Factory part reference A
324869 — Standard 2.5 × 2.5 gear-pack assembly

Standard gear-pack assembly with 15-tooth gear. Confirm the installed rack and original drive configuration before selecting.
View matching part listingIdentify replacement components for Lippert 2.5 × 2.5-inch electric through-frame RV slide-outs. This is a rack-and-pinion through-frame system, not a Schwintek in-wall slide-out. Confirm the rail dimensions, drive type, rack tooth count and actuator model before selecting a replacement.


Use the original manufacturer's illustrated sheets for physical parts orientation and callout letters. Match the physical layout and part numbers to Lippert's original illustrated sheets before ordering.
Lippert's illustrated gear-pack sheet uses callouts A–J. Motors, actuators and switches are covered in separate model-specific component references. Use the factory callouts to identify your original gear pack, then check the actuator and drive references for your configuration.
Use this overview to locate the drive, gearing and support parts on your slide-out.
Actuator motor or center-drive motor
Klauber D-300, Venture 18:1 and Venture 28:1 are distinct configurations. Identify gearbox marking before shopping.
Cross-shaft and rack-drive arms
The cross-shaft transfers motion; both sides must use the correct rack tooth form and arm assembly.
Gear pack and spur gear
Standard 324869 and heavy-duty 123356 packs differ. Gear 122739 has a separate 18-tooth profile.
Roller, shaft, wear tab and stop can
Select rear-roller or wear-tab configuration from the factory drawing, not just the rail dimensions.
Switch, harness and manual override
Switch and actuator connections depend on the original drive and wiring generation.
Lippert lists 324869 as the standard 2.5 × 2.5 gear-pack assembly and 123356 as the heavy-duty assembly; both currently include a 15-tooth gear. Some older installations require a separate 18-tooth gear (122739, 12 DP / 14.5° pressure angle). Do not swap a 15-tooth and 18-tooth configuration, or a standard and heavy-duty pack, without matching the original rails, gear specifications and manufacturer parts list.
Factory part reference A

Standard gear-pack assembly with 15-tooth gear. Confirm the installed rack and original drive configuration before selecting.
View matching part listingFactory part reference E

18 teeth, 12 DP / 14.5° pressure angle. The factory requires a specific gear-pack replacement procedure; not a drop-in replacement for a 15-tooth gear.
View matching part listingFactory part reference F

Factory identifies this wear tab for certain inner-arm configurations without a rear roller.
View matching part listingFactory part reference G

Compare the original/current wear-tab designs with the factory illustration before replacing.
View matching part listingFactory part reference H

Steel stop can used at the appropriate travel-stop location. Match the exact system.
View matching part listingFactory part reference Drive

Manufacturer's older component list identifies this as a D-300 motor. Do not select only by voltage.
View matching part listingFactory part reference Drive

18:1 motor-only reference. Check the original actuator gearbox and mounting-bolt configuration.
View matching part listingFactory part reference Drive

Separate 28:1 motor model; it is not interchangeable with an 18:1 motor by appearance.
View matching part listingFactory part reference Actuator

Actuator-only assembly. Confirm overall travel length and paired motor before replacement.
View matching part listingFactory part reference Actuator

Specified high-speed 18:1 actuator/motor assembly in the historical reference; verify existing speed and length.
View matching part listingFactory part reference Drive

Replacement gearbox gear set for the 18:1 family; separate from the 28:1 set 191073.
View matching part listingFactory part reference Controls

Manufacturer-listed white switch-kit assembly. Match harness polarity and original control configuration.
View matching part listingStandard and heavy-duty 15-tooth spur gears, respectively; factory specifies 10 DP / 20° pressure angle for these versions.
Rear roller shaft and rear roller, chosen only for gear-pack assemblies using that arrangement.
Cross-shaft kit, outer shaft and inner shaft, respectively. Verify original dimensions and connection style.
Drive-arm and rack variants. Tooth profile and 15-tooth versus 18-tooth system must be established.
Use the original part numbers and factory drawing when identifying these additional gears, rollers and drive components.
Use the Lippert 2.5 × 2.5 electric through-frame support library, Electric Through-Frame service manual (CCD-0001614) and current owner manual (CCD-0001613). The manufacturer has updated its owner manual, and historical exploded parts sheets may show superseded components. Confirm the serial number and current service parts before purchasing.
Safety: The slide room is heavy, and the gear pack and rack create pinch points. This is a parts-identification page, not instructions to release a loaded actuator or support a room. Use a qualified RV service technician for structural work.
For the different smaller system, see the 2 × 2 electric through-frame parts guide.
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