When your hydraulic slide-out stops moving or moves sluggishly, the power unit is often the culprit. The Lippert 141111 is a direct-replacement hydraulic power unit assembly with a self-contained 2-quart reservoir, designed for compatible Lippert hydraulic slide-out systems. It replaces Lippert kit 643150 and restores full slide-out operation without the guesswork of sourcing individual components.
Lippert hydraulic slide-out systems power millions of RV slide rooms across Class A motorhomes, fifth wheels, and travel trailers. Over time, seals wear, motors weaken, and the pump assembly loses efficiency -- resulting in slow, noisy, or non-functional slide rooms. The 141111 power unit brings the full pump, motor, and 2-quart reservoir together in a single pre-assembled unit that drops into place of the original.
This unit is identified as the replacement for Lippert kit 643150, making it the correct choice when sourcing a like-for-like swap on compatible rigs. If you have the original part tag or Lippert system documentation confirming your rig uses kit 643150, this is the correct assembly.
Pump, motor, and 2-quart reservoir integrated in one unit -- no separate reservoir sourcing required.
Replaces Lippert kit 643150 for compatible hydraulic slide-out systems. Matches original mounting and port locations.
Designed for 12-volt DC RV electrical systems. Compatible with standard RV battery banks and chassis wiring.
OEM-style construction ensures correct flow rates and operating pressure for Lippert slide cylinder demands.
Replacing the complete power unit assembly -- rather than individual seals or motor components -- eliminates diagnostic uncertainty and restores factory-spec hydraulic performance. For a system that gets heavy use at every campsite, a full unit swap is the most reliable fix and typically takes less time than rebuilding the original pump.
This unit is designed for Lippert hydraulic slide-out systems that originally used kit 643150. Lippert produced multiple hydraulic power unit configurations across different rig generations. Cross-reference your existing unit's part number or the coach manufacturer's parts breakdown before ordering. Key confirmation points:
This power unit ships without hydraulic fluid. You will need to refill the reservoir with the correct Dexron III ATF or Lippert-approved hydraulic fluid after installation. Use only the fluid type specified for your system -- mixing fluid types can damage seals and void the replacement unit.