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Popular Diesel Engine Specs


OM422, OM423, OM424 Essential Diesel Engine Bolt Tightening Torques

 
OM422, OM423, OM424 
Mercedes
Main Bearing Bolts

step 1 = 300 Nm
step 2 = + 90-100 degrees

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engine manuals and specs
 
OM422, OM423, OM424 
Mercedes
Connecting Rod Bolts

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

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engine manuals and specs
 
OM422, OM423, OM424 
Mercedes
Cylinder head Bolts

step 1 = 140 Nm
step 2 = + 90-100 degrees

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engine manuals and specs
 

Mercedes OM422, OM423 and OM424 Diesel Engine workshop repair Manuals

Mercedes
Engine Designations
German - English

A = Turbocharger = T
L = Intercooler = I
OM = Diesel engine = ADE 

e.g 
OM422LA = ADE422TI


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ADE Engine and
Mercedes OM Engine 
Specs, manuals, bolt torques
 

OM422, OM423, OM424 Diesel Engine Specs

 
Mercedes
OM422, OM422A, ADE422LA 
Engine Arrangements

OM422
Engine Arrangement
v8 engine
4-stroke cycle
Naturally aspirated

OM422A
Engine Arrangement
v8 engine
4-stroke cycle
Turbocharged

OM422LA
Engine Arrangement
v8 engine
4-stroke cycle
Turbocharged
Intercooled


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OM422, OM423, OM424 Engine 
Specs, manuals, bolt torques
 
Mercedes
OM423, OM423A, ADE423LA
Engine Arrangements

OM423 
Engine Arrangement
v10 engine
4-stroke cycle
Naturally aspirated

OM423A 
Engine Arrangement
v10 engine
4-stroke cycle
Turbocharged

OM423LA 
Engine Arrangement
v10 engine
4-stroke cycle
Turbocharged
Intercooled


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OM422, OM423, OM424 Engine 
Specs, manuals, bolt torques
 
Mercedes
OM424, OM424A, OM424LA
Engine Arrangements

OM424 
Engine Arrangement
v12 engine
4-stroke cycle
Naturally aspirated

OM424A 
Engine Arrangement
v12 engine
4-stroke cycle
Turbocharged

OM424LA 
Engine Arrangement
v12 engine
4-stroke cycle
Turbocharged
Intercooled


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OM422, OM423, OM424 Engine 
Specs, manuals, bolt torques
 

Mercedes
OM424, OM424A, OM424LA
Engine, Displacement, Bore, Stroke, 
Compression Ratio

Displacement
ade422 - 14.6 liter
ade423 - 18.3 liter
ade424 - 21.9 liter

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

Bore
128.00 mm

Stroke
142.00 mm


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OM422, OM423, OM424 Engine 
Specs, manuals, bolt torques
 
Mercedes
OM424, OM424A, OM424LA
Engine Power and Torque

Power 
OM422 - 202 kW, 275 hp @ 2300 rpm
OM422A - 243 kW, 326 hp @ 2300 rpm
OM423 - 256 kW, 343 hp @ 2300 rpm
OM423A - 300 kW, 402 hp @ 2300 rpm
OM424 - 289 kW, 388 hp @ 2300 rpm
OM424A - 412 kW, 552 hp @ 2300 rpm

Torque 
OM422 - 1022 Nm @ 1200 rpm
OM422A - 1402 Nm, 1200 lb.ft @ 1200 rpm
OM423 - 1278 Nm, 943 lb.ft @ 1200 rpm
OM423A - 1687 Nm, 1244 lb.ft @ 1200 rpm
OM424 - 1388 Nm, 1024 lb.ft @ 1200 rpm
OM424A - 2236 Nm, 1649 lb.ft @ 1200 rpm


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OM422, OM423, OM424 Engine 
Specs, manuals, bolt torques
 
Mercedes
OM424, OM424A, OM424LA
Engine Weight and Dimensions

Weight approx:
OM422 - 815 kg
OM422A - 865 kg
OM423 - 965 kg
OM423A - 1020 kg
OM424 - 1115 kg
OM424A - 1165 kg


Click for:
OM422, OM423, OM424 Engine 
Specs, manuals, bolt torques
 

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

e.g 
OM422LA = ADE422TI


Click for:
ADE Engine and
Mercedes OM Engine 
Specs, manuals, bolt torques
 
Dimensions approx: ade multi engine dimensions image


Page Revision #25.2RsC 05-18