Jacobs R-755

R-755 / L-4
Jacobs R-755 on display at the Evergreen Aviation & Space Museum
Type Radial engine
Manufacturer Jacobs Aircraft Engine Company
First run 1933

The Jacobs R-755 (company designation L-4) is a seven-cylinder, air-cooled, radial engine for aircraft manufactured in the United States by the Jacobs Aircraft Engine Company.