Keep your four slide-out rooms moving reliably with this direct-replacement hydraulic manifold and valve assembly from Lippert. Designed specifically for standard MIRC (Motor In Ram Cylinder) hydraulic slide-out systems, this assembly restores proper fluid routing and valve function without requiring you to source individual components. The mounting plate is not included, making this a clean drop-in for rigs where the plate is undamaged and reusable.
The hydraulic manifold is the central routing hub of your slide-out system, directing pressurized fluid to each room's extend and retract circuits. When a manifold develops internal leaks, sticking valves, or cracked passages, the result is sluggish slides, uneven extension, or complete failure to move. Replacing the manifold and valve assembly as a unit -- rather than attempting to rebuild individual solenoid valves -- is the most reliable path back to full operation.
Lippert part 256072 is built for the standard MIRC platform found across a wide range of fifth wheels, travel trailers, and motorhomes. The MIRC design integrates the hydraulic actuator directly into the slide ram, so manifold compatibility with the correct port configuration is critical. This assembly is engineered to match that layout for four-room configurations.
Provides dedicated hydraulic circuits for extend and retract on up to four individual slide-out rooms in a standard MIRC setup.
Engineered to match Lippert MIRC manifold port layout and valve spacing -- no drilling, re-routing, or adapter fittings required.
Manifold ships with solenoid valves pre-installed. No separate valve sourcing needed for a complete swap.
Mounting plate is sold separately. Reuse your existing undamaged plate or source Lippert's matching bracket independently.
MIRC stands for Motor In Ram Cylinder -- a Lippert hydraulic slide-out architecture where the hydraulic pump motor is integrated into the ram cylinder itself rather than being a remote unit. This design is common on coaches built from the mid-2000s onward and is found across many Forest River, Coachmen, Keystone, and other OEM brand platforms that spec Lippert undercarriage components.
The manifold in a MIRC system controls which rooms extend and retract, and in what sequence. Solenoid valves on the manifold open and close hydraulic circuits in response to switch commands from the cab or a wall panel. A failed solenoid or cracked manifold body can cause one room to refuse commands while others operate normally -- a key diagnostic indicator that the manifold assembly needs replacement.