Austro Engine E4
Four-cylinder, four-stroke, aircraft diesel engine
title: "Austro Engine E4" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["austro-engine-aircraft-engines", "aircraft-diesel-engines", "2000s-aircraft-piston-engines"] description: "Four-cylinder, four-stroke, aircraft diesel engine" topic_path: "general/austro-engine-aircraft-engines" source: "https://en.wikipedia.org/wiki/Austro_Engine_E4" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Four-cylinder, four-stroke, aircraft diesel engine ::
::data[format=table title="infobox aero engine"]
| Field | Value |
|---|---|
| name | Austro Engine E4 (AE 300) |
| engine_type | Four-cylinder four-stroke aircraft engine |
| manufacturer | Austro Engine |
| national_origin | Austria |
| first_run | 2008 |
| major_applications | Diamond DA42 |
| number_built | 1,500 |
| :: |
| name = Austro Engine E4 (AE 300) | image = | caption = | engine_type = Four-cylinder four-stroke aircraft engine | manufacturer = Austro Engine | national_origin = Austria | first_run = 2008 | major_applications = Diamond DA42 | produced = | number_built = 1,500 | developed_from = | variants_with_their_own_articles = The Austro Engine E4 (marketed as the AE 300) is a liquid-cooled, inline, four-cylinder, four-stroke, aircraft diesel engine. The engine is manufactured by Austro Engine, an Austrian-based company and subsidiary of Diamond Aircraft Industries.
Development
The engine is based on the Mercedes-Benz OM640 road Diesel engine.
Following Diamond's "General Aviation Single Point of Contact" strategy, Austro Engine started to design a new engine for use on Diamond products in 2005. It received its type certificate in January 2009.
Applications
Specifications (E4)
and start a new, fully formatted line with -- | ref = Austro Engine and type certificate | type = Four-cylinder, four-stroke diesel aircraft engine | bore = 83 mm | stroke = 92 mm | displacement = 1991 cm3 | length = 738 mm | diameter = | width = 855 mm | height = 574 mm | weight = 186 kg | valvetrain = | supercharger = | turbocharger = | fuelsystem = | fueltype = Kerosene and diesel (EN 590) | oilsystem = | coolingsystem = liquid-cooled | power = 168 hp (maximum takeoff and continuous power) at up to 2,300 propeller RPM | specpower = 1.38 hp/cuin | compression = | fuelcon = 35 L/h at 100% power, and :::::::19 L/h at 60% power | specfuelcon = | oilcon = | power/weight = 0.41 hp/lb | designer = | reduction_gear = Gearbox with 1:1.69 ratio | general_other = Mean time between failures: 100,000 h
- Time between overhauls: 1,800 h | components_other = | performance_other = Torque: 512 Nm (maximum)
| see also = | related = | similar aircraft = | lists=
References
References
- "AE300 Facts & Specifications". [[Austro Engine]].
- (2 December 2015). "We Fly: Diamond DA62".
- (2015-04-13). "Type Certificate Data Sheet E.200 Austro Engine E4 series engines". European Aviation Safety Agency.
- "AE300 Technical Data". [[Austro Engine]].
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