FOR SALE: One good, used, original equipment oxygen sensor salvaged from a 2010 Mazda 3 equipped with a 2.0 liter four cylinder engine. This unit is guaranteed to be serviceable and comes with a thirty-day warranty. Given the supply chain issues that are currently being experienced, delivery, shipping and/or pick-up can be made, often with same-day results, once delivery and/or shipping fees are factored. Also, should installation be needed, that can be accomplished, too, again often with same-day results. See the accompanying photographs for additional visual clues to help with any decision.