Stellar 125733 Extension Cylinder Assembly for 12621 HSS Crane
$5,896.00
Excluding Sales Tax
Compatibility verification required. This item cannot be purchased online. Please call One Stop Truck & Equipment at 916-334-3000 to order.
The Stellar Industries 125733 Extension Cylinder Assembly is an OEM hydraulic cylinder designed for compatible Stellar 12621 HSS telescopic crane systems.
This heavy-duty hydraulic cylinder provides the force required to extend and retract the crane’s telescoping boom sections. Designed for use within the applicable HSS extension boom assembly, it helps control boom reach smoothly and reliably during lifting and positioning operations.
Replacing a leaking, bent, worn, or damaged extension cylinder helps restore proper telescoping operation and dependable crane performance.
What This Part Is Used For
The Stellar 125733 extension cylinder assembly is installed within the extension boom system of compatible Stellar 12621 HSS cranes. Hydraulic pressure extends and retracts the cylinder to move the telescoping boom sections and adjust the crane’s working reach.
Common Reasons For Replacement
Hydraulic cylinder is leaking
Cylinder rod is bent, scored, or damaged
Boom will not fully extend or retract
Telescoping movement is slow or inconsistent
Boom drifts from its commanded position
Cylinder seals have excessive wear
Hydraulic fittings or plumbing are damaged
Cylinder binds during extension or retraction
Mounting points are worn or damaged
Extension boom assembly is being rebuilt or repaired
Key Features
Stellar Industries part number 125733
OEM extension cylinder assembly
Designed for compatible Stellar 12621 HSS cranes
Used with extension boom assembly 125509
Heavy-duty hydraulic construction
Controls telescoping boom extension and retraction
Integrated hydraulic plumbing and connection points
Designed for demanding truck-mounted crane applications
Helps restore proper boom reach control
OEM replacement Stellar crane hydraulic component