Cummins KTA38 and KTA50 
Specs, bolt tightening torques and manuals

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Cummins KTA38 and KTA50 specs, bolt torques and manuals

KTA38 and KTA50 essential bolt tightening torques

Main Bearing Bolts
main bearing capscrews
step 1 = 265 Nm, 195 lb.ft
step 2 = 605 Nm, 445 lb.ft
step 3 = loosen
step 4 = 265 Nm, 195 lb.ft
step 5 = 605 Nm, 445 lb.ft

main bearing mounting capscrews
step 1 = 176 Nm, 130 lb.ft
step 2 = 339 Nm, 250 lb.ft
step 3 = loosen
step 4 = 339 Nm, 250 lb.ft
step 5 = + 90°

Connecting Rod Bolts
(Manual Vol 3)
step 1 = 108 Nm, 80 lb.ft
step 2 = 217 Nm, 160 lb.ft
step 3 = 325 Nm, 240 lb.ft
step 4 = loosen
step 5 = 108 Nm, 80 lb.ft
step 6 = 217 Nm, 160 lb.ft
step 7 = 325 Nm, 240 lb.ft
step 8 = 365 Nm, 270 lb.ft

Cylinder head Bolts
Black bolts        
step 1  50 lb.ft, 65 Nm     
step 2  150 lb.ft, 200 Nm 
step 3  250 lb.ft, 340 Nm 
step 4  360 lb.ft, 490 Nm   
step 5  410 lb.ft, 555 Nm  

Silver bolts
step 1  50 lb.ft, 65 Nm  
step 2  120 lb.ft, 160 Nm  
step 3  185 lb.ft, 250 Nm  
step 4  255 lb.ft, 345 Nm


Cummins KTA38 and KTA50 specs and manuals

KT38 advantage spec sheet
Cummins KTA38 & 50 
advantage spec sheet 
4 page - click to download
KTA38 generator spec sheet
Cummins KTA38 
G7 generator spec sheet 
2 page - click to download
KT19 generator spec sheet
Cummins KTA38 
marine spec sheet 
2 page - click to download
KTA38 workshop manual p1
Cummins K38, K50, QSK38, QSK50 
wokshop manual 
854 pages - click to download

KTA50 parts book p1
Cummins KTA50 
parts book 
194 pages - click to download
KTA50 drilling module p1
Cummins KTA50 
drilling module 
4 pages - click to download
KTA50 G3 spec sheet p1
Cummins KTA50 
G3 spec sheet 
2 pages - click to download
KTA50 genset spec sheet p1
Cummins KTA50 
gen set spec sheet 
2 pages - click to download


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