The Super Maxi starter was released in June 2002. The Super Maxi is suitable for Diesel engines up to 18 Litre.

Startwell is proud to boast the Super Maxi is the first manually operated starter in the world, to be able to start an 18 Litre Diesel engine, which was deemed impossible. The Super Maxi starter provided Ship Builders with a starter range that they could offer as a starting device in their ship, which was easy to install and could be operated on large engines which were coupled with Emergency Generators. As a result the Super Maxi is a popular starter within the ship building market.

The Super Maxi starter is used in many applications including Caterpillar, Cummins, Detroit, Man, Perkins, Scania and Volvo.