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Mercedes OM422-423-424 specs, bolt torques, spec sheets, manuals


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Your Diesel Engine Specs

Basic specs are open to everyone and include images, displacement, dimensions and weight, essential bolt tightening torques, the characteristics of the engine like its power and torque.
Essential bolt tightening torques are the main bearing cap bolt torque, the connecting rod cap bolt torque and the cylinder head bolt torques.


Some Popular Engine Specs


OM422-424 bolt torques, specifications and manuals


Useful information for owners and repairers of OM422-424 engines

om422, om423, om424 essential bolt tightening torques

Main Bearing Bolts 
step 1 = 300 Nm
step 2 = + 90-100°

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

Cylinder head Bolts
step 1 = 140 Nm
step 2 = + 90-100°

Mercedes om422, om423 and om424 workshop manual

Dimensions approx: ade multi engine dimensions image

Mercedes OM422, OM423 & OM424 specifications

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

e.g 
OM422LA = ADE422TI

Bore
128.00 mm


Stroke
142.00 mm

Arrangement
OM422
v8 engine
4-stroke cycle
Naturally aspirated

OM422A
v8 engine
4-stroke cycle
Turbocharged

OM422LA
v8 engine
4-stroke cycle
Turbocharged
Intercooled

Arrangement
OM423
v10 engine
4-stroke cycle
Naturally aspirated

OM423A
v10 engine
4-stroke cycle
Turbocharged

OM423LA
v10 engine
4-stroke cycle
Turbocharged
Intercooled

Arrangement
OM424
v12 engine
4-stroke cycle
Naturally aspirated

OM424A
v12 engine
4-stroke cycle
Turbocharged

OM424LA
v12 engine
4-stroke cycle
Turbocharged
Intercooled


Displacement
om422 - 14.6 liter
om423 - 18.3 liter
om424 - 21.9 liter

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

Weight approx:
om422 - 815 kg
om422A - 865 kg
om423 - 965 kg
om423A - 1020 kg
om424 - 1115 kg
om424A - 1165 kg

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

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

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

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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Phone: +27 72 754 4660
email: steve@barringtondieselclub.co.za
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