The Hartzell DOFF10300BR is a 28V, 60A belt-driven aircraft alternator designed for certified general aviation electrical systems. It is an overhauled (OHC) exchange unit, restored and tested to aviation standards for reliable operation in flight environments.

This alternator is based on the Ford-style aviation alternator platform and is used to provide stable electrical power for avionics, lighting, radios, and battery charging in 28V aircraft systems. The belt-drive configuration makes it suitable for engines using V-belt accessory drives, offering straightforward installation and maintenance.

Commonly installed as a direct replacement unit in compatible Cessna and Beechcraft aircraft, it is designed for continuous-duty operation and consistent voltage regulation under varying electrical loads.

Key features include:

28V DC output, 60A rated capacity
Belt-driven (V-belt) configuration
Overhauled exchange unit (OHC)
Aviation-certified rebuild and testing
Ford-style aircraft alternator design
Stable power for avionics and aircraft systems
Compatible with select GA aircraft (e.g. Cessna / Beechcraft systems)
Designed for continuous-duty flight operation