When your Kwikee RV entry steps stop retracting or extending with the door, a failed plunger switch is often the culprit. The Kwikee 379388 Plate Plunger Door Switch is the factory-style replacement that restores proper door-activated step operation -- no splicing, no fabrication. It mounts to your RV door and doorframe using the original footprint and plugs directly into the existing two-blade harness connector.
Kwikee electric entry steps rely on a door-activated plunger switch to signal the step controller: door open means steps deploy, door closed means steps retract. Over time the plunger mechanism or internal contacts wear out from thousands of open-close cycles, exposure to weather, and road vibration. Running aftermarket or mismatched switches can cause delayed retraction, steps that won't extend, or steps that cycle at random.
Part number 379388 (cross-reference 905302000) is the correct OEM-style replacement. It uses the same two-blade spade connector as the original, so the swap is a plug-and-play job for most Kwikee step systems. Everything needed for installation is in the box.
Two-blade spade connector matches the factory wiring harness on compatible Kwikee step systems -- no terminal crimping or wire splicing required.
Includes the plunger door sensor, striker plate, and mounting plate. You get everything required for a full switch replacement in one package.
Plate mounts to the RV doorframe; striker contacts the door edge when closed, depressing the plunger and signaling the step controller to retract.
Manufactured domestically to Kwikee quality standards and backed by a limited 1-year manufacturer warranty.
The switch body mounts to the doorframe with the included plate. When the RV door closes, the striker contacts the plunger, compressing it and changing the switch state -- this tells the Kwikee step controller to retract the steps. When the door opens, the plunger extends and the steps deploy. A worn or cracked plunger, corroded contacts, or a missing striker plate can break this signal chain entirely.
Replacement is a straightforward job for a comfortable DIYer: