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CAT D379, D398, D399 engine specifications and manuals - amp

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e.g. its power and torque. 

Essential bolt tightening torques are
 main bearing cap bolt torque, 
 connecting rod cap bolt torque 
 and the cylinder head bolt torques.
 


 
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CAT D379, D398, D399 engine specs, manuals and essential bolt torques - amp

 
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CATERPILLAR D379 D398 and D399 Essential Diesel Engine Bolt Tightening Torques

 
CAT D379, D398, D399
Main Bearing Bolts

Step 1 = 200 lb.ft, 270 Nm
Step 2 = +120 degrees

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D379, D398, D399 
engine manuals and specs
 
CAT D379, D398, D399
Connecting Rod Bolts

Step 1 = 40 lb.ft, 55 Nm
Step 2 = +120 degrees

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D379, D398, D399 
engine manuals and specs
 
CAT D379, D398, D399
Cylinder Head Bolts

step 1 - 150 lb.ft, 205 Nm
step 2 - 230 lb.ft, 312 Nm
step 3 - Repeat Step 2

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D379, D398, D399 
engine manuals and specs
 

CATERPILLAR D379 D398 and D399 Diesel Engine Spec Sheets

 
CAT D379 diesel engine spec sheet, 2 pages

CAT D398 diesel engine spec sheet, 2 pages

CAT diesel engine spec sheet, 2 pages

CATERPILLAR D379 D398 and D399 Diesel Engine workshop repair Manuals

 
Caterpillar D379 D398 and D399 Diesel engine PDF Workshop Manual, 434 pages, click to download

CATERPILLAR D379 D398 and D399 Diesel Engine Specs

 
CAT D379, D398, D399
Displacement, arrangement,
bore and stroke

Displacement 
and arrangement

D379
32.2 liter, 1,964 CID 
V8, 4-stroke-cycle diesel  
 
D398
48.3 liter, 2,945 CID 
V12, 4-stroke-cycle diesel 
turbo aftercooled engine
    
D399
64.4 liter, 3,927 CID
V16,  4-stroke-cycle diesel 
turbo aftercooled engine

Same bore and stroke 
for all three 

Bore
6.25 in, 159 mm
  
Stroke
8.0 in, 203 mm

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CAT D379, D398, D399 
engine manuals and specs
 
CAT D379, D398, D399
Dimensions

D379 approx:
length - 139 in, 3534 mm 
(incl heat exchanger)
width - 63 in, 1600 mm
height - 90 in, 2250 mm

D398 approx:
length - 161 in, 4097 mm 
(incl heat exchanger)
width - 63 in, 1600 mm
height - 90 in, 2250 mm

D399 approx:
length - 186 in, 4720 mm 
(incl heat exchanger)
width - 63 in, 1600 mm
height - 90 in, 2250 mm

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CAT D379, D398, D399 
engine manuals and specs
 
CAT 
D379, D398, D399
Power 

D379 
500-625 hp, 
373-466 kW @1225 rpm

D398 - Marine TA
737-938 hp, 
560-700 kW @1225 rpm

D399 - Marine TA
1000-1250 hp, 
746-932 kW @1225 rpm


Weight
engine weight 
dry approx:

D379 - 11775 lb, 5340 kg
D398 - 14825 lb, 6723 kg
D399 - 17660 lb, 8009 kg

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CAT D379, D398, D399 
engine manuals and specs
 

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