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Delta Shower Cartridge Replacement: A Step-by-Step DIY Guide

Overview

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Tools & Materials

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This project details how to perform a Delta shower cartridge replacement. It includes these steps: 1. Shut off the water supply to the shower. Turn off the shut-off valves under the sink or turn off the main water supply. 2. Remove the shower handle. Use a flathead screwdriver to remove the center cap and then a Phillips head screwdriver to remove the screw holding the handle in place. 3. Remove the old cartridge. Use needle-nose pliers or a cartridge puller tool, removing the retaining clip first. If it's stuck, use a flathead screwdriver. 4. Install the new Delta cartridge. Align and seat the cartridge, tightening the retaining nut by hand. 5. Reassemble the handle, sleeve, and cap, then turn the water supply back on slowly and check for leaks.

What You'll Need

30 in. Steel Sprinkler Valve Key 410-406-0111
This is a Sprinkler Valve Key Wrench. It is used for turning off and on manual sprinkler control valves. It is most commonly used with in ground lawn sprinkler systems.

Phillips head screwdriver
This is a type of screwdriver that has a cross-shaped tip.

XtremepowerUS Slide Hammer Axle Puller Tool Kit 26031-H
Designed to remove dents for auto body, it repairs the auto body without removing the inside panel and upholstery. Drop forged steel hooks, pullers and attachments, Heavy-duty and durable. A variety of

Featured Steps

Step 1

Step 2

Step 3

Step 4

Step 5

Step 1

Shut Off the Water Supply

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30 in. Steel Sprinkler Valve Key 410-406-0111

Before starting, completely shut off the water supply to your shower.

Locate the shut-off valves (usually under the sink or near the shower) and turn them clockwise until they stop.

If individual valves are unavailable, turn off the main water supply to your house.

Step 2

Remove the Handle and Escutcheon Plate

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Carefully remove the shower handle and the escutcheon plate.

This usually involves unscrewing a small set screw (often hidden under a cap) using an Allen wrench or small screwdriver.

Then, gently pull off the handle and the decorative plate.

Step 3

Remove the Old Cartridge

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Remove the old shower cartridge.

You might need needle-nose pliers or a specialized cartridge puller.

Delta cartridges often have a retaining clip;

remove this first.

If the cartridge is stuck, carefully use a flat-head screwdriver to pry it loose.

Step 4

Install the New Delta Cartridge

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Carefully install the new Delta 17 Series (or appropriate model) cartridge.

Make sure it's properly aligned and seated in the valve body.

Tighten the retaining nut by hand—avoid over-tightening.

Step 5

Reassemble and Test

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Carefully reassemble the faucet, replacing the escutcheon, handle, and other components.

Slowly turn the water supply back on and check all connections for leaks.

Tighten any loose fittings if necessary.

Videos

Before starting, completely shut off the water supply to your shower. Locate the shut-off valves (u...