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Popular Diesel Engine Specs

Workshop manual, specs and bolt torques for OM904-OM906 engines

OM904 and OM906 Essential Diesel Engine Bolt Tightening Torques

Main Bearing Bolts 
step 1 = 30 Nm
step 2 = 80 Nm
step 3 = 155 Nm
step 4 = + 90°

Connecting Rod Bolts
step 1 = 10 Nm
step 1 = 45 Nm
step 3 = + 90°

Cylinder head Bolts
step 1 = 20 Nm
step 2 = 70 Nm
step 3 = 170 Nm
step 4 = 280 Nm
step 5 = + 90°
step 6 = + 90°


OM904, OM906 Diesel Engine Specs

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

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

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


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


OM904 and OM906 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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