Launched in the late 1980s, the Daihatsu DL-20 is a member of the DL series of medium-speed marine diesel engines. Designed to provide dependable auxiliary power for commercial vessels, the DL-20 was developed as a slightly larger and more powerful successor to earlier engines in the DL family, combining compact dimensions with durability and fuel efficiency for continuous marine service. With a cylinder bore of 200 mm and a stroke of about 300 mm, the engine was engineered to achieve efficient combustion and stable performance during prolonged operation under demanding maritime conditions. The DL-20 was typically produced in inline 6-cylinder configurations, delivering outputs in the range of roughly 700 kW to around 900 kW at speeds of about 720–900 rpm, making it well suited for auxiliary generator sets on cargo ships, tankers and various work vessels. Like other engines in the DL family, the DL-20 incorporated robust structural construction, efficient turbocharging and the capability to operate on HFO and MDO, contributing to economical operation and dependable long-term service. 

Although newer Daihatsu engine generations have since replaced many engines of this class, the DL-20 continues to operate on numerous vessels worldwide and remains supported through independent spare-parts suppliers, OEM channels and global marine service providers. With original parts from our own stock, along with access to unused surplus from ship recycling yards and local suppliers, Alang Maritime can supply high quality parts for your Daihatsu DL-20 engines.

Engine Configurations: 6DL-20, 6DL-20F, 6DL-20S, 6DL-20L, 6DL-20LF, 6DL-20LS

Supply scope of Alang Maritime for Daihatsu DL-20 engines: 

Complete engines, crankshafts, cylinder heads, cylinder liners, pistons, connecting rods, engine blocks, bedplates, exhaust valves, inlet valves, valve seats, bearings, lube oil pumps, air starters, fuel injectors, plungers and other consumables.

Alang Maritime is one of Southeast Asia’s premier suppliers of high quality second hand spare parts for two-stroke and four-stroke marine diesel engines. We can supply new (unused surplus) parts that are obtained from scrap vessels or shipowners’ surplus from cancelled projects. We can also supply reconditioned parts, as well as used parts that are offered with technical reports.

The brands that we supply parts for are:

Yanmar | Daihatsu | MaK | Wärtsilä | MAN B&W | Bergen | Sulzer | Pielstick | Caterpillar | Niigata | Hyundai-HiMSEN

Alang Maritime stocks new, reconditioned, as well as quality controlled used parts for marine diesel engines. Our strengths are our 30+ years of experience in the maritime industry, a huge stocking space of more than 3,500 sq. mt., an extensive stock of more than 25,000+ engine parts, our technical knowledge of marine diesel engines and our close proximity to the Indian ship recycling yard of Alang. That is why Alang Maritime is your premier solution for high quality marine diesel engine parts at an economical cost.