Komatsu 12v40 Diesel Engine specifications and manuals

Inter Club Navigation
home image Home Page 
   Contact Us  
  engine outline Engine List    Technical   video indicatorVideos  logo ball Engine Components 

Popular Diesel Engine Specs

Workshop manual, specs and bolt torques for Komatsu 12v40 diesel engines

Komatsu 12v140 engine Diesel Engine Bolt Tightening Torques

Main Bearing Bolts 
Step1 = 290 Nm
Step2 = 570 Nm
Step3 = +90 degrees

Connecting Rod Bolts
Step1 = 70 Nm
Step2 = recheck 70 Nm
Step3 = + 90°

Cylinder head Bolts 
bolts 1-6:
Step1 = 150 Nm
Step2 = 220 Nm
Step3 = + 90°

bolt No. 7:
Step1 = 70 Nm

Komatsu 12v40 Diesel Engine Specs

Arrangement
12v engine, 
turbocharged

Displacement
30.5 liter

Bore
140.0 mm	
 
Stroke
165.0 mm

Power
574-603 kW @ 2000 rpm

Torque
3350-3730 Nm @ 1400 rpm

Dimensions
approx dimensions
varies according to machine:

length = 1715-2000 mm
width  = 1450-1515 mm
height = 1592 mm

Weight
approx:
3200 kg

Komatsu 12v40 engine - Diesel engine workshop repair Manuals




Barrington Diesel Club
Phone: +27 72 754 4660
email: steve@barringtondieselclub.co.za
© copyright Steve Barrington 2016

Page Revision #8.2RsC 10-17

Positive SSL