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Here’s a set of two brand new oxygen sensors from Evan-Fischer.

These are the downstream ones—right side—for a bunch of Chevy and GMC models from the mid-2000s.

They’re direct fit, threaded-in style with a 7/8-inch hex.

Four wires, heated, with a 13.19-inch wire length.

OEM numbers like 12590750 and 25024339 cross right over.

They come as a pair, so you get both sensors you need for that side.

There’s a 1-year unlimited-mileage warranty, and they’re returnable within 30 days.



4 out of 5