A complete, ready-to-install IRC (Integrated Relief Circuit) assembly engineered by Lippert for RVs equipped with two hydraulic slide-out rooms. Every fitting required for a proper dual-slide hydraulic circuit is included in the box -- no hunting for individual components or guessing at thread sizes.
Lippert's hydraulic slide-out systems rely on a precisely balanced fluid circuit to extend and retract each room smoothly and evenly. The IRC (Integrated Relief Circuit) assembly is the heart of that system, managing flow distribution between the two slide cylinders and protecting the circuit from overpressure events. Part 127244 packages the 2-Room Standard MIRC unit together with every mating fitting it needs, so the installation is fully self-contained.
This assembly is the OEM-specified kit for double hydraulic slide rooms on a wide range of Lippert-equipped coaches, fifth wheels, and motorhomes. If you are rebuilding a damaged hydraulic slide circuit or replacing a leaking MIRC manifold, 127244 brings the complete set of fittings in one order rather than sourcing each piece separately.
Every fitting required to plumb the 2-Room MIRC into a dual-slide circuit is included. Nothing is sold separately.
All parts carry Lippert part numbers and are built to the same specifications as factory-installed hardware.
The 2-Room Standard MIRC (134798) distributes hydraulic flow evenly to both slide cylinders and provides integrated pressure relief.
All fittings are 04-04 (1/4 in. port x 1/4 in. tube) JIC/ORB-compatible fittings consistent across the entire Lippert slide-out hydraulic platform.
The Manifold Integrated Relief Circuit (MIRC) is a compact hydraulic manifold that sits between the pump and the slide-out cylinders. It performs two critical functions: it splits pressurized fluid to both slide rooms simultaneously so they travel at matched rates, and it contains internal relief valves that prevent over-extension or over-pressure from damaging seals, cylinders, or the room structure itself.
The 2-Room Standard MIRC (Lippert 134798) used in this kit is the direct-replacement unit for coaches originally built with Lippert's double hydraulic slide platform. It is not a universal aftermarket part -- it is the Lippert-sourced manifold designed to integrate with factory hydraulic lines and mounting positions.
Part 127244 is designed for Lippert-brand hydraulic slide-out systems configured with two slide rooms. It is commonly found as the OEM assembly on travel trailers, fifth wheels, and motorhomes manufactured across multiple brands using the Lippert double hydraulic slide platform. If your coach has two hydraulically operated slide rooms and Lippert running gear, this is the correct IRC assembly.
If you have a single-room hydraulic slide system, or a rack-and-pinion / electric slide system, this assembly does not apply. Verify your system type by checking the slide-out actuator style (hydraulic cylinder vs. electric motor drive) and the number of rooms before ordering.