Wärtsilä · Main Engine

Wärtsilä Wärtsilä 31 Spare Parts

Genuine and Alang-reconditioned spare parts for the Wärtsilä Wärtsilä 31 four-stroke marine diesel engine — main propulsion on ferries, osvs, tankers, lng-fuelled bulkers; aux genset on large cruise ships, lng carriers. Shipped from Bhavnagar, India to any port worldwide.

Bhavnagar · beside Alang yard
24–48hr emergency dispatch
Genuine · OEM-equivalent · reconditioned
Measured to maker’s limits

Parameter	Wärtsilä 31
Maker	Wärtsilä
Model	Wärtsilä 31
Equipment	Four-stroke marine diesel engine
Bore	310 mm
Stroke	430 mm
Power output	4.6–10.4 MW (650 kW/cyl diesel; 590/610 kW/cyl DF; 530–600 kW/cyl SG)
Speed	720 / 750 rpm
Production status	Current (introduced 2015 — Guinness "World's most efficient 4-stroke")
Production years	2015–present
Application	Main propulsion on ferries, OSVs, tankers, LNG-fuelled bulkers; aux genset on large cruise ships, LNG carriers

Figures as published for the Wärtsilä 31. We confirm against the nameplate before quoting.

Wärtsilä 31 Spare Parts We Supply

Cylinder liner
Cylinder head complete
Cylinder head gasket set
Piston complete
Piston crown and skirt
Piston rings
Gudgeon pin and bush
Connecting rod
Big-end bearing shells
Main bearing shells
Thrust washers
Camshaft and cam sections
Cam followers / roller guides
Inlet valve with seat and guide
Exhaust valve with seat and guide
Valve rotators and springs
Rocker arm assembly
Push rods
Fuel injection pump
Fuel pump element (plunger and barrel)
Fuel injector and nozzle
High-pressure fuel pipe
Lube oil pump
Water pump (HT/LT)
Turbocharger cartridge
Charge-air cooler element
Governor drive and linkage
Complete gasket and O-ring kit

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 Wärtsilä 31

The Wärtsilä Wärtsilä 31 is a four-stroke marine diesel engine. It runs a 310 mm bore and 430 mm stroke. Status: Current (introduced 2015 — Guinness "World's most efficient 4-stroke"). Built 2015–present. Application: Main propulsion on ferries, OSVs, tankers, LNG-fuelled bulkers; aux genset on large cruise ships, LNG carriers

Source: our Main Engine spec research file (auxiliary-engine/01-cat-daihatsu-wartsila4stroke.md).

Why Source Wärtsilä 31 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

Related Wärtsilä Models

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Frequently Asked Questions

What Wärtsilä Wärtsilä 31 spare parts do you supply?

Genuine, OEM-equivalent and Alang-reconditioned parts for the Wärtsilä 31, including cylinder liner, cylinder head complete, cylinder head gasket set, piston complete, piston crown and skirt, piston rings. Send the part number for anything not listed.

What is the delivery time for Wärtsilä 31 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 Wärtsilä 31 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 Wärtsilä 31 parts?

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

WhatsApp for a quote Call +91 98252 08105