Thetford Waste Ball Seal For RV Aqua Magic Style II and Residence Toilets 42141

The Thetford 42141 Waste Ball Seal is a genuine replacement part designed for Aqua Magic Style II and Residence RV toilets. This seal ensures a tight, leak-free connection between the waste ball and the toilet discharge opening, preventing leaks, odors, and inefficient flushing.

If your Style II or Residence toilet is experiencing leaks, poor sealing, or inconsistent flushing, installing the 42141 seal restores proper operation and water-tight performance. Built to Thetford’s high-quality standards, this seal is durable, easy to install, and precisely engineered for a perfect fit.

Maintain the hygiene, reliability, and efficiency of your RV toilet with the Thetford 42141 Waste Ball Seal — an essential component for smooth, leak-free operation in Aqua Magic Style II and Residence toilets.

Features & Benefits

• OEM waste ball seal engineered for Style II and Residence toilets
• Creates a strong, watertight seal between the waste ball and the bowl
• Helps maintain proper water level in the toilet bowl
• Eliminates odors caused by a worn or cracked seal
• Made from durable, flexible sealing material for long service life
• Low-cost repair that restores full flushing function

Fits These Models

Compatible with:

• Thetford Aqua-Magic Style II (both High & Low Profile)
• Thetford Aqua-Magic Residence toilets

Replaces the factory-installed waste ball seal used in these models.

Common Issues Solved

Replacing the 42141 seal can fix:

• Water slowly draining from the toilet bowl
• Persistent sewer odors from the toilet
• Poor waste ball closure
• Incomplete sealing leading to leaks or backflow
• Stiff, cracked, or deformed seals from age or mineral buildup

Replaces / Also Known As

• Thetford 42141 Waste Ball Seal
• Style II / Residence Waste Ball Gasket
• RV Toilet Waste Valve Seal
• Bowl-to-Valve Seal Replacement

What’s Included

• 1 OEM waste ball seal (rubber gasket)

Installation Overview

1. Turn off the RV water supply.
2. Remove the toilet shroud or access area to reach the waste ball assembly.
3. Clean around the waste ball gasket area thoroughly.
4. Remove the old seal and install the new 42141 seal in the same position.
5. Reassemble access panels and reconnect water.
6. Test the toilet to ensure proper bowl water retention and sealing.

Typical installation time: 15–25 minutes, depending on RV access.

Frequently Asked Questions

Q: My toilet won’t hold water in the bowl. Will this fix it?
Yes — a failed waste ball seal is the most common cause of water loss.

Q: Will this fit Style Lite or Style Plus?
No, this seal is only for Style II and Residence toilets.

Q: Is this an OEM part?
Yes, 42141 is the official Thetford replacement seal.

Q: Do I need to remove the entire toilet to install this?
Not always. Some RVs allow access through the side shroud, but others may require removal depending on layout.

Q: How often should this seal be replaced?
Typically every few years, or sooner if you notice leaks, odors, or bowl water loss.