Engine Mercedes OM457LA

Engine Mercedes OM457LA

The 12-liter OM 457 engine series includes 3 powerful and economical engines – 315 kW (428 HP), 295 kW (401 HP) and 260 kW (354 HP) The OM457LA engine complies with the EURO emission class -five. It has an excellent balance of high power, fuel efficiency and motor life, reaching 1 million km.

Maximum torque is achieved at low revs, corresponding to low specific engine consumption, which results in high fuel efficiency. Electronically controlled injectors allow fuel to be injected at a higher pressure, which has a positive effect on the combustion efficiency.

Explanation of OM457LA marking

OM Heavy Fuel Oil (Diesel) ICE
457 Engine type: 6-cylinder in-line.
L Charge air cooling.
A outlet turbocharger.

Specifications

Manufacturer Daimler Chrysler
Also called OM 457
Start of production 2003
Cylinder block alloy cast iron
Fuel system direct injection
Configuration inline
Number of cylinders 6
Piston stroke, mm 155
Cylinder bore, mm 128
Compression ratio 18.5
Displacement, cc 11967
Power output, hp 354/2000
401/2000
428/2000
Torque output, Nm / rpm 1600/1100
…
2100/1100
Fuel type diesel
Euro standards Euro 5
Weight, kg 1045 (dry)
Dimensions, mm
— length
— width
— height
1316
746
1019
Firing order  1-5-3-6-2-4
Max normal engine operating temperature, °C 100
Engine lifespan, km
— official information
1 000

Engine Mercedes OM457LAAll Mercedes-Benz Axor powertrains, thanks to BlueTec technology and the Telligent service system, comply with the strictest emission standards – including Euro 5. The Telligent engine management system with injection pressures up to 2300 bar ensures optimized fuel combustion.

Features of the Daimler OM-457LA motor:

  • outlet gas aftertreatment system – reduces emissions and improves fuel efficiency;
  • an electronic fuel delivery system that includes electronically controlled injectors that inject fuel at high pressure for more complete combustion. This system has a positive effect on economy and productivity;
  • Blue Tec fuel economy technology;
  • direct injection system with PLD fuel equipment;
  • turbocharged with intercooling.
El Guardiola Author: El Guardiola
Doctor of Technical Sciences, former engineer at the Volkswagen plant in Chattanooga, Tennessee (10 years of experience), holder of certificates and patents for inventions, author of a training manual for employees of the Volkswagen Group of America.
I consider the internal combustion engine to be the greatest technological achievement and I want to provide information about them to a wide range of car owners.

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