Dozers

D21A-8

D21A-8


D21A-8

ModelKomatsu 4D94LE-2
TypeWater-cooled, diesel
ApsirationNaturally aspirated
Number of cylinders4
Bore3.70"94 mm
Stroke4.33"110 mm
Piston displacement186 in³3.053 ltr
Gross horsepower @ 2450 rpm43.1 HP32.2 kW
Net flywheel horsepower*
SAE J1349 @ 2450 rpm40 HP29.5 kW
DIN 6270 @ 2450 rpm40 PS29.5 kW
Net maximum torque @ 1300 rpm112 lb ft152 Nm 15.5 kg m
GovernorAll-speed, mechanical
FilterFull-flow
Direct injection fuel system. All-speed mechanical governor. Pump
*net flywheel horsepowerNet flywheel output for standard engine (SAE j1349) including air cleaner, alternator (not charging), water pump, lubricating oil pump, fuel pump, muffler, and fan