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Lippert 136148 Restricted Red Valve Body for Hydraulic Slide-Out Systems

Lippert 136148 Valve Body Restricted Red Hydraulic Slide Out Systems

: $97.51

Part Number: 136148
Manufacturer: Lippert
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Lippert Part No. 136148 Hydraulic Slide-Out Lippert Restricted Red Valve Body -- Hydraulic Slide-Out Systems

The Lippert 136148 is the OEM-spec restricted valve body used in Lippert hydraulic slide-out systems. The red color-coding identifies it as the restricted-flow variant, which meters hydraulic fluid to deliver controlled, steady room movement rather than abrupt or uneven extension and retraction. If your slide-out is moving erratically, too fast, or not at all due to a failed valve body, this is the correct replacement component to restore proper operation.

Flow Control Where It Counts

Hydraulic slide-out systems rely on precise fluid metering to extend and retract the room at a safe, consistent rate. The valve body is the key component that governs this flow. Lippert uses color-coded valve bodies to distinguish flow ratings -- the red designation identifies this as a restricted unit, meaning it limits fluid volume per cycle to protect the room mechanism from pressure spikes and over-extension.

This is a direct OEM replacement for Lippert-brand hydraulic slide-out manifolds. Using the incorrect valve body -- unrestricted in a restricted application, or vice versa -- can result in jerky movement, incomplete travel, or mechanical damage to the slide-out assembly.

Restricted Flow Design

Meters hydraulic fluid to produce smooth, controlled room extension and retraction without pressure spikes.

Red Color Identification

Red body makes it easy to confirm correct valve type at a glance during installation or service.

OEM Lippert Fitment

Engineered to Lippert hydraulic manifold specifications for direct, plug-in replacement without modification.

Durable Construction

Built to withstand the pressure cycles and hydraulic fluid exposure typical of full-time and heavy seasonal RV use.

Why Valve Body Type Matters

Lippert hydraulic slide-out manifolds use individual valve bodies to control each function -- extend, retract, and sometimes leveling circuits. The restricted valve body limits flow rate to the slide cylinder, preventing the room from slamming out or retracting too quickly under full pump pressure. A failed or incorrect valve body is one of the most common causes of:

Slide-out that extends or retracts unevenly or in jerks
Room that travels only partway and stalls
Slide that creeps inward on its own (valve not seating correctly)
Audible hydraulic bypassing or whining under load

Direct OEM Replacement: Part number 136148 is a Lippert factory component. You are installing the same valve body used on the original production manifold -- no shimming, adapting, or flow-rate guessing required.

Identifying Your Valve Body

Before ordering, confirm the existing valve body on your manifold is red and carries part number 136148 or is the restricted position in your manifold block. Lippert hydraulic manifolds typically have multiple valve body positions; each position may call for a different flow rating. Replacing a restricted valve with an unrestricted one will change slide behavior and can damage the room frame or seal assembly over time.

Tip: Photograph your existing manifold before disassembly. Note the color and position of each valve body so you can confirm you are ordering the correct replacement for each circuit.

Installation Overview

Valve body replacement on a Lippert hydraulic manifold is a straightforward service job with basic hand tools. General procedure:

Relieve hydraulic system pressure before opening any manifold port
Remove the retaining hex nut or cap from the valve body position
Extract the old valve body and inspect the manifold bore for debris or scoring
Thread the new 136148 valve body into position and torque to manifold specification
Cycle the slide-out and check for smooth operation and no leaks

Maintenance Tip: When servicing the valve body, inspect the O-rings and check hydraulic fluid level and condition. Contaminated fluid is a leading cause of premature valve body failure. Replace fluid per Lippert's recommended service interval.

Part Identification

Manufacturer	Lippert Components
Part Number	136148
SKU	045-136148
Component Type	Valve Body -- Restricted
Color Code	Red (restricted flow)

Application

System Type	Hydraulic Slide-Out
Fitment	Lippert hydraulic slide-out manifolds requiring restricted valve body
Function	Meters hydraulic fluid flow to slide-out cylinder
Replaces	Failed or worn Lippert 136148 restricted valve body

What Is Included

Included	1x Lippert 136148 restricted red valve body
Not Included	Hydraulic fluid, manifold, fittings, hoses, or other valve bodies

Compatibility Notes

Brand Compatibility	Lippert hydraulic slide-out systems only
Valve Position	Restricted (red) position on manifold block
Not Compatible With	Electric slide-out motors, HWH air systems, or non-Lippert manifolds

Important Information

This is the restricted (red) valve body. Installing an unrestricted valve in a restricted position will alter slide-out speed and may cause mechanical damage to the room assembly or seals.
Always relieve hydraulic system pressure completely before removing any valve body from the manifold. Pressurized hydraulic fluid can cause serious injury.
Confirm part number 136148 and red color coding match your existing valve body before installation. Lippert manifolds use multiple valve body types; incorrect substitution affects operation.
This part is designed for Lippert hydraulic slide-out manifolds only. It is not a universal valve body and will not adapt to non-Lippert systems without verification.
Hydraulic fluid, manifold assembly, hoses, and fittings are not included. This listing covers the valve body only.

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