Wärtsilä W46 engine was introduced in 1987 – originally by the name of Vasa 46 – as a large-bore medium-speed heavy fuel burning engine that primarily operated as a propulsion unit with applications in power plants as well. The vessels that most saw the use of these engines were cruise ships. passenger ferries, LNG carriers, cargo ships and dredgers. Featuring a cylinder bore of 460 mm and a stroke of 580 mm, the W46 engines deliver an exceptional power-to-space ratio with a power output ranging from 905 kW to 1,050 kW per cylinder. And with configurations of in-line (6L, 8L, 9L) and V type (12V, 16V) engines, W46 is quite versatile in layout. That versatility also extends onto the fuels it can run on, with different grades of HFO, MDO, and later variants also introduced compatibility with dual fuels, LNG and methanol. Also features like modular built-on systems (integrated pumps and coolers), hydraulic tightening, and stiff engine block designs allow for lower operating costs and easier maintenance intervals. The W46 has been a very successful engine for Wärtsilä and that has been proven with the introduction of upgraded variants such as W46F in 2004, followed by W46DF and W46TS. But to this day, many original W46 engines from the 1990s and early 2000s serve on sailing vessels. 

Sourcing original parts for the older W46 can get difficult because of long lead times from manufacturers. This is where Alang Maritime can be of assistance, especially when it comes to major components such as cylinder liners, cylinder heads, pistons and connecting rods. With access to major engine components sourced from decommissioned vessels and reliable sourcing through trusted local traders and Wärtsilä specialists, Alang Maritime is a dependable option for Wärtsilä W46 engine spare parts and maintenance requirements.

Engine Configurations: W6L46, W8L46, W9L46, 12V46, 16V46

Supply scope of Alang Maritime for Wärtsilä W46 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, piston rings 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.