Fifth-Wheel Landing Gear Motors, Switches & Gearbox Parts Diagram

Use this fifth-wheel electric landing-gear motor and gearbox identification guide to distinguish standard versus high-speed motor assemblies, switch-only replacements, and motor-plus-switch kits across Stromberg Carlson, Venture and Lippert/Tuson systems. Compare the original part numbers and package descriptions below to distinguish standalone motors from motor-and-switch kits and complete landing-gear systems.

Capacity and safety: Stromberg Carlson's current single-power LG-1 through LG-4 systems are rated 5,000 lb for both legs combined, not 5,000 lb per leg. Factory 80/150 RPM data apply under stated motor load conditions, not as permission to interchange a motor between gearboxes. Confirm the installed motor model, mounting bolt pattern, shaft coupling, gearbox and controller wiring before ordering.

Landing-gear motors, switches and gearbox photographs

The product photographs show standard and high-speed drive motors, switches, external gearboxes and supporting hardware. Select a photo for the matching listing, and verify the installed drive system before ordering.

Stromberg Carlson LG-142178 Standard-speed motorStromberg Carlson LG-142178Standard-speed motor80 RPM; 30 A at 5,000-lb system load in current catalogView exact NewRVParts productStromberg Carlson LG-242800 High-speed motorStromberg Carlson LG-242800High-speed motor150 RPM; 30 A at 5,000-lb system loadView exact NewRVParts productStromberg Carlson LG-145236 IP-rated switch with harnessStromberg Carlson LG-145236IP-rated switch with harnessIP66 switch; motor not includedView exact NewRVParts productStromberg Carlson LG-179015 External reduction gearboxStromberg Carlson LG-179015External reduction gearboxBlack aluminum gearboxView exact NewRVParts productLippert 276602 External replacement gearboxLippert 276602External replacement gearboxGray aluminum universal-mount gear boxView exact NewRVParts productLippert 700052 Footpad and pin kitLippert 700052Footpad and pin kitSeparate landing-gear foot with clevis/bridge pinView exact NewRVParts productLippert 113511 Weld-on leg saddle bracketLippert 113511Weld-on leg saddle bracketOne replacement mounting bracketView exact NewRVParts product

Where each motor, gearbox and switch belongs

Manufacturer reference 1Stromberg Carlson official landing gear motor, gearbox, cross-shaft and switch photographs from 2024 manufacturer installation manualOpen original manufacturer PDF
Original manufacturer photographs — assembly and motor hardware (2024 manual, page 3). The official Stromberg Carlson instruction sheet shows the actual lead-leg gearbox, motor hardware, cross shaft and switch. This is a model-family assembly reference, not a wiring substitute. View original full-size factory installation photos if the embedded viewer is unsupported.
Show supplementary simplified motor/gearbox position drawing
Fifth-wheel landing gear electric drive and switch component locator Original conceptual identification map: A factory standard 80 RPM or high-speed 150 RPM motor feeds B external gearbox 179015, C lead leg, D telescoping cross shaft to E follow leg. F wall switch and harness connects the motor control. G footpad and H chassis bracket are different products. This is not a wiring or installation schematic. A · MotorB · Gearbox C · Lead legE · Follow leg D · Cross shaftF · Switch H · Bracket G · Foot Component overview. Refer to the factory instructions for wiring and installation.
The lettered groups help identify major components. They are not manufacturer part-callout numbers. Stromberg's installation manual (PDF) has the actual gearbox and motor mounting photographs and the original switch wiring diagram.

