In-line 4-cylinder diesel engine

  • EURO-5


  • 900 thous. km


  • 30 thous. km


  • Description
  • Specification
  • Application
  • Documents


Engine type. 4-cylinder YMZ-530 family diesel engines, 4-stroke, in-line, with direct fuel injection, turbocharged, water-cooled with supercharged air intercooler of the “air-to-air” type installed on the vehicles

Engine meets the emission class Euro 5 - UN Regulations No. 49-05G (В2 with EOBD II), № 24-03 - euro-5

Design features

To achieve the emission class Euro-5 the following are applied:

  • The EGR (exhaust gas recirculation) system and РМ-САТ (catalyst converter)
  • FIE (fuel injection equipment) with high energy injection up to 2000 bar

The upgraded fuel supply system complied with Euro-5 includes a new high pressure fuel pump, developed by YZDA specialists and fully adapted for operation with Bosch components


There is a possibility to install the following:

  • pneumatic brake compressor with output up to 350 l/min and up to 500 l/min;
  • steering booster pump;
  • air conditioner compressor;
  • starting preheater and cabin heater;
  • hydraulic pump drive.

The engines may be completed with clutches and gearboxes according to SAE 3 standards.

ECU functions

  • controls the engine;
  • interact with electronic devices of the vehicle via CAN (SAE J 1939);
  • saves the error information in the internal memory;
  • performs the functions of on-board diagnostics in accordance with the requirements of UN Regulation No.49-05 G, according to ISO 15031 and SAE J 1939 standards;
  • performs the function of speed limitation in accordance with the requirements of UN Regulation No. 89;
  • performs the function of torque limitation in accordance with the requirements of UN Regulation No. 49-05 G;
  • warns the driver about emergency situations by means of the lamps on the vehicle dashboard (engine diagnostics, emergency oil pressure lamp, etc.);
  • performs the function of the emergency protection of the engine;
  • performs joint operation with ESP-vehicle stability control system, emergency brake application, adaptive cruise control (UN Regulations No.13, App. 21, №131) and duplicates of additional body control from the remote operator panel (crane operator).

Fuel supply system and control system. Common rail type, high-energy injection and electronic control unit manufactured by "Bosch"


Characteristics Values
Cylinder bore & stroke, mm 105 х 128
Displacement, liters 4,43
Rated power, gross, kW (hp) 154,4 (210)
Net power (Regulations № 85), kW (hp) 153,6 (208,9)
RPM, min-1 2300
Max. torque, gross, Nm (kgf.m) 780 (79,5)
Speed at max. torque, min-1 1200-1600
Min. specific fuel consumption, g/kWh (g/hp.h) 198 (146)
Engine lifetime, thous.km 900
Overall dimensions, mm LхWхH 884 / 708 / 891
Mass of engine, kg 500
Ecology (UN Regulations) euro-5 № 49-05G (В2, EOBD II)

Speed ​​characteristics

Speed ​​characteristics


Configurations Application
YMZ-53403 (-20) Urban medium buses (LiAZ-4292), weight up to 14.5 t
YMZ-53403-10 (-30) Urban medium buses (KAVZ-4270), weight up to 16 t
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