Prima M4: The flexible, design-proven multi-purpose locomotive

Leading the way to greener and smarter mobility, worldwide.
Our ambition is to accompany all transportation stakeholders in meeting tomorrow’s mobility challenges. We strive to provide them with the most efficient and digital mobility systems, while further improving the environmental friendliness of our solutions.
Smart innovation for sustainable mobilityAcquisition of Bombardier Transportation
Alstom has completed the acquisition of Bombardier Transportation, creating a global mobility leader committed to respond to the increasing need for greener transportation worldwide.
Find out moreHealthier Mobility™
We are working on a Healthier Mobility™ portfolio of ready-to-implement and in-development solutions organised in four domains, which preserve health, limit impact on the environment while maintaining equipment reliability.
Learn moreInnovation drives our growth
To lead in green and smart solutions, we innovate in six piority areas to respond to mid- and long term business drivers: green traction, road electromobility, eco-design and manufacturing, autonomous train, data driven rail mobility and multimodality and flow management.
Learn moreLeading the way to sustainable and smart mobility - naturally
Our strategic plan entitled "Alstom in Motion" has a clear ambition: be the leading global innovative player for a sustainable and smart mobility.
A comprehensive portfolio of mobility solutions
We offer a complete range of equipment and services, from high-speed trains, metros, trams and e-buses to integrated systems, customised services, infrastructure, signalling and digital mobility solutions.
Discover our solutionsState-of-the art and validated solutions
We offer extensive range of proven and modular components for all types of railway vehicles. Continuous research and development, combined with sound validation equipment and decades of return of experience on Alstom and non-Alstom trains, guarantee that our customers will receive both state-of-the art and validated solutions.
Learn moreInnovating along the track
We offer a complete range of sustainable solutions for tracklaying, electrification and the supply and installation of electromechanical material along the entire track, in stations and depots. These infrastructure solutions, whether they are for urban or mainline projects, facilitate the integration of products as part of turnkey solutions.
Learn moreReinventing mobility
Alstom draws on its technological expertise and innovative capabilities to meet the current and future needs of operators and passengers. Its solutions cover a whole range of services, including urban transit, mainline travel, regional transport, mining networks and freight.
Learn moreA custom support
We offer a complete range of customised services including maintenance, modernisation, parts & repairs and support. All of which ensure operators the highest level of availability for their fleets, infrastructure and signalling systems.
Learn moreImproving traffic flow
Our state-of-the-art signaling solutions allow operators to ensure the highest standards in safe, seamless travel with urban and mainline solutions that meet the specific needs of each operation environment.
Learn moreIncreasing efficiency
Drawing on our complementary business lines, we offer bundled and fully integrated systems that include rolling stock, signaling, infrastructure and services. This turnkey approach optimises project execution and transport system performance.
Learn moreBombardier’s solutions
Alstom has acquired Bombardier Transportation. Browse rail.bombardier.com to discover Bombardier Transportation's solutions.
Newsroom
Find the latest Alstom press releases and news, press kits, your regional press contacts and more!
Enter the newsroomThe one stop shop for all relevant information for investors and shareholders
Access our financial & share information, our financial calendar and results, regulated information, shareholders' meetings and investors' contacts & presentations.
See moreJoin us
At Alstom, we value curious and innovative people who are passionate about working together to reinvent mobility, making it smarter and more sustainable.
Learn moreJoin Alstom
We are constantly looking for the right talents to solve real-world mobility challenges and invent the transport systems of tomorrow. Visit our career website to search our job openings or to create an account in our candidate database.
Browse jobsPrima M4 at a glance
With a modular and adaptable design, the Prima M4 locomotive offers tailored solutions to both freight and passenger operators.
Whether pulling passenger trains at up to 200 km/h or hauling freight at 140 km/h, the electric multi-purpose Prima M4 delivers high operational performances for all customer requirements. Designed for interoperability, it can adapt to a wide range of European railway regulations and environments, including signalling, safety and traction power. This is a key asset for the growth of cross-border rail freight anticipated in the coming years.
A member of our Prima locomotive range which benefits from our 100-year experience in locomotive design, the Prima M4 is based on a flexible platform with modular architecture, offering the most up-to-date developments and solutions. Owners even have the opportunity of changing the locomotive’s purpose from freight to passenger service simply by changing the bogie.
The modular approach means that spare parts and maintenance are easier to manage, but the Prima M4 is a low-maintenance locomotive which can be equipped with TrainTracer and monitored on our HealthHub. Our expertise in maintainability thus improves the availability and reliability of rolling stock.
But we haven’t forgotten an important aspect of the locomotive: the driver. The Prima M4 is especially suited to long-distance passenger or freight operations and the most extreme weather conditions. The large cabin is fitted with a range of optional features such as climate control, heated seat, cooking and storage space and a toilet on request. It can also accommodate the European Driver’s Desk, offering the most user-friendly driver experience.