KAWASAKIMULE PRO-DX DIESEL 2017 - Present

　　While the diesel-powered Mule Pro models look identical to their gas-powered brothers from the outside, the engines tell a different story. Powering the Mule Pro-DX and Pro-DXT is a 993cc inline three-cylinder Yanmar diesel engine. Kawasaki had to replace its old diesel powerplant in order to meet EPA Tier 4 requirements, which the Yanmar mill does.

　　This engine produces 38 lb-ft of peak torque at just 2400 rpm. Compared to the gas engine in the Mule Pro FX and Pro-FXT, the Yanmar mill is more robust and has a lower cost of ownership, as it is 10-20% more fuel efficient.