Kohler Diesel Air-Cooled KD15-441

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Our air-cooled diesel engines are engineered with state-of-art air filters to increase durability and lengthen service intervals. Couple all of that with the engine’s cast iron cylinder liners and you’ve got a machine that doesn’t know how to quit.

  • Aluminum crank case, hence lightweight but powerful engine
  • Cast iron liner separable for easy maintenance
  • External spin-on oil filter for easy maintenance
  • Forced lubrication for better engine life
  • Higher power-to-weight ratio which makes the engine lightweight but still powerful
  • Dust-protection for fly-wheel mounted alternator which leads to less maintenance costs


Engine Type

Four-stroke, aluminum cylinder head, automatic extra fuel starting system

Model KD15-441
Power[1] kw (hp) 7(9.4)
Displacement cm3 (in3) 441 (26.9)
Bore mm (in) 86 (3.4)
Stroke mm (in) 76 (3)
Maximum Torque[1] Nm (lb-ft) 21.0 (15.5)
Compression Ratio 20.3:1
Dry Weight kg (lbs) 45 (99.2)
Oil Capacity L (US qt) 1.5 (1.6)
Lubrication Full pressure w/full-flow filter
Dimensions LxWxH mm (in) 413 x 340 x 493.1
(16.3 x 13.9 x 19.4)
Emissions Compliance
  • BHARAT Trem Stage III A
Engine Type Commercial

1 Performances measured according to ISO 14396 without final intake and exhaust line. Actual engine performances may be affected by accessories (intake and exhaust line, charging, cooling fan, etc.), application, ambient operating conditions (temperature, humidity, and altitude) and other factors.