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



Popular Diesel Engine Specs


Cummins ISB and QSB Essential Diesel Engine Bolt Tightening Torques

 
Cummins ISB QSB
Main Bearing capscrews

Used bolts
Step 1 = 50 Nm, 37 lb.ft
Step 2 = 80 Nm, 60 lb.ft
Step 3 = + 90 degrees



Click for Cummins ISB and QSB 
engine manuals and specs
 
Cummins ISB QSB
Main Bearing capscrews

New bolts
Step 1 = 120 Nm, 90 lb.ft
Step 2 = loosen all
Step 3 = 60 Nm, 45 lb.ft
Step 4 = 85 Nm, 63 lb.ft
Step 5 = + 120 degrees

Click for Cummins ISB and QSB 
engine manuals and specs
 

Cummins ISB QSB
Connecting Rod Bolts

step 1 = 30 Nm, 22 lb.ft
step 2 = 60 Nm, 44 lb.ft
step 3 = + 60 degrees

Click for Cummins ISB and QSB 
engine manuals and specs
 
Cummins ISB QSB
Cylinder Head capscrews

step 1 = 90 Nm, 66 lb.ft
step 2 = repeat above
step 3 = + 90 degrees

Click for Cummins ISB and QSB 
engine manuals and specs
 

Cummins ISB and QSB Diesel Engine Specs

 
Cummins ISB and QSB 
Displacement, bore and stroke

4-cylinder engines
Displacement 3.9 liter, 238 CID 
Bore 102 mm, 4.02 in
Stroke 120 mm, 4.72 in

Displacement 4.5 liter, 275 CID
Bore 107 mm, 4.21 in
Stroke 124 mm, 4.88 in

6-cylinder engines
Displacement 5.9 liter, 360 CID
Bore 102 mm, 4.02 in
Stroke 120 mm, 4.72 in

Displacement 6.7 liter, 409 CID
Bore 107 mm, 4.21 in
Stroke 124 mm, 4.88 in



Click for Cummins ISB and QSB 
engine manuals and specs
 
Cummins ISB and QSB
Power Ratings

4 CYL
Power from:
 140 to 185 hp
 104 to 138 kW @ 2500 rpm

Torque from:
 550 to 750 Nm 
 406 to 553 lb.ft
 @ 1200 to 1600 rpm

6 CYL
Power from:
 205 to 300 hp
 153 to 224 kW @ 2500 rpm

Torque from:
 750 to 1150 Nm 
 553 to 848 lb.ft
 @ 1200 to 1700 rpm
 
Click for Cummins ISB and QSB 
engine manuals and specs
 
Cummins ISB and QSB
Dimensions and weight

5.9 liter approx Dimensions:
length 1036 mm, 41 in
width 836 mm, 33 in
height 880 mm, 35 in

5.9 liter approx Weight:
612 kg, 1350 lb

6.7 liter approx Dimensions:
length 1097 mm, 43 in
width 910 mm, 36 in
height 857 mm, 34 in

6.7 liter approx Weight:
659 kg, 1450 lb




Click for Cummins 
ISB and QSB 
engine manuals and specs
 

Cummins ISB and QSB Diesel Engine Spec Sheets

 

Cummins ISB and QSB Diesel Engine workshop repair Manuals

 



Page Revision #6.6RsC 08-18