Second Level Dealer

Learn more about additional offerings and relationships with our Second Level Dealers that will provide you with additional technology and services you need. 

MaK Authorized Dealers

PT. Multi-Diesel Service

PT. Multi Diesel Service was established in 2004 in Bogor – West Java as an independent Marine and stationary diesel engine service provider.

Since 2012 MDS is an authorized dealer for MaK Marine and Power Generation spare parts and services in Indonesia.

Our Indonesian and expatriate team of engineers’ have over forty years experience working for and with MaK in Indonesia and around the world.

Continuous advanced training by our principal Caterpillar Marine Asia Pacific ensures our engineers’ up to date knowledge and capabilities in servicing MaK engines.

As an authorized dealer for MaK parts and service in Indonesia we are committed to our customers to supply genuine MaK parts within the shortest time and to provide MaK standard of service and support anytime and anywhere.

MDS customer service include:

  •   Installation & commissioning
  •   24 hours technical support
  •   Trouble shooting
  •   Sea trial
  •   Maintenance contract
  •   Crew training
  •   Engine overhauls
  •   Components overhaul

Engine components serviced at MDS workshop facility include:

  •   Cylinder heads
  •   Pistons & connecting rods
  •   Cylinder liner honing
  •   Turbochargers
  •   Fuel injection pumps
  •   Fuel injectors
  •   Charge air coolers
William Adams PTY LTD


5th July 2022

It is with great pleasure to announce the establishment of William Adams Pty Ltd as our authorized MaK brand engine Parts and Services distributor in Australia, New Zealand, Solomon Islands, American Oceania, Fiji Islands, Vanuatu, and French Polynesia. Caterpillar Marine Asia Pacific Pte Ltd (also known as “MaK Asia”) and William Adams Pty Ltd entered into a formal agreement on 24th June 2022.

William Adams Pty Ltd has replaced CJA Marine Technology as our MaK Parts and Services distributor in Australia who as previously communicated ceased operations at the end of 2021.

With this appointment, William Adams Pty Ltd has responsibility for supplying MaK genuine parts, product support, and after sales services to MaK customers in the countries listed above with direct support from MaK.

As a long-established Caterpillar Dealer with a strong focus and excellent reputation in servicing Caterpillar engines in marine applications, William Adams makes the ideal partner to expand their marine service portfolio to include MaK brand engines to help MaK Asia to ensure that its customers are well serviced across the region.


William Adams Pty Ltd - MaK Service Contacts:

1) Mark Sweeney – General Manager – Operations

17-55 Nantilla Road, Clayton, Victoria 3168

DID: +61-3-9566 0623



2) Michael Whelan – Branch Manager

(First point of contact for all Service Operations)

2-4 Fowler Road, Dandenong, Victoria 3175

DID: +61-3-9767 3678

Mobile: +61-429 516656



EMD Authorized Dealers

Hawthorne CAT


Hawthorne Cat is the authorized dealer for Caterpillar construction and power equipment in San Diego, Hawaii, Guam, Saipan and American Samoa. Hawthorne sells, rents, provides parts and service and emission solutions to various industries including heavy construction, general building construction, earthmoving, excavation, landscaping, marine, paving, waste management and power generation.

Website link:

Neptunus Power Plant Services Pvt. Ltd.


Neptunus Power Plant Services Pvt. Ltd was incorporated in 1996. Customer delight is the cornerstone of our Business philosophy. From building power plants, sourcing spares, optimizing operations and maintaining engines, we offer a one stop solution to our Offshore, Marine and Industrial Customers.We are based in Navi Mumbai, India. Our Workshop in Navi Mumbai is equipped to carry out major repairs on Diesel and Gas engines with load trials. Our overseas office is located in UAE. Neptunus is also one of the largest exporters of Copper alloy (Cu3) from India.

Website link: