Mazda CX-9 Engine Specifications

The 2023 Mazda CX-9 is offered with 2.5L–3.7L engines in 4 and 6-cylinder form, per EPA fuel-economy records.

Latest model year (2023):

The Mazda CX-9 is available with 4 2.5L and Automatic (S6) (4-Wheel Drive).

Verifiedfueleconomy.gov · Verified August 9, 2026

Mazda CX-9 Engine Specs — All Years

YearTrimCylindersDispl.TransmissionDriveFuel TypeVehicle Class
2023Auto (S6), 4 cyl, 2.5 L42.5LAutomatic (S6)4-Wheel DriveRegular GasolineSmall Sport Utility Vehicle 4WD
2022Auto (S6), 4 cyl, 2.5 L42.5LAutomatic (S6)4-Wheel DriveRegular GasolineSmall Sport Utility Vehicle 4WD
2021Config 1 of 2Auto (S6), 4 cyl, 2.5 L42.5LAutomatic (S6)Front-Wheel DriveRegular GasolineSmall Sport Utility Vehicle 2WD
2021Config 2 of 2Auto (S6), 4 cyl, 2.5 L42.5LAutomatic (S6)4-Wheel DriveRegular GasolineSmall Sport Utility Vehicle 4WD
2020Config 1 of 2Auto (S6), 4 cyl, 2.5 L42.5LAutomatic (S6)Front-Wheel DriveRegular GasolineSmall Sport Utility Vehicle 2WD
2020Config 2 of 2Auto (S6), 4 cyl, 2.5 L42.5LAutomatic (S6)4-Wheel DriveRegular GasolineSmall Sport Utility Vehicle 4WD
2019Config 1 of 2Auto (S6), 4 cyl, 2.5 L42.5LAutomatic (S6)Front-Wheel DriveRegular GasolineSmall Sport Utility Vehicle 2WD
2019Config 2 of 2Auto (S6), 4 cyl, 2.5 L42.5LAutomatic (S6)4-Wheel DriveRegular GasolineSmall Sport Utility Vehicle 4WD
2018Config 1 of 2Auto (S6), 4 cyl, 2.5 L42.5LAutomatic (S6)Front-Wheel DriveRegular GasolineSmall Sport Utility Vehicle 2WD
2018Config 2 of 2Auto (S6), 4 cyl, 2.5 L42.5LAutomatic (S6)4-Wheel DriveRegular GasolineSmall Sport Utility Vehicle 4WD
2017Config 1 of 2Auto (S6), 4 cyl, 2.5 L42.5LAutomatic (S6)Front-Wheel DriveRegular GasolineSmall Sport Utility Vehicle 2WD
2017Config 2 of 2Auto (S6), 4 cyl, 2.5 L42.5LAutomatic (S6)4-Wheel DriveRegular GasolineSmall Sport Utility Vehicle 4WD
2016Config 1 of 2Auto (S6), 4 cyl, 2.5 L42.5LAutomatic (S6)Front-Wheel DriveRegular GasolineSmall Sport Utility Vehicle 2WD
2016Config 2 of 2Auto (S6), 4 cyl, 2.5 L42.5LAutomatic (S6)4-Wheel DriveRegular GasolineSmall Sport Utility Vehicle 4WD
2015Config 1 of 2Auto (S6), 6 cyl, 3.7 L63.7LAutomatic (S6)Front-Wheel DriveRegular GasolineSmall Sport Utility Vehicle 2WD
2015Config 2 of 2Auto (S6), 6 cyl, 3.7 L63.7LAutomatic (S6)4-Wheel DriveRegular GasolineSmall Sport Utility Vehicle 4WD

Data sourced from fueleconomy.gov (U.S. Department of Energy). MPG figures are EPA-tested. Fuel costs are estimates based on average fuel prices and 15,000 miles/year.

Mazda CX-9 data analysis

How Mazda CX-9 engine displacement varies

Across 16 configurations recorded for the 2015 through 2023 Mazda CX-9, engine displacement runs from 2.5 litres to 3.7 litres. The strongest figure belongs to the 2023 Mazda CX-9 (SIDI) at 2.5 litres, and the weakest to the 2015 car (Auto (S6), 6 cyl, 3.7 L) at 3.7 litres — a spread of 32%. A gap that wide means the model year and configuration you buy matter more than the nameplate does: quoting a single number for the Mazda CX-9 would be misleading.

What changed for 2023

Average engine displacement for the 2023 Mazda CX-9 is 2.5 litres, against 2.5 litres for the 2022 car — it held flat. A carry-over year like this usually means no powertrain or structural change, so an older example is the cheaper way into the same specification.

How to read this Mazda CX-9 data

This page lists every 2015 through 2023 Mazda CX-9 record we hold for this measurement — 16 rows in total, one per configuration and model year rather than a single headline figure. Figures are published as the source agency records them: we do not round, average or interpolate missing years, and a year that is absent from the table is a year with no published measurement rather than a zero. Where a manufacturer offered several drivetrains or body styles in the same year, each appears on its own row, because those variants rarely share the same numbers.

Configurations behind these Mazda CX-9 numbers

The 2015 through 2023 Mazda CX-9 entries here cover the variants SIDI and Auto (S6), 6 cyl, 3.7 L. 2021 is the busiest model year in the record with 2 separate measured configurations, which is why a single quoted engine displacement figure for that year is rarely the one that matches the car in front of you. Match the row to the exact drivetrain, body style and engine on the window sticker or VIN before relying on the number, and use the comparison links below to see how those same configurations line up against rival models.

Where these Mazda CX-9 figures come from

Every value on this page is loaded from federal open data — EPA fuel economy submissions, NHTSA vehicle and crash-test records, and manufacturer specification filings — rather than dealer listings or copied editorial content. The Mazda CX-9 record refreshes as the agencies publish, which typically means new model-year rows appear in the autumn and crash-test results follow through the model year as vehicles are tested. Because certification data is filed per configuration, treat any single headline number for this vehicle with caution: the figure that applies to a specific car depends on its engine, drivetrain, body style and model year, all of which are listed separately above. If a number here disagrees with a brochure, the brochure is usually quoting the best available configuration rather than the one being sold.

Frequently Asked Questions About CX-9 Engine Specs

What engine does the Mazda CX-9 have?

The Mazda CX-9 is available with 4 cylinder engines ranging up to 2.5L. Transmission and drivetrain options vary by trim. See the full table above.

Is the Mazda CX-9 available with all-wheel drive?

Check the drive column in the table above to see available drivetrain configurations.

View full Mazda CX-9 specs

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