That Engine You’ve Been Waiting For.
It’s Here. 

Say hello to the revolutionary KOHLER® KDI Diesel engine. A Tier 4 Final force of nature that comes loaded with four valves, high pressure injection, and a turbocharger and up to 368 lb.-ft. of torque. Make no mistake, it was born to take on the jobs other engines can’t.

ULTRA-COMPACT, NO DPF

  • Better fit, no heat issues, low cost of ownership, no DPF (Diesel Particulate Filter)  maintenance

LOW OPERATING COSTS

  • DPFs burn fuel to remove accumulated particulate. NO DPF means no wasted fuel or DPF maintenance

BUILT TO LAST

  • Heavy-duty construction for the most demanding applications

MAXIMUM POWER DENSITY

  • Delivers up to 29.7 kW/L and 134hp

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Our Most Powerful Engine Ever. 

The KDI3404 is the strongest engine we make — and one of the most compact in its range. This state-of-the-art powerhouse features a 4-valve head, turbocharger, high pressure common rail, no DPF and diesel oxidation catalyst (available at less than 56kW, add DOC/SCR for over 56kW).