The Sulzer ZA40 engine was developed as a redesign of the earlier Z40/48 engines in 1982. The ZA40 engines were designed primarily for propulsion use on medium-sized vessels such as ferries, icebreakers and cargo vessels and for industrial use as well. Featuring a similar bore and a stroke of it’s predecessor – 400 mm and 480 mm, respectively – the ZA40 engines were able to produce more power with 660 kW per cylinder, at operating speeds of 500 to 600 rpm. The ZA40 engines were HFO compatible. There were several features that made the ZA40 popular such as drilled cooling spaces in cylinder heads, cylinder liners and piston crowns for high mechanical stiffness and low thermal stress; nimonic exhaust valves with water cooled seat inserts for a longer TBO; cylinder heads without valve cages to improve maintainability. And as with all Sulzer Z type engines, the ZA40 also had rotating pistons, but with an improvement – The rotating piston for the ZA40 engines benefited from simplification and bore cooling of the crown was also introduced. An optimised arrangement of the cooling bores reduced stresses by around 10%.

Though now considered legacy engines, support for ZA40 still remains readily available through Sulzer licensees and specialists, and independent engine parts suppliers. With access to major engine components sourced from decommissioned vessels and reliable sourcing through trusted local traders, Alang Maritime is a dependable option for Sulzer ZA40 engine spare parts.

Engine Configurations: 6ZA40, 8ZA40, 12ZAV40, 16ZAV40

Supply scope of Alang Maritime for ZA40 engines:

Crankshafts, cylinder heads, cylinder liners, pistons, connecting rods, engine blocks, exhaust 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.