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OM904 OM906 engine specifications and manuals - amp

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dimensions and weight, 
essential bolt tightening torques, 

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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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Workshop manuals, specs and bolt torques for OM904 - OM906 engines - amp

 
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OM904 and OM906 Essential Diesel Engine Bolt Tightening Torques

 
OM904, OM906 Mercedes
Main Bearing Bolts 

step 1 = 30 Nm
step 2 = 80 Nm
step 3 = 155 Nm
step 4 = + 90 degrees

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engine manuals and specs
 
OM904, OM906 Mercedes
Connecting Rod Bolts

step 1 = 10 Nm
step 1 = 45 Nm
step 3 = + 90 degrees

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engine manuals and specs
 
OM904, OM906 Mercedes
Cylinder Head Bolts

step 1 = 20 Nm
step 2 = 70 Nm
step 3 = 170 Nm
step 4 = 280 Nm
step 5 = + 90 degrees
step 6 = + 90 degrees

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engine manuals and specs
 

OM904 and OM906 Diesel Engine workshop repair Manuals

 
Mercedes om904 thru om926 
operating instructions 
112 pages, Click to download
om457 om501 om502 om900 
maintenance and repair manual 
174 pages, Click to download
Mercedes om904la, om906la 
workshop manual 
373 pages, Click to download

OM904 and OM906 Diesel Engine Specs

 
OM904 and OM906 Mercedes
Arrangement and compression ratio

Arrangement
OM904LA
in-line 4 cylinder engine, 
4-stroke cycle
turbocharged
intercooled

Arrangement
OM906LA
in-line 6 cylinder engine, 
4-stroke cycle
turbocharged
intercooled

Compression ratio
18.0:1

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OM904 and OM906 Mercedes
Displacement, bore, stroke

Displacement
OM904
4.25 liter, 259 CID

OM906
6.4 liter, 390 CID

Bore
102 mm, 4.02 in

Stroke
130 mm, 5.12 in

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engine manuals and specs
 
OM904 and OM906 Mercedes
Power and torque

Power 
OM904LA
75-130 kW, @2200 rpm

OM906LA
170-205 kW, @2200 rpm

Torque 
OM904LA
400-670 Nm, @1200-1600 rpm

OM906LA
810-1100 Nm, @1200-1600 rpm

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engine manuals and specs
 
OM904 and OM906 Mercedes
Dimensions and Weight

Dimensions approx
OM904LA
length = 830 mm
width = 645 mm
height = 925 mm

OM906LA
length = 1078 mm
width = 645 mm
height = 940 mm

Weight approx
OM904LA
365 kg, 803 lb

OM906LA
530 kg, 1166 lb

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