K-73534 Kohler Whirlpool Pump Replacement - Retrofit

K-73534 Kohler Whirlpool Pump Replacement-Retrofit – Variable-Speed Pump with 3-Button Keypad

Restore your Kohler whirlpool bathtub with our K-73534 Kohler Whirlpool Pump Replacement-Retrofit, a complete replacement system designed to upgrade discontinued Kohler 73534-AA whirlpool pump assemblies.

This modern retrofit kit includes a 120V variable-speed whirlpool pump, NuWhirl Touchstone electronic control box, and 3-button electronic keypad. Enjoy adjustable water pressure, convenient electronic controls, and automatic shutoff without replacing your entire bathtub.

Key Features & Benefits

• 120V Variable-Speed Pump (8.5 Amps): Adjust water pressure from gentle relaxation to powerful hydrotherapy jets.
• 3-Button Electronic Keypad: Conveniently control whirlpool pump operation, jet intensity, and optional LED lighting.
• NuWhirl Touchstone Controller: Modern electronic control system designed for dependable whirlpool operation.
• 30-Minute Automatic Shutoff: Automatically turns off the whirlpool pump after 30 minutes.
• Optional LED Chromatherapy: Add a compatible multicolor LED tub light and connection cable to activate the keypad's lighting feature.
• Complete Retrofit Solution: Replaces discontinued Kohler pump and control components with updated technology.

How the 3-Button Electronic Keypad Works

Button 1 – Whirlpool Jets ON/OFF

Press the left button to activate the whirlpool pump. A built-in 30-minute timer automatically turns the pump off when the bathing session is complete. Press the button again to stop the pump at any time.

Button 2 – Variable-Speed Adjustment

The center button controls the pump's variable-speed operation. Press and hold to gradually adjust jet pressure. Release the button when your desired water pressure is reached.

Press and hold again to continue adjusting the pump speed. When the speed reaches the end of its adjustment range, the controller pauses briefly before reversing direction. This allows smooth adjustment between lower and higher jet pressure.

Button 3 – Optional LED Tub Lighting

The right button controls an optional multicolor LED tub light. When a compatible light is installed, pressing the button activates Rainbow Mode and starts a 30-minute lighting timer.

Additional presses cycle through available colors, including blue, white, aqua, green, yellow, red, and magenta. Press and hold the light button to turn the lighting off at any time.

Important: LED tub lighting is an optional feature and is not included with the standard pump replacement kit. To activate this function, purchase a compatible LED tub light and connecting cable separately.

What's Included in the K-73534 Replacement Kit?

• (1) 120V, 8.5A variable-speed whirlpool pump
• (1) NuWhirl Touchstone electronic control box – CSLC-317-02-01-01
• (1) 3-button electronic keypad
• (1) Keypad connection cable
• (1) White keypad mounting trim plate
• Pump union connection hardware

Optional accessories sold separately: Compatible LED tub light, LED connecting cable, and external whirlpool heater.

Kohler K-73534 Whirlpool Pump Replacement Compatibility

The K-73534 Kohler Whirlpool Pump Replacement-Retrofit is designed as a modern alternative to the discontinued Kohler 73534-AA whirlpool pump and its original electronic controls.

This updated system replaces aging pump and control components with modern variable-speed technology while retaining the existing whirlpool bathtub.

Depending on the original installation, existing plumbing connections may be reusable. Some installations may require minor plumbing adjustments or modifications to the keypad mounting opening.

Heater Notice: This replacement pump does not include an integrated water heater. If you wish to retain a heating function, a compatible external whirlpool heater must be purchased separately.

Installation Information

• Designed for 120V electrical applications.
• Requires a properly grounded, GFCI-protected electrical supply.
• Mount the replacement pump securely to minimize vibration.
• Verify plumbing dimensions and connection orientation before installation.
• Original keypad openings may require modification.
• Professional installation is recommended when electrical or plumbing modifications are necessary.

Why Choose Whirly Bros?

Whirly Bros specializes in discontinued Kohler whirlpool pump replacements, electronic control systems, and hydrotherapy retrofit solutions.

With over 40 years of combined whirlpool bathtub industry experience, our team helps customers identify compatible replacement components and restore aging whirlpool systems.

• Whirly Bros Compatibility Verified
• Modern Variable-Speed Pump Technology
• Convenient 3-Button Electronic Keypad
• Optional LED Chromatherapy Upgrade
• Free U.S. Shipping on Orders Over $100
• Same-Business-Day Shipping on Eligible In-Stock Orders

Need Help Confirming Compatibility?

Not sure whether this system will replace your original Kohler whirlpool pump?

Call or text Whirly Bros at (951) 897-1878. Send us a photo of your original pump label and we'll help verify compatibility before you order.