Kirby Generation Switch 110590 replacement switch for Generation Series & Sentria — factory-fit on/off control

The Kirby Original Generation Switch (110590) is a factory-style electronic replacement switch engineered to restore on/off control for Generation Series and Sentria Kirby vacuums.

This genuine Kirby part replaces a worn or damaged power switch so your vacuum responds reliably when you need it. Designed to fit multiple Generation Series models and Sentria units, the 110590 switch matches factory electrical specifications and mounting points for an easier, more secure swap than generic alternatives. It’s intended for do-it-yourself repairs and service shops maintaining older Kirby machines.

Which Kirby models use the Generation Switch 110590?

The 110590 switch is compatible with the Generation Series family and Sentria vacuums that originally shipped with the factory electronic switch. Check your vacuum’s service manual or existing switch label to confirm. If the physical shape and connector arrangement match, this part is a suitable replacement.

• Fits Generation Series Kirby machines (confirm model specifics).
• Compatible with Sentria models using the same switch footprint.
• Replacement for worn, intermittent, or non-functioning on/off switches.

How do I install the Kirby 110590 switch safely?

Installation requires basic hand tools and disconnecting the vacuum from power. Remove the outer shell or handle cover to access the switch, note wire positions, then swap the old unit with the new one, fastening it securely before reassembling. If you’re unsure, professional service is recommended to avoid wiring errors.

• Unplug vacuum before starting any work.
• Document or photograph wire locations for correct reconnection.
• Use the original mounting screws and secure connectors firmly.

What performance differences will I notice after replacing the switch?

Replacing a faulty switch restores dependable power control and eliminates intermittent starts or stops caused by electrical contacts that have degraded. The new switch delivers the same on/off behavior as the original factory part, ensuring consistent user control and safer operation compared with aged, worn switches.

• Reliable startup and shutdown of the vacuum motor.
• Eliminates flickering or unintentional shutoffs.
• Maintains factory electrical compatibility and feel.

Are there tips to confirm this is the right part before buying?

Compare the replacement part number (110590) to your current switch label or parts list. Verify connector type, mounting tabs, and overall shape against photos or the disassembled switch to ensure compatibility. When in doubt, reference your model’s service documentation or contact a Kirby parts specialist.

• Match part number 110590 for exact replacement.
• Check connector layout and mounting screw placement.
• Confirm fit with your vacuum model’s parts diagram.

Who is this for: This Original Kirby Generation Switch 110590 is aimed at owners of Generation Series and Sentria Kirby vacuums who want a reliable, factory-compatible replacement for a failing on/off switch. It’s suitable for experienced DIYers comfortable with basic electrical disassembly and reassembly, as well as repair technicians servicing older Kirby machines. Choose this genuine part when you need a direct-fit switch that restores original functionality without modifying wiring or housings.