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Popular Diesel Engine Specs
OM444 image
image OM444 - click to expand

Workshop manual, specs and bolt torques for OM444 engines

OM444 Essential Diesel Engine Bolt Tightening Torques

Main Bearing Cap Screws - Center
156 mm max 
step 1 = 100 Nm
step 2 = 200 Nm
step 3 = 330 Nm
step 4 = + 90-100°

Main Bearing Cap Screws - Lateral
step 1 = 80 Nm

Connecting Rod Bolts
step 1 = 100 Nm
step 2 = + 90-100°

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°


OM442, OM443 & OM444 Diesel Engine Specs

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

e.g 
om442LA = ADE442TI

Bore
ADE 
Naturally aspirated = 130 mm

Other
Turbo models = 128.00 mm

Stroke
142.00 mm

Arrangement
om442
v8 engine
4-stroke cycle
Naturally aspirated

om442A
v8 engine
4-stroke cycle
Turbocharged

om442LA
v8 engine
4-stroke cycle
Turbocharged
Intercooled

Arrangement
om443
v10 engine
4-stroke cycle
Naturally aspirated

om443A
v10 engine
4-stroke cycle
Turbocharged

om443LA
v10 engine
4-stroke cycle
Turbocharged
Intercooled

Arrangement
om444
v12 engine
4-stroke cycle
Naturally aspirated

om444A
v12 engine
4-stroke cycle
Turbocharged

om444LA
v12 engine
4-stroke cycle
Turbocharged
Intercooled


Displacement
om442 - 15.080 liter
om443 - 18.267 liter
om444 - 22.618 liter

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

Weight approx:
om442 - 815 kg
om442A - 865 kg
om443 - 965 kg
om443A - 1020 kg
om444 - 1115 kg
om444A - 1165 kg
om444LA - 1220 kg

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

Power 
om442 - 213 kW @ 2100 rpm
om442A - 260 kW @ 2100 rpm
om442LA - 320 kW @ 2100 rpm

om443 - 266 kW @ 2100 rpm
om443A - 325 kW @ 2100 rpm
om443LA - 400 kW @ 2100 rpm

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

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

Torque 
om442 - 1100 Nm @ 1200 rpm
om442A - 1600 Nm @ 1200 rpm
om442LA - 1765 Nm @ 1200 rpm

om443 - 1375 Nm @ 1200 rpm
om443A - 2000 Nm @ 1200 rpm
om443LA - 2200 Nm @ 1200 rpm

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


OM444 Diesel Engine workshop repair Manuals



Barrington Diesel Club
Phone: +27 72 754 4660
email: steve@barringtondieselclub.co.za
© copyright Steve Barrington 2016

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