Baudouin Engine Specifications: 6M33 and 12M26

Baudouin M Series engines power generator sets and marine propulsion worldwide. The most requested baudouin engine specifications in our export business are the 6M33 and the 12M26, because their parts – liners, head gaskets, bearings and pumps – are ordered by engine model. Here is the official data from the manufacturer datasheets.

Baudouin M Series Specifications Table

Baudouin M Series engine specifications 6M33 12M26

Model Configuration Bore x Stroke (mm) Displacement (L) Compression Ratio Typical Rating
6M33 6 inline, 4 valves/cyl 150 x 185 19.6 15:1 up to 650 hp marine @ 1800 rpm; ~750 kVA gensets
12M26 V12, 90 degree 150 x 150 31.8 15:1 ~960-1025 kVA gensets; marine auxiliary

6M33 Specifications in Detail

The Baudouin 6M33 is a turbocharged and intercooled inline six with four valves per cylinder, a 150 mm bore and 185 mm stroke for 19.6 litres, and a 15:1 compression ratio. Engine dimensions are about 2278 x 1138 x 1571 mm. Marine versions such as the 6M33C650-18 deliver 650 hp at 1800 rpm with IMO Tier II certification (CCS/BV/IRS class), and generator versions run around 750 kVA at 1500 rpm. Fuel consumption is about 198 g/kWh.

12M26 Specifications in Detail

The Baudouin 12M26 is a 90-degree V12 with a 150 mm bore and 150 mm stroke, 31.8 litres of displacement and a 15:1 compression ratio. It is the workhorse of large 960-1025 kVA generator sets and marine auxiliary applications, running at 1500/1800 rpm depending on the market.

Which Parts Fit Which Baudouin Engine

  • Both engines share the 150 mm bore, but the different strokes (185 vs 150 mm) mean pistons, liners and crankshafts are never interchangeable.
  • The 6M33 cylinder head gasket and liner kit are the fastest-moving service items – see our Baudouin full gasket set.
  • Main bearing sets and Baudouin M Series crankshafts are stocked for both models.

Frequently Asked Questions

What is the Baudouin 6M33 displacement?

The Baudouin 6M33 displacement is 19.6 litres from a 150 mm bore and 185 mm stroke, with four valves per cylinder and a 15:1 compression ratio.

Is the Baudouin 12M26 a V-engine?

Yes, the 12M26 is a 90-degree V12 with a 150 x 150 mm bore and stroke and 31.8 litres of displacement, used mainly in large generator sets.

EPID Diesel Engine Parts supplies genuine-quality M Series components from stock. Check the Baudouin engine parts range and message us on WhatsApp with your engine serial number for a quote.


    Please feel free to give your inquiry in the form below.

    We will reply in 24 hours.

    Leave Your Message. We will reply with you as soon as possible.