Wärtsilä · Main Engine

Wärtsilä X40-B Spare Parts

Genuine and Alang-reconditioned spare parts for the Wärtsilä X40-B four-stroke marine diesel engine — small/handysize bulkers, coastal tankers, small product tankers, general cargo, small reefer vessels. Shipped from Bhavnagar, India to any port worldwide.

Parameter	X40-B
Maker	Wärtsilä
Model	X40-B
Equipment	Four-stroke marine diesel engine
Bore	400 mm
Stroke	1,770 mm (estimated; not publicly stated, derived from family stroke/bore ratio ~4.4)
Cylinders	5–8 cylinders
Speed at MCR	~146 rpm
MEP	~21 bar (R1)
SFOC	~173 g/kWh (Tier II, 100% load)
Fuel	HFO + MGO
IMO Tier	Tier II / Tier III (SCR)
Status	Legacy / quietly discontinued — WinGD's 2026 portfolio has removed X40-B from active offering; spare parts and service s
Application	Small/handysize bulkers, coastal tankers, small product tankers, general cargo, small reefer vessels

Figures as published for the X40-B. 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.

X40-B 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 Wärtsilä items are sourceable through the yard.

About the Wärtsilä X40-B

The Wärtsilä X40-B is a four-stroke marine diesel engine. It runs a 400 mm bore and 1,770 mm (estimated; not publicly stated, derived from family stroke/bore ratio ~4.4) stroke. Status: Legacy / quietly discontinued — WinGD's 2026 portfolio has removed X40-B from active offering; spare parts and service still supported. Application: Small/handysize bulkers, coastal tankers, small product tankers, general cargo, small reefer vessels

Source: our Main Engine spec research file (main-engine/01-wartsila-wingd.md).

Why Source X40-B 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

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Frequently Asked Questions

What Wärtsilä X40-B spare parts do you supply?

Genuine, OEM-equivalent and Alang-reconditioned parts for the X40-B, 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 X40-B 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 X40-B 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 X40-B parts?

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

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