Lippert 115128 Gas Pump and Power Unit for Damon Leveling Systems -- Replaces 184053

Stop Waiting on a Level Coach -- Get the Right Pump the First Time

When a Damon hydraulic leveling system goes soft -- jacks that won't hold position, sluggish slide operation, or a pump motor that groans and quits -- the problem often traces back to the pump and power unit itself. Lippert part 115128 is the replacement assembly built for exactly this application, matching the original hydraulic pump and motor configuration used in Damon coaches.

This unit does double duty: it generates the hydraulic pressure that extends and retracts your leveling jacks, and houses the motor and reservoir interface that keeps the entire system fed. Because it replaces the earlier 184053 directly, you're not adapting or modifying -- you're restoring the system to factory specification.

What This Assembly Replaces

Lippert 115128 directly supersedes Lippert part 184053. If your service records show 184053 as the installed pump unit, this is the current replacement. The Thor cross-reference 0246151 may appear on Damon dealer invoices or warranty documentation for the same unit.

Typical Application -- Damon Hydraulic Leveling

Damon motorhomes equipped with Lippert-sourced hydraulic leveling systems use a centralized pump and power unit to actuate multiple jacks from a single hydraulic circuit. The pump motor pressurizes hydraulic fluid, the manifold directs flow to individual jack cylinders, and the power unit houses the motor, pump body, and reservoir connections in a single serviceable assembly.

Common failure symptoms that point to this unit:

• Leveling jacks extend slowly or fail to reach full extension
• Jacks retract partially or drift down over time
• Pump motor runs but system pressure does not build
• Audible grinding or cavitation from the pump during operation
• Fluid loss at the pump body or power unit connections

Installation Overview

This is a drop-in power unit replacement intended for technicians or experienced DIY owners comfortable working with 12V hydraulic systems. The general process involves:

• Relieving system pressure and draining or capturing hydraulic fluid from the reservoir and lines
• Disconnecting the 12V power leads and any ground connections at the pump motor
• Removing hydraulic line fittings at the pump body -- label lines before removal
• Unbolting the pump and power unit assembly from its mounting bracket
• Installing the new 115128 unit, using the included O-rings at all hydraulic connections
• Reconnecting hydraulic lines, electrical leads, and refilling the reservoir with the correct Dex/Merc-compatible hydraulic fluid to the full mark
• Cycling the system through a full extend/retract sequence and checking for leaks

Part Identification

Physical Specifications

Electrical

Included in the Box

Warranty and Support