The MAN B&W L27/38 was developed in 1999 as a genset engine. The L27/38 engine was introduced to meet increasing demands for a compact yet high-output engine capable of delivering improved fuel efficiency, lower emissions, enhanced load response, and reduced lifecycle costs compared to earlier medium-speed engines at the time. By the early 2000s, the L27/38 engines had become widely used as both auxiliary generating engines and main propulsion units onboard container ships, tankers, ferries, offshore support vessels, tugs, fishing vessels, and smaller cargo ships. The L27/38 engine generally delivers power from 1,500 kW to 3,060 kW, with speeds between 720 and 800 rpm. The L27/38 engine became especially popular in genset applications for large container vessels due to its stable load response, compact dimensions, and operational reliability. One of the key features that made the MAN B&W L27/38 stand out was its high stroke-to-bore ratio of 1.4 combined with a high compression ratio of 16.5, which helped the engine achieve low fuel consumption and reduced NOx emissions. Additional features included efficient turbocharging systems, optimized combustion chamber design, smokeless operation, high-torque layout optimisation, and the capability to operate on MDO and HFO. Over the years, the L27/38 engine underwent several upgrades improving power density, fuel economy, emissions performance, and operational flexibility and increased power output per cylinder from 300 kW to 330 kW in genset version. Around the late 2000s, upgraded propulsion-focused variants incorporated new-generation MAN TCR turbochargers, improved load capability, strengthened internal components, and enhanced combustion optimization for tug and workboat applications. 

Although the MAN B&W L27/38 remains a comparatively modern engine platform relative to earlier MAN medium-speed engines, it has already established a strong reputation across global fleets. Support remains readily available through MAN Licensees and independent engine parts suppliers such as Alang Maritime. With parts from our own stock, access to original unused surplus components sourced from decommissioned vessels, and reliable sourcing through trusted local traders, Alang Maritime remains a good supplier of MAN B&W L27/38 engine spare parts.

Engine Configurations: 6L27/38, 7L27/38, 8L27/38, 9L27/38

Supply scope of Alang Maritime for MAN B&W L27/38 engines:

Complete engines, crankshafts, cylinder heads, cylinder liners, pistons, connecting rods, engine blocks, 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.