Propulsion engine 6M21.3 SCR
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Propulsion engine - 6M21.3 SCR - MOTEURS BAUDOUIN - diesel / commercial / work
Propulsion engine - 6M21.3 SCR - MOTEURS BAUDOUIN - diesel / commercial / work
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Propulsion engine - 6M21.3 SCR - MOTEURS BAUDOUIN - diesel / commercial / work - image - 3
Propulsion engine - 6M21.3 SCR - MOTEURS BAUDOUIN - diesel / commercial / work - image - 4
Propulsion engine - 6M21.3 SCR - MOTEURS BAUDOUIN - diesel / commercial / work - image - 5
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Propulsion engine - 6M21.3 SCR - MOTEURS BAUDOUIN - diesel / commercial / work - image - 7
Propulsion engine - 6M21.3 SCR - MOTEURS BAUDOUIN - diesel / commercial / work - image - 8
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Characteristics

Type
propulsion
Power source
diesel
Market
for boat, commercial, for ships, work
Technology
SCR
Pollution control standard
IMO 3
Power

368 kW, 405 kW, 441 kW
(500.3 hp, 550.6 hp, 599.6 hp)

Displacement

12,500 cm³
(423 US fl oz)

Number of cylinders

6 unit

Engine speed

650 rpm, 1,800 rpm, 2,100 rpm
(4,084 rad.min-1, 11,310 rad.min-1, 13,195 rad.min-1)

Bore

127 mm
(5 in)

Stroke

165 mm
(6.5 in)

Description

Overview
The 6M21.3 SCR is a Baudouin marine propulsion engine designed for commercial and workboat applications, compliant with IMO Tier III requirements when equipped with SCR aftertreatment.

Applications
  • Marine propulsion for commercial vessels, tugs, workboats and fishing boats
  • Inland waterway vessels requiring IMO III compliance


Engine data
  • Cylinders: 6
  • Bore & Stroke (mm): 127 x 165
  • Total displacement: 12.5 L
  • Engine rotation: Counterclockwise
  • Idle speed: 650 RPM
  • Flywheel: 14"
  • Flywheel housing: SAE 1


Ratings
  • P1 - 368 kW (500 HP) @ 1800 RPM - IMO III
  • P2 - 405 kW (550 HP) @ 1800 RPM - IMO III
  • P3 - 441 kW (600 HP) @ 2100 RPM - IMO III


Certifications & emissions
  • Designed for IMO Tier III compliance with SCR (Selective Catalytic Reduction) exhaust aftertreatment


Downloads
  • 6M21.3 SCR Spec. Sheet - English
  • Marine Product Guide


Technical specifications
  • Manufacturer: Baudouin
  • Model: 6M21.3 SCR
  • Type: Marine propulsion engine
  • Total displacement: 12.5 L
  • Power ratings: P1 368 kW / P2 405 kW / P3 441 kW
  • Certifications: IMO III (with SCR)

Catalogs

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Exhibitions

Meet this supplier at the following exhibition(s):

Adipec

2-05 Nov 2026 Abu Dhabi (United Arab Emirates)

  • More information
    Euronaval

    3-06 Nov 2026 Paris (France)

  • More information
    *Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.