Rotax 912 specifications, Rotax 914 aircraft engine specifications.

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Rotax Logo 914 Engine Picture


4-cyl., 4-stoke liquid cooled engine with opposed cylinders, with turbo charger, dry sump forced lubrication with separate 3 liter (.8 gal US) oil tank, automatic adjustment by hydraulic valve tappet, 2 CD carburetors, mechanical diaphragm pump, electronic dual ignition, electric starter, integrated reduction gear i = 2.273

Version Performance Torque max RPM
914 Engine Performance Graph
kW hp 1/min Nm ft. lbf. 1/min 1/min
914 UL 74.5 100 5500 123 91 4800 5800
max. 5 min. 85.7 115 5800

914 Engine Torque Graph
Bore Stroke Displacement Compression Ratio
79.5 mm 3.13 in. 61mm 2.4in 1211.2cm3 73.91 cu. in. 9.0:1

Fuel Oil Cooling liquid
MON 85 RON 95* API SF or SG 100% BASF Anticorrosion
914 Fuel Consumption Graph

*leaded or unleaded or AVGAS 100 LL

Ignition unit Ignition timing Spark plug
DUCATI Doppel CDI 6 degree up to 900 1/min / above 26 degree ROTAX PART No 897 255

Generator performance RPM Voltage
250W DC 5500 1/min 13.5 V

WEIGHT (Standard) kg lb
Engine with gearbox i = 2.273 61.1 134.7
Intake silencer 1.1 2.4
Exhaust system 4.0 8.8
Slipping clutch 1.1 2.4
Engine truss assembly 2.0 4.4
WEIGHT (Options) kg lb
Oil radiator 886 025 0.5 1.1
Radiator 995 697 1.0 2.2
Air cleaner 825 710 0.15 0.3
Air guide hood 975 790 0.8 1.8
Vacuum pump 0.8 1.8
Hydraulic propeller governor 2.7 5.9
Rectifier regulator 0.1 0.2
Instrument FLYdat 0.5 1.1
Recall instrument RDAT 1.0 2.2


This aircraft engine does not comply with federal safety regulations for standard aircraft. This engine is for use in experimental and ultralight uncertified aircraft only and only in circumstances in which an engine failure will not compromise safety. Before operating the engine read operator's manual. Information is available from you local authorized ROTAX distributor.

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