The manufacturing of the Mirrlees Diesel Engines in the UK has now ceased and moved to other parts of the world after the company was acquired by MAN. The range of Diesel Engines manufactured by Mirrlees UK (MAN) has now ceased to the best of our knowledge. The Mirrlees range of Engines over the most recent years has been the ‘K major’ along with the ‘MB’ range of Engines.

After the acquisition of Mirrlees and Ruston diesels both companies were merged in the Stockport UK works.

Since that time the original works have undergone redevelopment of new offices on the land that was formerly Mirrlees. At the time of writing (2009) most of the out buildings have been levelled for new buildings and are now up for rent or sale and only a small part of the original Mirrlees buildings remain.

There are still a large amount of Mirrlees diesels in use all over the world, as a result of downsizing in the UK original Mirrlees/Ruston spares have become rare and hard to get hold of.

Hydraulic & Gas Services Ltd of Stockport UK have a vast experience in supplying spare parts for most of the range of both the Ruston and Mirrlees Engines.

The range manufactured and approved, originally by Mirrlees (MAN) cover the range SD103 – SD117, SD571 – SD579, ‘K’ ‘MB’ ‘L’ ‘J’ and many other parts that have been manufactured for over 20 years.

Most of the parts are donor parts to larger fabrications and manifolds, however many are used directly onto the Engines.

Hydraulic & Gas Services of Stockport UK only manufacture fittings and not complete manifold assemblies that were used in the build of both Mirrlees and Ruston Engines.