Chevrolet Blazer Oxygen Sensors
We found 17 eBay listings for Chevrolet Blazer oxygen sensors, covering model years 1992 to 2005.
All Chevrolet oxygen sensor listings by model
Last checked: . Confirm current price and fitment with the seller.
Compare oxygen sensors options for the Chevrolet Blazer by part number, specification and seller fitment details. Matching listing titles mention 1992–2005; 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 17 listings for Chevrolet Blazer oxygen sensors checked on 6 November 2026, 12 give model years between 1992 and 2005. Positions named in the titles: downstream (10), upstream (9). Part numbers in more than one title: 234-4012, 234-4650. Titles are the sellers’ descriptions, not confirmed fitment: match the part number, model year, generation and engine before you buy.
Found 17 listings for "chevrolet blazer oxygen sensors"
✅ 3 Oxygen Sensor 02 O2 For Chevy Blazer S10 GMC Jimmy Bravada 4.3L 234-4012
2001 2002 CHEVROLET BLAZER OXYGEN SENSORS 3 PIECES
3X OEM Upstream & Downstream Oxygen O2 Sensor For Chevy Blazer S10 4.3L 234-4650
Fits 1992-1995 Chevrolet Blazer S10 GMC Jimmy 4.3L Upstream Oxygen Sensor O2 02
Oxygen Sensor Fits 1994 Chevrolet S10 Blazer 4.3L Blazer 6.5L Cutlass 234-4012
3pcs Oxygen Sensor For 2002-2005 Chevrolet Blazer V6 4.3L Upstream+Downstream
3Pcs Up&Downstream Oxygen Sensor For Chevrolet Blazer S10 GMC Jimmy Sonoma 4.3L
2X Upstream Downstream O2 Oxygen Sensor For 1994 Chevrolet Blazer 5.7L 6.5L
Oxygen O2 02 Sensor For 96-2001 Chevrolet S10 Blazer 4.3L Upstream or Downstream
3X OEM Up & Downstream Oxygen O2 Sensors For Chevy Blazer S10 GMC Jimmy 234-4012
Upstream Oxygen Sensor O2 02 for 1992-1994 Chevrolet Blazer 5.7L C1500 4.3L
2003 2004 2005 Chevy Blazer Upstream Oxygen O2 Sensor *DENSO OEM
Set of 3 Oxygen Sensors Fit For 2003-2005 Chevrolet Blazer GMC Jimmy 4.3L V6 USA
For Chevrolet Blazer 4.3L V6 2003 2004 2005 3pcs Up+Downstream Oxygen Sensors US
2pcs Upstream Downstream O2 02 Oxygen Sensor for 2003-2005 Chevrolet Blazer 4.3L
Up+Downstream Oxygen Sensors For Chevrolet Blazer 4.3L V6 2003 2004 2005 US 3pcs
3X OEM Upstream & Downstream Oxygen O2 Sensor For Chevy Blazer S10 4.3L 234-4650
Questions about these listings
Which model years are named in the listings for Chevrolet Blazer oxygen sensors?
12 listing titles give model years from 1992 to 2005. Check your car’s year against the fitment details in each listing.
Which positions are named in the listings for Chevrolet Blazer oxygen sensors?
The titles name downstream (10 listings) and upstream (9). 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 Chevrolet Blazer oxygen sensors?
234-4012 and 234-4650 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 Chevrolet Blazer 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 Chevrolet Blazer 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.