73533-AA Kohler Variable Speed Whirlpool Pump Replacement Kit | OEM Fit
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Complete modern replacement for the discontinued Kohler 73533-AA whirlpool pump system.
The original pump, keypad, electronic controls and Telco-style control cable are discontinued. This Whirly Bros retrofit replaces the complete operating system with a new 120V variable-speed pump, CG Air control box and tub-mounted keypad.
This listing is the variable-speed keypad version. It provides High, Medium, Low, Wave and Pulse operation.
Prefer not to install a new deck-mounted keypad? Choose the 73533-AA three-speed wireless remote system. The remote version provides High, Medium and Low speeds but does not include Wave or Pulse modes.
Quick Facts
| Replacement For | Kohler 73533-AA / K-73533 |
|---|---|
| Electrical | 120V, 8.5A |
| Pump | Variable speed |
| Operating Modes | High, Medium, Low, Wave and Pulse |
| Control System | CG Air Systems control box and keypad |
| Keypad Size | 2.5-inch square white trim; fits a 1-inch mounting hole |
| Heater | Not included; external inline heater sold separately |
What’s Included
- 120V, 8.5A variable-speed whirlpool pump
- CG Air Systems variable-speed control box
- White variable-speed keypad
- Pump union fitting
- Installation instructions
Installation Information
- The original Kohler pump base must be removed. Mount the replacement pump on a secure, stable base.
- Most installations can reuse the existing plumbing, but previous modifications may require minor adjustments.
- This is a 120V system and must not be connected directly to a 240V supply.
- Connect the system to a properly protected dedicated GFCI circuit.
- Start the pump union square and tighten it by hand. The O-ring creates the seal; do not use Teflon tape or pipe compound on the union threads.
Important heater information: The original K-73533 pump assembly included a heater. This replacement kit does not. If you want to retain water-temperature maintenance, view our external whirlpool heater options or contact us for help choosing the correct style.
Need help confirming compatibility? Send clear photos of the original pump label, keypad, plumbing connections and available installation space. Call or text (951) 897-1878.
Read the complete Kohler 73533-AA Replacement Guide →
Compatibility notice: Kohler® is a registered trademark of Kohler Co. The manufacturer name and part numbers are used solely for identification and compatibility reference. This aftermarket replacement system is not manufactured, sponsored, authorized or endorsed by Kohler Co.
