Deutz AG is an engine manufacturer, based in Cologne in Germany, the company was founded in 1864 as N.A.Otto& Cie by Nikolaus Otto the inventor of the four stroke internal combustion engine. In the early years Otto and his business partner Eugen Langen were only interested in the production of stationary engines, however the technical director Gottlieb Daimler was eager to produce engines for automobiles and was sidelined by the company and he resigned taking Wilhelm Maybach with him to form Daimler Benz.

Deutz also produced agricultural machines such as combine harvesters and tractors as well as commercial vehicles including trucks and buses.

The early personnel employed by Deutz included many famous engineers Eugen Langen, Gottlieb Daimler, Wilhelm Maybach, Rudolf Diesel, Robert Bosch and Ettore Bugatti. During World War II, the company was ordered to produce artillery and operated under the name Klochner Humboldt Deutz AG (KHD), commercial vehicles powered by Deutz engines were sold between 1960 and 1980 under the brand name Magirus Deutz.

Deutz's head office is in the Porz district of Cologne and as of 2004 was manufacturing liquid and air cooled diesel engines, the larger engines in the Deutz range were manufactured at Mannheim as MWM Diesel which specialised in marine engines. The MWM Diesel company was sold to Caterpillar in 2010. In 1995 Deutz sold its agricultural machinery business to the Italian company SAME forming SAME Deutz Fahr, in 2012 Volvo became a majority shareholder.

Deutz engines are available in the power range 4 to 500 kW, with air, oil or water cooling and with life expectancy of 20,000 and 30,000 running hours TBO (Time Between Overhauling) on rebuilt and brand-new units.

Deutz-powered air-cooled machines are well-suited for many applications since they cannot freeze or boil-over during normal operation.

Deutz also manufactures oil-cooled engines. These can provide the same power as other engine designs, but in a smaller package, since they don't require the additional space to house a radiator. Deutz also makes engines with a tandem oil cooler/radiator configuration; these also do not require antifreeze or coolant agents.

Deutz also has line of economical liquid-cooled engines.

In 2007, the "Deutz Power Systems" division was sold to 3i, and Deutz AG now concentrates on producing and selling compact engines under the Deutz brand only. They are focusing on manufacturing engines only for the customer, without competing for the entire piece of finished machinery.

Here at Engine Fix UK we cover the vast majority of the Deutz range, we supply all the major mechanical engine parts including pistons, piston rings, liners, gaskets, crank seals, gasket sets, valve train parts, water oil and fuel pumps plus much more.

We show below an outline of the engine range we cover.

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