MaK · Auxiliary Engine

MaK M551 Spare Parts

Genuine and Alang-reconditioned spare parts for the MaK M551 four-stroke marine diesel engine — large general cargo, tankers, obos of 70s/80s era. Shipped from Bhavnagar, India to any port worldwide.

Parameter	M551
Maker	MaK
Model	M551
Equipment	Four-stroke marine diesel engine
Bore	450 mm
Stroke	550 mm
Configuration	Inline 6, 8 cylinders
Power	780–835 BHP/cyl (~4,000–5,200 kW for 8-cyl)
Speed	425 rpm
Fuel	HFO / MDO
Status	🔴 Obsolete (Alang Advantage)
Production years	1970s–1980s
Application	Large general cargo, tankers, OBOs of 70s/80s era

Figures as published for the M551. Where a figure is not in a source we hold, this page says “not published to us” rather than estimating it. Send your equipment and part number and we confirm against the nameplate before quoting.

M551 Spare Parts We Supply

Cylinder liner
Cylinder head (complete)
Piston crown and skirt
Piston rings
Inlet and exhaust valves
Valve seats and guides
Fuel injection pump
Fuel injector / nozzle
Connecting rod and big-end bearing
Main bearings
Camshaft and cam followers
Turbocharger cartridge
Charge-air cooler element
Governor / actuator

Genuine, OEM-equivalent and Alang-reconditioned. Every reconditioned part is measured against the maker’s limits before it leaves us. If your part is not listed, send the part number — most MaK items are sourceable through the yard.

About the MaK M551

The MaK M551 is a four-stroke marine diesel engine. It runs a 450 mm bore and 550 mm stroke. Status: 🔴 Obsolete (Alang Advantage). Built 1970s–1980s. Application: Large general cargo, tankers, OBOs of 70s/80s era

Source: our Auxiliary Engine spec research file (auxiliary-engine/02-bergen-mak-yanmar-himsen.md).

Why Source M551 Parts from Wattmare?

We are in Bhavnagar, next to Alang — the world’s largest ship-recycling yard, and where reconditioned marine parts actually come from. We hold fast-moving items, source the rest through the yard and our trader network, and dispatch worldwide in 24–48 hours on emergency orders.

Salim Dholia
Wattmare · Bhavnagar / Alang, India

View All MaK Models

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Frequently Asked Questions

What MaK M551 spare parts do you supply?

Genuine, OEM-equivalent and Alang-reconditioned parts for the M551, including cylinder liner, cylinder head (complete), piston crown and skirt, piston rings, inlet and exhaust valves. Send the part number for anything not listed.

What is the delivery time for M551 parts?

Stock items dispatch the same or next working day from Bhavnagar. Emergency orders ship in 24–48 hours to any major port. Sourced items depend on the yard — we confirm a real date before you commit.

Are your M551 parts genuine or reconditioned?

Both. We supply genuine and OEM-equivalent new parts, and Alang-reconditioned parts measured against the maker's limits before dispatch. We tell you which you are buying — we do not sell reconditioned as new.

Need M551 parts?

Send the equipment number and part number. We quote with a real availability date, not a maybe.

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