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Lippert 359303 Hydraulic Pump Motor for Power Gear Leveling Systems -- Replacement Motor

Lippert 359303 hydraulic pump motor replacement for Power Gear RV leveling system, vertical and horizontal pump assembly compatible
Lippert Hydraulic Pump Motor for Power Gear Leveling Systems
 
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: $621.44
Part Number: 359303
Manufacturer: Lippert
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Lippert Part 359303 Power Gear Leveling Systems Lippert 359303 Hydraulic Pump Motor -- Power Gear Leveling System Replacement

Keep your RV level and your slides moving with a direct-fit replacement motor for Power Gear hydraulic leveling pump assemblies. This OEM-equivalent service part restores full system function on both vertical and horizontal pump configurations without cutting corners on durability.

Direct-Fit Motor Replacement for Power Gear Hydraulic Systems

When the motor on your Power Gear hydraulic pump fails, the entire leveling system -- jacks, slides, or both -- goes down with it. Lippert part 359303 is the correct replacement motor designed specifically for the pump assemblies used in Power Gear hydraulic leveling and slide-out systems found across a wide range of RV brands and chassis configurations.

Rather than replacing the entire pump assembly, swapping the motor alone is a cost-effective repair that experienced DIYers and RV technicians routinely complete in the field. This motor is compatible with both vertical-mount and horizontal-mount pump configurations, making it one of the more versatile service parts in the Power Gear lineup.

Vertical and Horizontal Fit

Compatible with both vertical and horizontal Power Gear hydraulic pump assembly orientations.

OEM Service Part

Genuine Lippert part number 359303 -- sourced directly from the Power Gear product line.

Motor-Only Replacement

Replaces just the failed motor component, preserving your existing pump body and hydraulic fittings.

Wide RV Compatibility

Fits Power Gear hydraulic systems installed across many Class A, Class C, and fifth-wheel platforms.

What Is Included

This listing covers the hydraulic pump motor assembly (Lippert part 359303). The pump body, reservoir, hydraulic lines, mounting hardware, and fluid are not included. If you need the complete pump assembly or additional service components, verify your system's pump assembly part number before ordering.

Why Replace Just the Motor?

The motor is the most common failure point in Power Gear hydraulic pump assemblies. Symptoms include the pump not activating when the leveling or slide switch is pressed, a clicking relay with no motor response, or a motor that hums but does not spin. If your relay and wiring check out, the motor is the next component to test and the most economical part to replace.

Pump Assembly Compatibility

Lippert 359303 is designed for use with Power Gear hydraulic pump assemblies used in slide-out and leveling jack applications. Power Gear systems are common factory installations on units from manufacturers including Tiffin, Winnebago, Fleetwood, Forest River, and others. To confirm fitment, locate your pump assembly's existing part number label (typically on the pump body or reservoir) and cross-reference with Lippert's current compatibility chart or your RV's service manual.

Vertical vs. Horizontal Pump Orientation

Power Gear pump assemblies are installed in two primary orientations depending on chassis space and OEM configuration. The vertical pump mounts with the motor shaft pointing upward or downward; the horizontal pump mounts with the motor shaft oriented to the side. Part 359303 is designed to service both configurations -- confirm your pump assembly part number matches a 359303-compatible unit before ordering.

Installation Overview

Motor replacement on a Power Gear hydraulic pump is a mechanical service procedure. General steps include:

  • Disconnect shore power and the coach battery to de-energize the system.
  • Relieve hydraulic system pressure following your system's safe bleed-down procedure before disconnecting any hydraulic lines.
  • Remove the mounting hardware securing the motor to the pump body.
  • Disconnect the motor's electrical leads, noting polarity and connector orientation.
  • Install the 359303 motor, re-secure mounting hardware to the pump body's torque specification.
  • Reconnect electrical leads and verify connections are secure and weatherproofed.
  • Restore power and cycle the system to check for proper operation and verify no hydraulic leaks at the pump.

Hydraulic System Precaution

Always depressurize the hydraulic system before removing the motor. Hydraulic fluid under pressure can cause injury. Collect any spilled fluid and refill the reservoir with the correct fluid type after reassembly. Dispose of used hydraulic fluid according to local regulations.

Maintenance Tip

While servicing the motor, inspect the pump coupling, seal around the motor shaft, and hydraulic reservoir for leaks or debris. Contaminated hydraulic fluid accelerates pump wear -- if the fluid appears dark, milky, or contains particles, flush and refill the system as part of this service interval.

Part Identification

ManufacturerLippert Components (Power Gear)
Part Number359303
SKU94-9477
UPC848150045768
Product TypeHydraulic Pump Motor -- Replacement

System Compatibility

System BrandPower Gear (Lippert)
ApplicationHydraulic leveling jacks and hydraulic slide-out systems
Pump Orientations SupportedVertical and horizontal pump assemblies
RV TypesClass A motorhome, Class C motorhome, fifth wheel, select travel trailers with hydraulic systems
System Voltage12V DC (typical Power Gear hydraulic pump configuration)

What Is Included / Not Included

IncludedHydraulic pump motor (359303)
Not IncludedPump body, hydraulic reservoir, hydraulic fluid, mounting hardware, wiring harness, fittings
Hardware NoteReuse existing mounting hardware from pump assembly or source separately if damaged

Common Symptoms This Part Addresses

No motor activationRelay clicks but pump does not run
Motor hums, no movementMotor energizes but shaft does not spin -- seized or open winding
Slow or weak levelingMotor running below rated output due to brush wear or internal wear
Intermittent operationMotor cuts in and out due to failing internal components

Cross-Reference and Sourcing Notes

OEM System BrandPower Gear, now a Lippert product line
Previous Brand NotePower Gear components are fully supported under the Lippert Components parts catalog
Ordering TipConfirm your existing pump assembly part number before ordering to ensure 359303 is the correct motor for your specific pump variant

Important Information -- Read Before Installing

  • Disconnect all power sources (shore power and battery disconnect) before beginning motor removal or installation.
  • Depressurize the hydraulic system completely before loosening any motor or pump connections -- pressurized hydraulic fluid can cause serious injury.
  • This motor is a service component for existing Power Gear pump assemblies -- it does not include the pump body, reservoir, or fittings.
  • Verify your pump assembly part number is compatible with Lippert 359303 before installation. Not all Power Gear pump variants use this motor.
  • After installation, check the hydraulic fluid level and inspect all fittings for leaks before returning the system to service.
  • This product is intended for use by individuals with appropriate mechanical ability and familiarity with hydraulic systems. If in doubt, consult a qualified RV service technician.


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