If you need to change the spark plugs in your 2nd generation 2016, 2017, 2018, 2019, 2020 and 2021 Mazda CX-9 SUV with the Skyactiv-G turbocharged 2.5L I4 engine, check out the DIY guide for the procedure (with the compatible replacement part numbers) by clicking on the text link or thumbnail image below.
2016-2021 Mazda CX-9 Spark Plugs Replacement Guide