Stromberg Carlson motor and kit identification

Manufacturer reference 2Stromberg Carlson 2026 manufacturer catalog original product photographs for motors LG-142178, LG-242800, kits LG-217884 and LG-242728, switch LG-145236, and aluminum gearbox LG-179015Open original manufacturer PDF
Original Stromberg Carlson manufacturer product-photo plate — 2026 catalog, printed page 22. It shows individually numbered motor-only SKUs, combined motor-and-switch kits, the IP-rated switch, the gearbox and other landing-gear components. The separate LG-217884 (standard) and LG-242728 (high-speed) kits are not interchangeable merely because the pictured switch looks the same. Open full-size official product photo and part-number chart. This full catalog may load more slowly on mobile; the exact store images above remain available independently.
Show supplementary illustrated standard/high-speed motor comparison
Landing gear motor and control product numbers: standard, high-speed and Tuson Three family panel illustration. Stromberg standard 80 RPM LG-142178 motor, kit LG-217884 when combined with IP-rated LG-145236 switch. Stromberg high-speed 150 RPM LG-242800, kit LG-242728 with the switch. Lippert Tuson high-speed 141893 motor, kit 134905 with Tuson 141892 switch or 162895 with IP-rated 145236 switch. Motor types cannot be substituted merely by RPM. Stromberg standard80 RPM LG-142178 motor onlyLG-217884 kit+ LG-145236 switch5,000-lb system, 30 A Stromberg high speed150 RPM LG-242800 motor onlyLG-242728 kit+ LG-145236 switch5,000-lb system, 30 A Lippert TusonHigh speed 141893 motor only134905 / 162895 kits+ 141892 Tuson switchor + 145236 IP switch5,000 lb per Lippert Manufacturer kit composition diagram, not motor mechanical fitment or electrical wiring guidance
Manufacturer kit contents redrawn as a simplified identification chart. The brands' motor housings, exact drive couplers and switch wiring must be verified independently; a matching speed or shared number suffix does not prove mechanical interchange.

Motor-only versus motor-and-switch matrix

The maker defines separate product numbers for motors with and without electrical controls. Confirm the motor number, electrical controls and installation requirements before selecting a replacement.

Manufacturer number What it is Drive OEM application Package / cautions
LG-142178 Standard-speed single motor 80 RPM LG-1 and LG-2 Stromberg factory 5,000-lb system
LG-242800 High-speed single motor 150 RPM LG-3 and LG-4 Stromberg factory 5,000-lb system
LG-217884 Standard motor + IP switch 80 RPM motor Factory parts package LG-142178 motor + LG-145236 switch
LG-242728 High-speed motor + IP switch 150 RPM motor Factory parts package LG-242800 motor + LG-145236 switch; confirm complete kit contents
142178 Lippert Venture motor only Standard Lippert Power Landing Gear No switch in factory package; confirm original system rating
141893 Lippert Tuson motor only High speed Original Tuson configuration 5,000 lb per Lippert; confirm original system rating
134905 Tuson motor + switch/harness kit High speed Original Tuson configuration 141893 motor + 141892 Tuson switch
162895 Tuson motor + IP switch kit High speed Original Tuson configuration 141893 motor + 145236 IP-rated switch
141892 Tuson switch and harness Not a motor Original Tuson configurations Switch and harness only; motor not included
LG-145236 IP-rated switch and harness Not a motor Stromberg LG-1 through LG-4 Factory IP66 switch alone

For Stromberg, LG-142178 has a published unloaded leg retraction rate of approximately 4¼ in/min, versus LG-242800 at approximately 5½ in/min. Their 80/150 RPM values are motor performance figures measured at a specified loading condition; actual jack speed depends on the installation and mechanical load.

LG-1 through LG-4 motor assignments

This compact table maps only the factory-matched Stromberg system arrangements from INS-2914-C, January 26, 2024. The leg lengths and common gearbox are shown so a customer does not infer replacement fitment from speed alone.

System Outer legs Original motor Speed Original switch Factory gearbox
LG-1 29½-in lead/follow LG-142178 80 RPM LG-145236 LG-179015
LG-2 33½-in lead/follow LG-142178 80 RPM LG-145236 LG-179015
LG-3 29½-in lead/follow LG-242800 150 RPM LG-145236 LG-179015
LG-4 33½-in lead/follow LG-242800 150 RPM LG-145236 LG-179015
LG-183708 29½-in lead/follow Manual — — LG-179015

External gearbox numbers versus interchangeable-looking housings

The gearbox is mounted between the electric motor and the lead leg. It is not the 12/16-tooth bevel gear set inside a Venture landing-gear leg. Black and gray housings can indicate different variants, but color alone is not an adequate parts cross-reference.

