The Thielert Centurion is a series of diesel cycle aircraft engines for general aviation originally built by Thielert, which was bought by Aviation Industry Corporation of China's Tecnify Motors subsidiary and is currently marketed by Continental Motors.

All Centurion engines are liquid-cooled, turbocharged, and employ a single-lever power control (SLPC) associated with a full authority digital engine control (FADEC).

The high compression ratio of the engine combined with the digitally controlled fuel injection system mirrors similar advances in automotive technology.

[citation needed] The diesel engine's high compression results in better fuel efficiency and the higher operating rpm of the Centurion allows higher power to be developed from a smaller displacement, in comparison to conventional aircraft piston engines (i.e. engines that require leaded aviation gasoline with a very high octane rating).

However, this weight disadvantage is compensated for by the Centurion's lower fuel consumption.