KAWASAKIMULE SX 4x4 SE 2017 - Present

　　This model is powered by a 4-valve, air-cooled, 4-stroke, 401cc engine, placing it in the midsize displacement class (400cc - 600cc class). The 8.6:1 compression ratio is 14% lower than the average utility Side by Side. A higher compression ratio is desirable because it means an engine can do the same amount of work with less fuel, leading to increased efficiency and power for a given engine size; high compression ratios are indicative of high performance.

　　Its carbureted fuel delivery system ensures a lower maintenance engine than one with EFI, but this simplicity comes at the cost of lower efficiency and higher emissions.