Caterpillar · Auxiliary Engine

Caterpillar M20 Spare Parts

Genuine and Alang-reconditioned spare parts for the Caterpillar M20 four-stroke marine diesel engine — osv gensets, ferries, tugs, small bulker auxiliaries. 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	M20
Maker	Caterpillar
Model	M20
Equipment	Four-stroke marine diesel engine
Bore	200 mm
Stroke	300 mm
Power output	1,020 kW (6M20C) – 1,710 kW (9M20C)
Speed	900 / 1,000 rpm
Production status	Current
Production years	1992–present (M20 base, "C" variant)
Application	OSV gensets, ferries, tugs, small bulker auxiliaries

Figures as published for the M20. We confirm against the nameplate before quoting.

M20 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 M20

The Caterpillar M20 is a four-stroke marine diesel engine. It runs a 200 mm bore and 300 mm stroke. Status: Current. Built 1992–present (M20 base, "C" variant). Application: OSV gensets, ferries, tugs, small bulker auxiliaries

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

Why Source M20 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

M20C M25 M25C M25E VM43C 3406 All Caterpillar spare parts Auxiliary Engine spare parts Reconditioned parts 24–48hr emergency

Frequently Asked Questions

What Caterpillar M20 spare parts do you supply?

Genuine, OEM-equivalent and Alang-reconditioned parts for the M20, 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 M20 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 M20 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 M20 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