When a quick disconnect fitting in your Lippert slide-out system fails or leaks, using the correct OEM replacement matters. The Lippert 140457 (vendor part #08-3706) is the factory-specified quick disconnect fitting built to match the original hardware in compatible Lippert slide-out assemblies -- no improvised adapters, no guesswork on fitment.
Lippert slide-out systems rely on precision-matched hydraulic and mechanical components. A quick disconnect fitting that doesn't seat correctly can result in fluid leaks, loss of slide-out pressure, or incomplete extension and retraction. Part 140457 replaces the original fitting using the same geometry, sealing interface, and connection standard as the factory part -- so your slide-out system returns to full operation without modification.
This fitting is sourced directly from Lippert and carries their vendor part number 08-3706. If you're cross-referencing Lippert service documentation or a dealer parts list, both numbers identify the same component.
Manufactured to Lippert's original specifications -- not an aftermarket substitute. Part number 140457, vendor #08-3706.
Tool-free disconnect and reconnect for service access. Maintains a secure, leak-resistant connection under normal operating conditions.
Designed for use in Lippert slide-out assemblies where this fitting style is specified. Verify against your rig's slide-out part list before ordering.
Matches the original fitting interface -- no additional adapters or modifications required when replacing a like-for-like failed fitting.
Quick disconnect fittings in RV slide-out systems must match on multiple dimensions at once: thread pitch, body diameter, insert depth, seal geometry, and rated pressure or force capacity. Generic hydraulic fittings from a hardware store may share a thread size but differ on every other dimension, leading to improper seating, accelerated seal wear, or outright leaks under slide-out load.
The Lippert 140457 is the part Lippert's own service network uses. When you're repairing a slide-out that needs to function reliably for thousands of cycles -- in all temperatures, fully loaded -- the OEM component is the straightforward choice.
Lippert produces a broad range of slide-out systems -- electric rack-and-pinion, hydraulic, and cable-driven -- across many years of production. Quick disconnect fittings are not universal across all Lippert slide-out families. To confirm this is the correct part for your rig: