Home General Delta Bathtub Faucet Cartridge Replacement: A Step-By-Step Guide

Delta Bathtub Faucet Cartridge Replacement: A Step-By-Step Guide

SingleHandle Cartridge for Delta MultiChoice Tub and Shower Faucets
SingleHandle Cartridge for Delta MultiChoice Tub and Shower Faucets from www.homedepot.com


If you are facing issues with your Delta bathtub faucet, such as leaks or difficulty in controlling water temperature, it might be time to replace the cartridge. The cartridge is the heart of the faucet and is responsible for controlling the water flow and temperature. In this article, we will provide you with a step-by-step guide on how to replace the cartridge in your Delta bathtub faucet.

Before You Begin

Before starting the replacement process, make sure you have the necessary tools and materials. You will need a screwdriver, adjustable wrench, pliers, replacement cartridge, and plumber’s tape. It is also advisable to turn off the water supply to the faucet to avoid any accidents.

Step 1: Remove the Handle

Start by removing the handle of your Delta bathtub faucet. Depending on the model, you might need to unscrew a set screw or use pliers to remove a decorative cap before accessing the screw. Once the screw is exposed, use a screwdriver to remove it and gently pull off the handle.

Step 2: Remove the Trim Plate

After removing the handle, you will see a trim plate covering the cartridge. Use a screwdriver to remove the screws holding the trim plate in place. Once the screws are removed, carefully pull off the trim plate.

Step 3: Remove the Cartridge

Now that you have access to the cartridge, use pliers to grip the top of the cartridge and pull it straight out. If the cartridge is difficult to remove, you can use a cartridge puller tool for added leverage. Be cautious not to damage any surrounding plumbing while removing the cartridge.

Step 4: Install the New Cartridge

Before installing the new cartridge, it is recommended to apply plumber’s tape to the threads of the cartridge to ensure a watertight seal. Align the tabs on the cartridge with the corresponding slots in the faucet and push it firmly into place. Make sure the cartridge is fully inserted and secure.

Step 5: Reassemble the Faucet

Once the new cartridge is installed, reassemble the faucet by following the previous steps in reverse order. Place the trim plate back in place and secure it with the screws. Then, reattach the handle by inserting it onto the cartridge stem and tightening the screw.

Step 6: Test the Faucet

Turn on the water supply and test the faucet to ensure it is functioning properly. Check for any leaks and ensure that the water flow and temperature can be controlled easily. If there are any issues, double-check the installation and make any necessary adjustments.


Replacing the cartridge in your Delta bathtub faucet can solve common issues and restore the functionality of your faucet. By following this step-by-step guide, you can easily replace the cartridge and enjoy a leak-free and properly functioning faucet once again.