Factory number Maker Material / item Selection caveat
LG-179015 Stromberg Carlson Black aluminum Reduction box between motor and lead-leg input
179015 Lippert Black aluminum, as specified by the manufacturer Do not use material, color or part-number suffix alone to infer interchangeability
276602 Lippert Gray aluminum Lippert universal-mount landing-gear gearbox; compare mounting/shaft
7145-943-00 Stromberg Carlson Retainer, not a complete gearbox Separate factory gearbox retainer

Five additional parts to identify before ordering

Confirm the motor or kit before ordering: these five manufacturer numbers have product descriptions or weight ratings that may not match the factory specification. Their photographs are included to help identify the components, but purchase links are omitted until the package and rating are confirmed.
Manufacturer MPN Maker's identification Unresolved issue Status
Stromberg Carlson LG-242728 High-speed motor + switch kit 5,000-lb high-speed motor with LG-145236 IP switch. Match the motor and switch to the original landing-gear system. Confirm part specifications before ordering
Lippert 142178 Venture standard replacement motor Motor-only replacement. The installed landing-gear system determines lifting capacity; confirm the original motor and system rating. Confirm part specifications before ordering
Lippert 141893 Tuson high-speed motor Lippert specifies a 5,000-lb high-speed Tuson motor. Match the original motor, drive connection and landing-gear system. Confirm part specifications before ordering
Lippert 141892 Tuson landing-gear switch and harness Tuson landing-gear switch and harness. Match the original switch, wiring and motor system; this is not a complete landing-gear assembly. Confirm part specifications before ordering
Lippert 179015 Black landing-gear gearbox Lippert specifies aluminum construction for part 179015. Compare the original housing and drive orientation before ordering. Confirm part specifications before ordering
Stromberg Carlson LG-242728 — pictured item; verify package specifications before orderingStromberg Carlson LG-242728High-speed motor + switch kit5,000-lb high-speed motor with LG-145236 IP switch. Match the motor and switch to the original landing-gear system.
Lippert 142178 — pictured item; verify package specifications before orderingLippert 142178Venture standard replacement motorMotor-only replacement. The installed landing-gear system determines lifting capacity; confirm the original motor and system rating.
Lippert 141893 — pictured item; verify package specifications before orderingLippert 141893Tuson high-speed motorLippert specifies a 5,000-lb high-speed Tuson motor. Match the original motor, drive connection and landing-gear system.
Lippert 141892 — pictured item; verify package specifications before orderingLippert 141892Tuson landing-gear switch and harnessTuson landing-gear switch and harness. Match the original switch, wiring and motor system; this is not a complete landing-gear assembly.
Lippert 179015 — pictured item; verify package specifications before orderingLippert 179015Black landing-gear gearboxLippert specifies aluminum construction for part 179015. Compare the original housing and drive orientation before ordering.

How to avoid ordering the wrong part

  • Motor versus switch: record the complete motor label. A standalone motor such as LG-242800 or Lippert 141893 does not include a wall switch unless the exact factory package says so.
  • Standard versus high speed: match the original reduction gear housing, drive shaft, motor mounting pattern and electrical ratings. A 150-RPM motor isn't a guaranteed performance upgrade for every 80-RPM gear drive.
  • IP-rated switch versus Tuson switch: 141892 is the original Tuson switch/harness option, while LG-145236 is Stromberg's IP66 option. Match the original harness and switch circuit before any replacement.
  • Gearbox material and fitment: verify the Lippert 179015 aluminum specification and installed gearbox layout; the current NewRVParts copy mistakenly says steel.
  • Foot and bracket: Lippert 700052 footpad and 113511 weld-on bracket are separate structural components. They are not included with a motor-only SKU.

Manufacturer installation drawings and motor specifications

Stromberg LG-1 to LG-4 mounting and switch-wiring manual (PDF) Stromberg current replacement-motor and gearbox comparison (PDF) Stromberg LG-5 / LG-6 dual-power conversion contents (PDF) Lippert universal-mount landing gear OEM parts catalog (PDF)

All assembly, electrical isolation, structural mounting and safety measures should follow the installed equipment's exact original documentation. Never use fifth-wheel landing gear to lift an RV for tire service or work underneath equipment supported by extended landing legs alone.

More NewRVParts landing-gear diagrams

Stromberg complete landing gear parts & leg guideVenture internal bevel-gear repairsJacks and leveling collectionAwning and leveling diagram index

Save on Parts & Accessories

Sign up for special offers, new product updates, and deals on RV, truck camper, towing, truck, and marine parts and accessories.

About NewRVParts

NewRVParts is an online-only source for brand-new RV parts and accessories, truck camper equipment, towing and trailer parts, truck accessories, and marine products. We serve customers throughout Canada and the United States, with products from trusted manufacturers shipped through a large North American distribution network. Shop online for replacement parts, equipment, and accessories delivered directly to your door.

Shop RV Parts