Stop fighting a slow, noisy, or dead Kwikee electric step. The 379769 B Linkage Repair Kit gives you everything you need to fully rebuild the mechanical and electrical heart of your step system -- without replacing the step treads or frame. A genuine Lippert/Kwikee kit engineered to restore OEM-level performance on some of the most common RV entry steps in North America.
Kwikee Series 28, 31, 37, and 39 electric steps are found on a huge range of Class A, Class C, fifth-wheel, and travel trailer rigs built over the last two-plus decades. When the motor burns out, the gearbox strips, the linkage bends, or the control unit fails, this kit replaces all four critical assemblies at once -- so you are not chasing the next failure a month down the road.
The kit is designed for DIY installation. Kwikee includes a full instruction sheet, and the mechanical layout of these step systems is well-documented. Most owners with basic hand tools and a couple of hours can complete the swap at a campsite or in their own driveway.
Genuine Kwikee replacement motor sized and rated for Series 28, 31, 37, and 39 step loads. Restores full extension and retraction speed.
Replacement gearbox matched to the motor. Eliminates grinding, slipping, and the partial-travel issues caused by worn gears.
The B-style linkage arms and hardware that translate motor rotation into smooth step travel. Correct geometry for the Series 28/31/37/39 frame.
Replacement electronic control module. Handles the door-switch logic, auto-retract on ignition, and motor protection functions.
Kwikee produces its repair kits in different linkage configurations -- A, B, and others -- to match the specific pivot geometry of different step frame generations. The "B" linkage is required for Series 28, 31, 37, and 39 steps manufactured from 1999 onward. Installing the wrong linkage style will result in binding or incorrect step travel, so confirming your series before ordering is important.
The 379769 kit is validated by Kwikee for the following electric step series:
Your step series number is typically stamped or labeled on the step frame or found in your coach documentation. If you are unsure of your series, match the step frame width and tread count to Kwikee's series guide before ordering.
Kwikee's step systems use a modular design that makes component swaps straightforward for owners comfortable with basic electrical connections and hand tools. The included instruction sheet walks through disassembly, component swap, and reconnection. The control unit plugs into the existing wiring harness using OEM connectors -- no splicing required on most applications.
On high-cycle step systems, the motor, gearbox, linkage, and control unit wear together. Replacing only the failed part often means another failure within a short period as adjacent worn components pick up additional load. A full drive rebuild with the 379769 kit resets the entire system to a like-new baseline and is typically more cost-effective than multiple partial repairs over time.