The Lippert 180461 is a direct OEM-style replacement head assembly designed for 2.5 x 2.5 hydraulic through-frame slide-out systems. If your slide-out is binding, leaking hydraulic pressure at the head, or the room bar has bent or worn beyond service, this assembly restores proper slide function without requiring a full system overhaul.
Lippert's V-Tech slide-out system is one of the most common hydraulic through-frame designs found in mid- to large-size travel trailers and fifth wheels, particularly those built on Keystone platforms. The head assembly is the working heart of that system -- it houses the hydraulic cylinder interface and the room bar that physically drives the slide room in and out.
Over time, the room bar can bend from overloading, side-loading, or operating on unlevel ground, and the head assembly seals and components wear with repeated cycling. Replacing the entire head assembly as a unit is faster and more reliable than sourcing and rebuilding individual internal components.
Engineered to drop into existing 2.5 x 2.5 hydraulic through-frame slide-out track systems with no modification required on compatible rigs.
Ships with a 12-inch room bar pre-attached. No need to source the bar separately -- the assembly arrives ready for installation.
Carries Keystone RV part number 452937, making it straightforward to verify fitment against your coach's OEM parts list.
At just 6 lbs., the head assembly is manageable for a one- or two-person installation without heavy lifting equipment.
Lippert's V-Tech hydraulic through-frame slide system routes the slide mechanism through the main frame rail of the RV rather than mounting hardware below or above the frame. The 2.5 x 2.5 designation refers to the cross-section dimension of the slide tube -- 2.5 inches by 2.5 inches. This geometry is specific: using a head assembly sized for a different tube cross-section will not align or seal correctly.
The head assembly connects the hydraulic ram output to the room bar, translating hydraulic pressure into the linear motion that moves the slide room. Proper sealing at the head is critical -- a compromised head assembly can cause slow extension, incomplete retraction, or hydraulic fluid intrusion into the slide tube.
This is a component-level replacement intended for technicians or experienced DIY owners comfortable working with hydraulic slide systems. General steps for this type of assembly include:
Room Bar Measurement Chart