Avia M 337

M 337
Right side view of a Walter M337; the front cylinder is hidden by the engine cowling
Type	six-cylinder inverted inline piston engine
National origin	Czechoslovakia
Manufacturer	Walter Aircraft Engines/Avia/LOM
Major applications	Let L-200 Morava Zlín Z 43

The Avia M 337 (originally designated the Walter M337) is an inverted six-cylinder air-cooled inline engine. It was developed by the Czechoslovak company as a six-cylinder derivative of the four-cylinder M 332 engine, going into production in 1960. An unsupercharged version of the M 337 is designated M 137. Production transferred to Avia in 1964, and to Letecke Opravny Malesice (LOM) in 1992.

Data from Jane's All The World's Aircraft 1980-81

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