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Mercedes OM444 engine specifications and manuals

 
Diesel Engine Specs and manuals
Diesel Engine manuals and specifications at Barrington Diesel Club
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Popular Diesel Engine Specs




OM444 Essential Diesel Engine Bolt Tightening Torques

 
OM444 Mercedes
Main Bearing Cap Screws

Center 156 mm max 
step 1 = 100 Nm
step 2 = 200 Nm
step 3 = 330 Nm
step 4 = + 90-100 degrees

Main Bearing Cap Screws - Lateral
step 1 = 80 Nm

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 specs and manuals
 
OM444 Mercedes
Connecting Rod Bolts

step 1 = 100 Nm
step 2 = + 90-100 degrees

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 specs and manuals
 
OM444 Mercedes
Cylinder Head Bolts

step 1 = 10 Nm
step 2 = 50 Nm 
step 3 = 100 Nm
step 4 = 140-150 Nm
step 5 = 180-190 Nm
step 6 = + 90-100 degrees

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 specs and manuals
 

OM444 Diesel Engine workshop repair Manuals

 
MTU 183 series, om440 off-highway workshop manual p1
MTU 183 series 
om440 off-highway workshop and maintenance manual 
596 pages

MTU 183 series, om440 off-highway specifications manual p1
MTU 183 series 
om440 off-highway specifications manual 
66 pages

mercedes om444 spec sheet p1
Mercedes om444 engine Spec Sheet, 4 pages, Click to download

ADE om442, om443 & om444 performance curves collection p1
ADE/Mercedes om442, om443 & om444 engine performance curves collection 
9 pages, Click to download

Mercedes
Designations
German - English
A = Turbocharger = T
L = Intercooler = I
OM = Diesel engine = ADE

example:
OM366 = ADE366N
OM366A = ADE366T
OM366LA = ADE366TI
OM442LA = ADE442TI

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 specs and manuals
 

OM444 Diesel Engine Specs

 
Mercedes OM444 engine,
Displacement, Bore, Stroke, 
Compression Ratio, Weight

Displacement
om444 - 22.618 liter

Bore
ADE 
Naturally aspirated = 130 mm

Other
Turbo models = 128.00 mm

Stroke
142.00 mm

Compression ratio
Naturally asprirted = 16.9:1
Turbocharged = 16.25:1

Weight
approx
om444 - 1115 kg
om444A - 1165 kg
om444LA - 1220 kg
 
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OM444 Mercedes
Arrangement

om444
v12 engine
4-stroke cycle
Naturally aspirated

om444A
v12 engine
4-stroke cycle
Turbocharged

om444LA
v12 engine
4-stroke cycle
Turbocharged
Intercooled
 
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 specs and manuals
 
OM444 Mercedes
Power and torque

Power
om444 - 320 kW @ 2100 rpm
om444A - 390 kW @ 2100 rpm
om444LA - 480 kW @ 2100 rpm

Torque 
om444 - 1650 Nm @ 1200 rpm
om444A - 2400 Nm @ 1200 rpm
om444LA - 2650 Nm @ 1200 rpm

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 specs and manuals
 



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