Stellar Industries 45139 Sheave Assembly 10in x .88 Cable – KP60

If you’re unsure whether this part is compatible with your truck or equipment, please contact us to confirm fitment before purchasing.

The Stellar Industries 45159 Air Actuator is a pneumatic replacement actuator designed for compatible KPAC V42 hydraulic control valves. It features a 1/8-inch NPT air connection and uses pneumatic pressure to shift the attached hydraulic valve section.

This actuator converts an air-control signal into mechanical valve movement. Replacing a worn or damaged actuator helps restore responsive hydraulic function control and correct problems such as air leakage, incomplete valve shifting, or a function that remains stuck in one position.

What This Part Is Used For

The Stellar 45159 air actuator mounts to a compatible KPAC V42 valve and shifts the hydraulic spool when air pressure is applied. It allows the equipment operator to control the connected hydraulic function through the pneumatic control system.

Common Reasons For Replacement

Actuator leaks compressed air
Hydraulic valve does not shift
Controlled function operates slowly
Actuator sticks or fails to return
Internal diaphragm or seals are damaged
Actuator housing is cracked or corroded
Air fitting or 1/8-inch NPT port is damaged
Valve operates manually but not through the air controls

Key Features

Stellar Industries part number 45159
KPAC V42 air actuator
Pneumatic valve-control operation
1/8-inch NPT air connection
Shifts a compatible hydraulic valve spool
Helps restore responsive function control
Replacement for worn or leaking actuators
Designed for compatible Stellar hydraulic equipment