Is your laundry room starting to look more like a wading pool? A leaking washer is often caused by a worn-out rear tub seal. When this seal wears down, water can escape from the back of the tub. The good news is that you can replace it on your own without calling a repair technician.
This guide walks you through the process step by step so you can fix the leak, save money, and get your washer running again in a short amount of time.
Why Replace the Rear Tub Seal?
A rear tub seal keeps water contained inside the outer tub during wash and spin cycles. When the seal wears out, it can no longer hold back water, and leaks begin to appear. Common signs of failure include:
- Persistent puddles forming behind or under the washer
- A musty or damp smell coming from the back of the appliance
- Visible traces of water around the rear panel
- Increased noise during spinning due to moisture reaching internal parts
Replacing the seal prevents further water damage, protects internal components, and keeps the washer working properly.
Common Causes of Rear Tub Seal Failure
Rear tub seals wear out for several reasons. Understanding these causes helps you identify early warning signs. Contributing factors include:
- Long-term exposure to heat and detergents
- Heavy loads that strain the drum
- Mineral buildup from hard water
- Age-related cracking and shrinkage
- Worn bearings that place extra stress on the seal
Recognizing these issues early can help you address the leak before it leads to more expensive repairs.
Safety Tips Before Starting
Working on a washing machine is manageable, but it still requires attention to basic safety. Keep these tips in mind:
- Disconnect the washer from power before beginning any work
- Shut off the water supply valves
- Move the machine slowly to avoid damaging hoses or flooring
- Wear gloves to protect your hands from sharp metal edges
- Use proper lighting to keep the work area easy to see
- Keep tools organized to avoid losing small components
With the right setup, the repair becomes much easier and far safer.
Tools You Will Need
- Wood block
- Flathead screwdriver
- Hammer
- Work gloves
How to Replace a Washing Machine Rear Tub Seal
Follow these steps to remove the old seal, inspect the components, and install a new rear tub seal properly.
1. Prepare the New Seal
- Open the rear tub seal kit and confirm the replacement part matches your washer model.
- Inspect the new seal to verify it is undamaged.
2. Disassemble the Washer
- Unplug the washer and turn off the water supply.
- Move the washer to an area where you can access all sides.
- Disassemble the washer completely based on your model’s instructions or a general guide.
- Remove panels and components until the tub halves are separated and the rear tub area is reachable.
3. Remove the Old Seal
- Locate the rear tub seal in the recess of the rear outer tub.
- Insert a flathead screwdriver under the edge of the seal.
- Pry the seal upward carefully around its perimeter to avoid damaging the tub.
- Lift out the seal and clear away any debris from the area.
4. Inspect and Clean
- Spin the tub bearings with your finger to confirm they rotate freely without resistance.
- Clean the seal groove thoroughly so no dirt or residue remains.
5. Install the New Seal
- Position the new seal squarely over the opening.
- Press it down evenly by hand as far as it will go.
- Place a flat piece of wood over the seal and tap it in with a hammer.
- Tap around the seal until it sits fully and level with the tub lip.
- Verify the seal is even with no raised spots.
6. Check Spider and Shaft
- Inspect the spider arm for corrosion or weakness and replace it if damaged.
- Inspect the drum shaft for smoothness and replace it if corroded or worn.
7. Reassemble the Washer
- Reassemble all components following your model-specific instructions or a general guide.
- Reinstall panels and reconnect all parts securely.
- Restore power and water, then run a test cycle to confirm proper function and check for leaks.
Next Steps
A rear tub seal may be small, but fixing it brings big relief once the leaking stops and the washer runs smoothly again. You now know what causes the seal to wear out, how to spot the warning signs, and how to replace it with confidence. A careful repair saves money, protects your laundry space, and helps your washer last longer. Give your machine a quick check every so often so small issues stay small. Your laundry routine feels a lot easier when the washer stays dry and dependable.