Caterpillar · Auxiliary Engine

Caterpillar M43 Spare Parts

Genuine and Alang-reconditioned spare parts for the Caterpillar M43 four-stroke marine diesel engine — container ships, large roro, cruise main engines, ferry main propulsion. 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	M43
Maker	Caterpillar
Model	M43
Equipment	Four-stroke marine diesel engine
Bore	430 mm
Stroke	610 mm
Power output	5,400 kW (6M43C) – 9,450 kW (9M43C)
Speed	500 / 514 rpm
Production status	Current (largest CAT MaK)
Production years	1999–present
Application	Container ships, large RoRo, cruise main engines, ferry main propulsion

Figures as published for the M43. We confirm against the nameplate before quoting.

M43 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 Caterpillar items are sourceable through the yard.

About the Caterpillar M43

The Caterpillar M43 is a four-stroke marine diesel engine. It runs a 430 mm bore and 610 mm stroke. Status: Current (largest CAT MaK). Built 1999–present. Application: Container ships, large RoRo, cruise main engines, ferry main propulsion

Source: our Auxiliary Engine spec research file (auxiliary-engine/00-all-brands-MERGED.md).

Why Source M43 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 Caterpillar Models

M43C M46DF M34DF M32 3412 3508C All Caterpillar spare parts Auxiliary Engine spare parts Reconditioned parts 24–48hr emergency

Frequently Asked Questions

What Caterpillar M43 spare parts do you supply?

Genuine, OEM-equivalent and Alang-reconditioned parts for the M43, 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 M43 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 M43 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 M43 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