Keep your hydraulic slide-out operating smoothly with this OEM-spec replacement flow divider block from Lippert. Designed specifically for double EIRC hydraulic slide-out systems, this block ensures balanced hydraulic flow to both sides of the slide mechanism -- critical for even extension and retraction without binding or racking.
The flow divider block is the hydraulic heart of any double EIRC slide-out system. It splits and meters hydraulic fluid evenly between the two cylinders that drive the slide room in and out. When this block wears, leaks, or fails, one side of the slide can move faster than the other -- leading to racking, binding, seal damage, and potential structural stress on the room itself.
The Lippert 140558 is a direct-fit replacement that restores factory-correct flow balance. If your slide is moving unevenly, extending or retracting in a jerky or lopsided manner, or you're seeing hydraulic fluid leaking from the divider block area, this part is the likely fix.
Engineered as a factory replacement for double EIRC hydraulic slide systems -- no modifications required for compatible rigs.
Splits hydraulic pressure evenly between both slide cylinders, preventing racking and ensuring square, even slide travel.
At just 1.5 lbs, this block installs without adding meaningful weight to your hydraulic system assembly.
Covered by Lippert's limited 1-year manufacturer warranty for defects in materials and workmanship.
In a double EIRC (Equal In, Related Cylinders) hydraulic slide-out system, the flow divider block receives pressurized hydraulic fluid from the pump and distributes it equally to the left and right hydraulic cylinders. The "double" designation means this block serves two slide rooms or a dual-cylinder single room configuration. Without precise, equal flow distribution, the cylinders extend at different rates -- creating the racking condition that strains slide room seals, floors, and walls.
If you're troubleshooting an uneven slide, always inspect the flow divider block for internal wear, cracking, or external leaks around the fittings before replacing cylinders or the pump. In many cases, the divider block is the root cause.
Replacing the flow divider block requires depressurizing the hydraulic system completely before disconnecting any lines. Have rags and a drain pan on hand -- residual fluid in the lines will spill when fittings are broken loose. Torque all hydraulic fittings to specification after installation and bleed the system before operating the slide. Check for leaks at all port connections after the first full cycle.
This block is designed for Lippert double EIRC hydraulic slide-out systems found across a wide range of fifth wheels, travel trailers, and motorhomes from multiple manufacturers. If your rig uses a Lippert hydraulic slide system with dual cylinders and a central flow divider block, the 140558 is the correct OEM replacement part. Confirm your existing part number before ordering to ensure a match.