The Prestolite HYC5005 is a 12V electric hydraulic power pack assembly used in aircraft systems to generate hydraulic pressure for landing gear actuation and hydraulic system operations. It is a self-contained unit consisting of an electric motor, hydraulic pump, and fluid reservoir integrated into a single assembly.

This unit is commonly used in general aviation aircraft (notably Piper models) where it provides hydraulic pressure for gear extension and retraction systems. When activated, the electric motor drives the hydraulic pump, which pressurizes fluid and routes it through the aircraft’s hydraulic lines to actuate gear or related mechanisms.

The “OHC Exchange” designation indicates an overhauled exchange unit, meaning the component is rebuilt, tested, and returned to service under overhaul standards, typically with a core return requirement.

It is designed for reliable operation in critical landing gear cycles and is a rotable aircraft component subject to maintenance intervals and overhaul exchange programs.

Key features include:

Prestolite part number: HYC5005
12V DC electric hydraulic power pack
Self-contained motor, pump, and reservoir assembly
Used for aircraft landing gear hydraulic systems
Common application in Piper aircraft
OHC (Overhauled Exchange) unit configuration
Converts electrical power into hydraulic pressure
Designed for intermittent high-pressure operation
Aircraft rotable component (core exchange required)
Built for certified general aviation hydraulic systems