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Get both upstream and downstream O2 sensors in one shot.

Fits 2004-2006 Nissan Altima and Sentra with the 2.5L engine.

Brand new, 2 sensors total, wiring config is 4 & 5 wire depending on position.

Direct replacement, supersedes 234-5061 and 234-4301.

Unbranded but comes with a solid 5-year warranty.

No UPC, just plug-and-play.

If your check engine light’s on or you're throwing O2 codes, this set clears it up.



4 out of 5