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Lippert Kwikee 3747453 28 Series Single Electric RV Entry Step Assembly -- 24 in. Wide, 750 lb Capacity

Lippert Kwikee 3747453 28 Series Single Electric RV Entry Step Assembly, 24-inch wide tread, black powder-coat finish with yellow safety strip
Kwikee 3747453 28 Series Single Electric RV Entry Step Assembly
 
List Price: $690.49
: $690.49
Part Number: 3747453
Manufacturer: Lippert

Quantity in Stock :20

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Lippert / Kwikee 750 lb Rated Made in USA Kwikee 3747453 -- 28 Series Single Electric RV Entry Step Assembly

Step on and off your RV with confidence. The Kwikee 28 Series single electric step automatically extends the moment you open your door and retracts the moment you close it -- no buttons, no manual pulling, no forgetting to stow before you drive. At 24 inches wide and rated to 750 lbs, it handles everything from a quick grocery run to a muddy campsite exit in full gear.

Automatic Operation, Built for the Long Haul

The Kwikee 3747453 is a direct-fit, single-step replacement assembly designed for RVs originally equipped with Kwikee 28 Series electric step systems. It ships as a complete kit -- step with motor, logic control unit, and door switch kit -- so you have everything needed to get back on the road without sourcing individual components separately.

The 12V DC motor drives solid 3/4-inch steel drive rods through stainless steel bushings, giving this step the mechanical durability to handle thousands of open-and-close cycles without loosening or binding. Air-pressed rivet fasteners at every joint eliminate the slop that develops in welded or bolt-joined competitors over time.

Auto-Extend and Retract

Step deploys when the door opens and retracts when the door closes. Fully automatic -- no manual operation required.

Obstacle Auto-Shutoff

Motor stops immediately if the step encounters resistance during travel, protecting the mechanism and anyone nearby.

Hidden Amber Guide Light

Built-in amber light illuminates the step tread in low-light conditions -- useful at night or in dimly lit campsite areas.

Non-Skid Tread + Safety Strip

Textured non-skid surface and a reflective yellow safety strip improve footing and visibility in wet or dark conditions.

Construction and Materials

The step frame and tread are built from heavy-gauge steel with a black powder-coat finish that resists rust and road corrosion over years of outdoor exposure. Drive rods are solid 3/4-inch steel -- not hollow tube -- and the pivot points use stainless steel bushings that resist galling and corrosion even when exposed to road spray and moisture.

Wiring and connectors are weatherproof-sealed, preventing shorts and corrosion in the system -- a common failure point on older or budget electric steps.

Complete Kit -- Ready to Install
Includes: (1) entry step with 12V DC motor, (1) logic control unit, (1) door switch kit. No separate motor or controller purchases needed. Note: mounting hardware is NOT included.

Fitment and Compatibility

This assembly is designed as a direct replacement for RVs originally equipped with Kwikee 28 Series single electric step systems. It is also known and catalogued under part number 902809025. If your existing step bracket and wiring harness are sized for the 28 Series, this unit installs without modification to the coach structure.

The 28 Series is a widely used Kwikee step platform found on travel trailers, fifth wheels, and Class A/C motorhomes from multiple manufacturers including Coachmen, Forest River, Keystone, and others. Confirm your existing step width and series number before ordering.

Also Listed As: Part number 902809025 is the alternate Kwikee catalog number for this same assembly. Both 3747453 and 902809025 refer to identical product.

Installation Notes

The step mounts to the coach's existing step bracket. Electrical connection is made through the included door switch kit and logic control unit, which tie into the coach's 12V DC system. The door switch triggers automatic deployment; the logic control unit manages motor timing, obstacle detection, and shutoff logic.

Mounting Hardware Not Included: Bolts, nuts, and bracket hardware are not supplied with this kit. Use grade-appropriate fasteners rated for the 750 lb step load. Verify the existing mounting bracket is undamaged and properly anchored to the coach frame before installation.
Maintenance Tips
  • Lubricate pivot arms and stainless bushings with a dry or silicone-based lubricant every season -- avoid petroleum grease which attracts road grit.
  • Inspect weatherproof connector seals annually; re-seal with dielectric grease if connectors show signs of moisture entry.
  • Check that the door switch actuates cleanly with each door open/close cycle; a sticky switch is the most common cause of step failure to deploy.
  • Before storing for winter, cycle the step fully retracted and verify no debris is trapped in the scissor linkage.

Step Dimensions

Tread Width (overall)24 in. (610 mm)
Tread Width (walkable)23.75 in.
Tread Depth (run)10 in.
Rise (step height)7 in.
Tread Depth (D, deployed)10-3/4 in.
Step Assembly Weight41 lbs

Load and Performance

Weight Capacity750 lbs
Step SeriesKwikee 28 Series (single step)
OperationAutomatic (door-switch triggered)
Obstacle ProtectionAuto-shutoff on resistance

Electrical Specifications

Motor Voltage12V DC
WiringWeatherproof-sealed
ConnectorsWeatherproof-sealed, corrosion resistant
ControlLogic control unit (included)
TriggerDoor switch (included)

Construction

Frame MaterialHeavy-gauge steel
FinishBlack powder-coat (rust and corrosion resistant)
Drive RodsSolid 3/4 in. steel
BushingsStainless steel
Joint FastenersAir-pressed rivets at every joint
Tread SurfaceNon-skid with reflective yellow safety strip
Guide LightHidden amber, integrated
Country of OriginMade in USA

What is Included

Entry Step with Motor1 pc
Logic Control Unit1 pc
Door Switch Kit1 pc
Mounting HardwareNOT included

Part Number Reference

Lippert / Kwikee Part No.3747453
Alternate Part No.902809025
UPC848150026330
ManufacturerLippert (Kwikee)
Important Information -- Read Before Installing
  • Mounting hardware (bolts, nuts, brackets) is NOT included. Source grade-appropriate fasteners before beginning installation.
  • This step is rated to 750 lbs. Do not exceed the rated load capacity.
  • Confirm your RV is equipped with a Kwikee 28 Series single-step mounting bracket before ordering -- this assembly will not adapt to different series brackets without modification.
  • Disconnect 12V power to the step circuit before beginning installation or any wiring work.
  • The obstacle-shutoff feature protects the motor but does not replace a visual check before closing the door -- always verify the step path is clear of people and objects.
  • Do not use this step as a platform while the vehicle is in motion. The step must be fully retracted before driving.
  • Inspect mounting hardware and step linkage at least once per season; loose fasteners and worn bushings reduce load capacity and step life.


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