Stellar Industries 53941 Boballee Rephasing Cylinder – 2.51" x 42"

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 53941 Hydraulic Cylinder is a Boballee rephasing cylinder designed for compatible K-PAC hydraulic equipment. Identified as K-PAC cylinder 21-1015, it features a 2.51-inch bore and a 42.00-inch stroke.

Its rephasing design helps synchronize multiple cylinders operating in the same hydraulic circuit. When the cylinders reach the end of their stroke, internal rephasing passages allow the system to equalize cylinder positions and maintain coordinated equipment movement.

What This Part Is Used For

The Stellar 53941 cylinder provides controlled linear force while helping paired or series-connected cylinders remain synchronized. It supports smooth, even movement and allows the hydraulic circuit to correct position differences at the end of the cylinder stroke.

Common Reasons For Replacement

Hydraulic fluid leaks from the cylinder
Connected cylinders move unevenly
Cylinders no longer return to equal positions
Rod is bent, scored, or corroded
Cylinder drifts or fails to hold position
Rephasing operation no longer equalizes the system
Extension or retraction becomes slow or jerky
Barrel, ports, or mounting points are damaged

Key Features

Stellar Industries part number 53941
K-PAC cylinder number 21-1015
Boballee hydraulic cylinder
Rephasing cylinder design
2.51-inch cylinder bore
42.00-inch stroke
Helps synchronize multiple cylinders
Supports smooth and even hydraulic movement
Allows position equalization at the end of stroke
Heavy-duty mobile hydraulic construction