Mercedes Benz Classics: Owners Operation, Service, and Repair Workshop Manuals

Mercedes OM401 Diesel Engine Manuals

The Mercedes-Benz OM401 is a 6-cylinder V6 diesel engine with a volume of 9572 cc with turbocharged and intercooler turbocharged versions. Produced from 1975-1980


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Download: Mercedes OM401 Engine Service Repair Manual

Mercedes OM401 OM401A OM401LA Diesel Engine Service Repair Manual

  • Variants: OM401 Diesel, OM401A Turbo Diesel
  • OM401LA Intercooler and Turbocharged Diesel
  • Multi Unit Manual: OM401, OM402, OM403, OM404*
    • * Use as Reference for OM404 V12  Engines
  • Download: 26.2mb, 216 pages, .pdf

USD $19.95

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Download: Mercedes OM401 Engine Operation and Maintenance

Owner Operation Manual Language: English

Mercedes OM401 Diesel Engine Operation and Maintenance

USD $14.95

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Download: Mercedes OM401 Scheduled Maintenance Booklet

Language: English, French, Spanish, Italian, German

Mercedes OM401 Diesel Engine Maintenance Booklet

USD $9.95

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OM401 Technical Data

The Mercedes-Benz OM 401 diesel engine is a four-stroke motor with a volume of 575 cubic inches. This (400 engine series) was jointly developed by Daimler-Benz and MAN in the mid 1970s and was built jointly while preserving company specifics such as different combustion processes.

The OM401 engine is the first generation of V6 400 series diesels, released in 1975 and developing the capacity of 141 kW (192 hp). Most of the engines were produced for export. The OM401 offers a turbocharger and high fuel efficiency being the smallest among the 400 series V-engines.

This engine is designed with consideration of environmental norms Euro II. The OM401 has been widely used in road engineering and average tonnage trucks as well as combine harvesters, including combine harvesters CLAAS Lexion 460.

The engine series OM 401 V6, OM 402 V8, OM 403 V10 and OM 404 V12 complete the 400 series of diesel engines with 6 to 12 cylinders in V-arrangement.

Mercedes OM401 Diesel Engine

Variant Specifications

Variant CCM kW HP@RPM Bore/Stroke Comp. Torque @ RPM
OM401 9572 141 192@2500 125/130   628Nm@1300rpm
OM401 9572 144 196@2300 125/142   700Nm@1250rpm
OM401A 9572          
OM401LA 9572 180 245      
OM401LA 9572 200 272 128/142 16,9:1 1600Nm@2000rpm
OM401LA 9572 213 290      
OM401LA 9572 230 313      

Vehicle Applications

Output according to DIN 70020 Displacement Specs OM401 Applications
Variant HP KW RPM Bore Stroke CCM Vehicle Models
401.905 192 141 2500 125 130 9570 1219, K, S,A,AK,
1419,K,S,AK,AS,LS
1619, K, S, KO, AK
2219/6x2
2219/6x4
401.906 192 141 2500 125 130 9570 1219K,A
401.909 192 141 2500 125 130 9570 1719,K,AK,S
1919, K, AK, S
401.914 192 141 2500 125 130 9570 1419
14198
1619
1619S,KO
401.915 192 141 2500 125 130 9570 12198
401.916 192 141 2500 125 130 9570 1719
17198
1919
19198
401.919 192 141 2500 125 130 9570 1019F,AF
1219F,AF
1419F
401.922 192 141 2500 125 130 9570 1019F,AF
1219F,AF
1419F
401.923 192 141 2500 125 130 9570 1419L
1619L
401.924 196 144 2300 125 142 10456 1619,8
401.925 192 141 2500 125 130 9570 2219/6x2
2219/6 x 4, K, KO
401.926 192 141 2500 125 130 9570 2219/6x2
2219/6x4, KO
401.927 192 141 2500 125 130 9570 2219/6x2L

Mercedes OM401 V6 Diesel Motor

Version Model Codes

OM401, OM401A, OM401LA

  • OM401.900: Basic engine
    • OM401 A: Supercharged
  • OM401.901: Basic Engine
    • OM401 LA: Supercharged with compressor cooler
  • OM 401.905: 141 KW(190HP)
  • OM 401.906: 141 KW(190HP)
  • OM 401.907: 141 KW(190HP)
  • OM 401.908: 141 KW(190HP)
  • OM 401.909: 141 KW(190HP)
  • OM 401.912: 141 KW(190HP)
  • OM 401.913: 141 KW(190HP)
  • OM 401.914: 141 KW(190HP)
  • OM 401.916: 141 KW(190HP)
  • OM 401.918: 141 KW(190HP)
  • OM 401.919: 141 KW(190HP)
  • OM 401.921: 141 KW(190HP)
  • OM 401.922: 141 KW(190HP)
  • OM 401.925: 141 KW(190HP)
  • OM 401.927: 141 KW(190HP)

Supercharger, Charging Air Intercooler Variants

  • OM 401.970: 213KW (286HP)
  • OM 401.972: 230KW (309HP)
  • OM 401.973: 200KW (268HP)
  • OM 401.974: 200KW (268HP)
  • OM 401.975: 180KW (534HP)
  • OM 401.977: 200KW (268HP)
  • OM 401.978: 200KW (268HP)
  • OM 401.979: 230KW (309HP)
  • OM 401.980: 200KW (268HP)
  • OM 401.981: 230KW (309HP)
  • OM 401.984: 180KW (534HP)
  • OM 401.985: 200KW (268HP)
  • OM 401.986: 230KW (309HP)
  • OM 401.987: 230KW (309HP)
  • OM 401.989: 200KW (268HP)
  • OM 401.990: 180KW (534HP)
  • OM 401.991: 200KW (268HP)
  • OM 401.993: 230KW (309HP)
  • OM 401.994: 180KW (534HP)
Mercedes OM401 Engine Cross Section