Komatsu 4D105-3 series specifications and manuals

Komatsu 4D105-3Main Bearing Bolts
 
step 1 = 90 Nm
step 2 = 137 Nm
step 3 = loosen all
step 4 = 90 Nm
step 5 = 137 Nm
step 6 = 196 Nm

Komatsu 4D105-3Connecting Rod Bolts
 
step 1 = 60 Nm
step 2 = 110 Nm
step 3 = loosen all
step 4 = 60 Nm
step 5 = 110 Nm

Komatsu 4D105-3Cylinder Head Bolts
 
step 1 = 200 Nm
step 2 = 320 Nm
step 3 = 400 Nm

Komatsu 4D105-3Arrangement
 
4 cylinder
4-stroke cycle engine
turbocharged

Komatsu 4D105-3Displacement, bore, stroke and compression ratio
 
Displacement
4.33 liter

Bore
105 mm

Stroke
125 mm

Compression ratio
4D 105 = 17.0
S4D105 = 15.5

Komatsu 4D105-3 Power
 
50-90 hp, 37-67 kW @ 2400 rpm

Komatsu 4D105-3Dimensions and weight
 
Dimensions
approx
length 986 mm
length 775 mm
height 1375 mm (with silencer)

Weight approx
540 kg