso O2 Oxygen Sensor DOWNSTREAM New for Toyota Highlander Lexus RX300
DENSO 234-4509 Oxygen Sensor For LEXUS RX350 2007-2015 3.5L V6 Downstream Right
DENSO 234-9042 Upstream Oxygen sensor For Lexus RX330 2004-2006 3.3L V6
DENSO 234-4509 Downstream Right Oxygen sensor For LEXUS RX350 2007-2015 3.5L V6
DENSO 234-4509 Downstream Right Oxygen sensor For LEXUS RX350 2007-2015 3.5L V6
234-4509 Denso Down Oxygen O2 Sensor For Toyota Highlander Lexus RX330 RX350
4X Oxygen O2 Sensors Fit Lexus RX330 2004-2006 Toyota Highlander 3.3L 2004-2007
234-9009 GENUINE OEM Toyota Lexus Highlander RX300 Air Fuel Ratio Sensor V6
Denso 234-9009 Oxygen O2 Sensor for LEXUS RX300 1999-2003 3.0L V6 Upstream
4PCS Upstream+Downstream Oxygen Sensors for Lexus RX400H 3.3L V6 2006 2007 2008
DENSO 234-4509 Downstream Right Oxygen sensor For LEXUS RX330 2004-2006 3.3L V6
OEM 234-9049 Upstream Left Oxygen sensor For Lexus RX450H 2010 3.5L V6 hybrid
DENSO 234-4509 Oxygen sensor For LEXUS RX330 2004-2006 3.3L V6 Downstream Right
4PCS Oxygen O2 Sensors For 2008-2012 Lexus RX350 3.5L V6 Upstream & Downstream
OEM Downstream O2 Oxygen Sensor for Toyota Highlander Lexus RX330 RX350 234-4509
Downstream Oxygen O2 Sensor For 2004 2005 2006 Lexus RX330 3.3L 89465-48170
Downstream Left DENSO 234-4168 Oxygen Sensor For LEXUS*RX330 2005 3.3L
Denso 1Pc Oxygen O2 Sensor Downstream 234-4509 for Toyota Highlander Lexus RX330
234-4509 Downstream Right Oxygen sensor For DENSO LEXUS RX350 2007-2015 3.5L V6
Oxygen sensor 234-4509 For DENSO LEXUS RX330 2004-2006 3.3L V6 Downstream Right
Questions about these listings
Which model years are named in the listings for Lexus RX oxygen sensors?
15 listing titles give model years from 1999 to 2015; 2004–2006 appears most often (5 listings). Check your car’s year against the fitment details in each listing.
Which positions are named in the listings for Lexus RX oxygen sensors?
The titles name downstream (14 listings), right (7) and upstream (5). 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 Lexus RX oxygen sensors?
234-4509 and 234-9009 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 Lexus RX 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 Lexus RX 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.