Thetford Vacuum Breaker Kit For Aria Deluxe I RV Toilets - 19671

The Thetford 19671 Vacuum Breaker Kit is a genuine replacement part made for Aria Deluxe I RV toilets. The vacuum breaker plays a critical role in preventing backflow, protecting your RV’s fresh water supply from contamination while allowing proper water flow during flushing.

If your toilet is leaking near the water line, failing to flush properly, or showing signs of backflow issues, replacing the vacuum breaker with this kit restores safe and efficient performance. Built to Thetford’s high standards, this kit provides a perfect fit, durable construction, and easy installation.

Keep your RV’s water system safe and your Aria Deluxe I toilet operating smoothly with the Thetford 19671 Vacuum Breaker Kit — an essential part for reliable flushing and water protection.

Features & Benefits

• OEM vacuum breaker designed specifically for Aria Deluxe I
• Prevents backflow contamination and protects your RV’s water supply
• Restores proper toilet refill and flush water flow
• Built from durable, corrosion-resistant materials
• Helps eliminate leaks around the water inlet area
• Easy to install with standard tools
• Ensures safe, sanitary operation of your electric toilet system

Fits These Models

This vacuum breaker kit is compatible with:

• Thetford Aria Deluxe I
  (Automatic or electric-flush configurations)

Not compatible with Aria Deluxe II or non-automatic models.

Common Issues Solved

Replacing the 19671 vacuum breaker can resolve:

• Water leaking from behind the toilet
• Freshwater system contamination concerns
• Weak or inconsistent water flow into the bowl
• Failure of the bowl to fill during flush cycle
• Backflow issues or siphoning after flushing
• Water running continuously after a flush

Replaces / Also Known As

• Thetford 19671 Vacuum Breaker
• Aria Deluxe I Vacuum Breaker Assembly
• RV Toilet Anti-Backflow Valve
• OEM Water Inlet Vacuum Breaker

What’s Included

• (1) Vacuum Breaker Assembly
• Pre-installed water line fittings

Installation Overview

1. Turn off RV water supply and 12V power to the toilet.
2. Remove the toilet shroud or access panel to locate the vacuum breaker.
3. Disconnect the water lines from the old vacuum breaker.
4. Remove the old assembly and install the new 19671 unit.
5. Reconnect water lines and check connections.
6. Restore power and water, then test for leaks and proper water flow.

Approximate installation time: 10–20 minutes.

Frequently Asked Questions

Q: Will this fit the Aria Deluxe II?
No. This part is for Aria Deluxe I only. The Deluxe II uses a different vacuum breaker design.

Q: Does this fix leaks coming from the back of the toilet?
Yes, a failed vacuum breaker is one of the most common sources of water leaking from behind an Aria Deluxe I.

Q: Is this a genuine Thetford part?
Yes, this is the OEM vacuum breaker for the Aria Deluxe I.

Q: Can I install this myself?
Yes. If you can safely disconnect your toilet’s water lines, you can perform this replacement easily.