Diesel Air-Cooled KD440

Our KD440 was remade with an impenetrable air filter to increase durability, boost engine performance and lengthen service intervals. Couple that with the engine’s cast iron cylinder liner and you’ve got a machine that doesn’t know how to quit.

Exclusive Features

  • New air filtration system increases capacity and lengthens service intervals
  • New sound dampener provide industry-leading noise levels
  • Integrated fuel-injection system and overhead cam design help ensure fewer trips to the shop
  • Cast-iron construction ensures durability and lasting performance.
  • 3-year limited warranty



1 Power (hp) and Torque (ft lbs) specifications for Kohler general purpose engines are rated pursuant to Society of Automotive Engineers (SAE) J1940 based on gross output testing performed according to SAE J1995 without the air cleaner and muffler. Actual engine power and torque are lower and affected by accessories (air cleaner, exhaust, charging, cooling, fuel pump, etc.), application, engine speed, ambient operating conditions (temperature, humidity and altitude) and other factors. This J1940 / J1995 rating provides consistent measurement to customers who may want to control the intake and exhaust features of the engine. For more information, contact Kohler Co. Engine Engineering Department. Kohler Co. reserves the right to change product specifications, designs and standard equipment without notice and without incurring obligation.

2 Inches of H20 @ 3600 RPM WOT

3 J1995 power and torque certified by 3rd Party Witness

Engine Uses

Equipment Types
This engine powers the following equipment

  • Cement Mixer
  • Lawn Mower
  • Rotary Hoe
  • Tractor
  • Farm Machinery
  • Sweeper
  • Mini-car
  • Aerial Platform
  • Welder
  • Refrigerating Groups
  • Generator
  • Asphalt Cutter
  • Vibrating Plate Roller
  • Motor Compresssor
  • Mini Excavator
  • Mini Dumper
  • Dumper

Additional Information (PDF Files)

Owners Manual

Service Manual