Find diesel engine parts by operating application. Diesel Part Source supports marine propulsion, auxiliary generators, industrial equipment, rail, shipyard repair, and power generation users with part-number verification and global delivery.
Send your application, engine model, serial number, part list, quantity, and destination. We verify parts before quotation.
Send Parts InquiryMTU Marine Engine Parts
MTU marine engine parts for yachts, boats, ferries, workboats, commercial vessels, and shipyards, with model and serial-number verification before quotation.
View application →Auxiliary & Generator Engines
Service and repair parts for auxiliary engines and generator sets in marine, commercial, industrial, and standby power applications.
View application →Industrial Equipment Engines
Diesel engine parts for pumps, compressors, heavy machinery, oilfield units, construction equipment, and industrial power systems.
View application →Rail Engine Parts
MTU and diesel engine parts support for rail maintenance teams, locomotive service providers, and transit operators.
View application →Shipyard Repair & Overhaul
Parts-list checking, consolidated shipment, and urgent sourcing support for shipyards and marine repair companies.
View application →Energy & Power Plant Engines
Diesel engine parts for energy suppliers, standby power systems, independent power plants, and industrial generator operations.
View application →Why Application Matters for Parts
The same engine series is built in different versions for different jobs. On MTU engines the letter in the model code shows the application: M for marine, G for generator sets, R for rail, and S for industrial and mining use. A marine engine usually has a seawater pump and heat exchanger, a generator engine runs at constant speed and is often radiator-cooled, and a rail engine is packaged to the vehicle maker's layout. Filters and seals are often shared, but cooling, fuel-injection, turbocharging, and control parts frequently differ between these versions.
Each application page above explains the parts that are typically requested for that use and the details we need to confirm them. If your engine is used in a way that is not listed, for example a marine generator set, choose the closest page and mention the actual use in your inquiry. The industries pages cover the buying side instead: how shipyards, rail depots, power producers, and industrial operators usually order, ship, and document parts.