Thetford Toilet Seat For Aria Deluxe I/II, Classic - White - 33384

The Thetford 33384 Toilet Seat is a genuine replacement part designed for Aria Deluxe I, Aria Deluxe II, and Classic RV toilets. This full-size toilet seat provides comfort, stability, and a hygienic surface for everyday use while maintaining the original style and fit of your RV toilet.

If your existing seat is cracked, worn, or discolored, replacing it with the 33384 ensures a secure, comfortable, and clean seating experience. Built to Thetford’s high-quality standards, this seat is durable, easy to install, and perfectly compatible with the specified toilet models.

Upgrade your RV bathroom with the Thetford 33384 Toilet Seat — an essential part for comfort, safety, and maintaining the performance and aesthetics of your Aria Deluxe or Classic toilet.

Features & Benefits

• OEM-grade toilet seat ensuring exact fit and smooth hinge operation
• Clean white finish for a bright, factory-fresh look
• Durable, easy-clean material that resists staining and cracking
• Comfortable ergonomic seat shape ideal for repeated use
• Reinforced hinge design built to withstand vibration and movement typical in RV or marine environments
• Simple installation — replaces original seat without modifications

Fits These Models

• Thetford Aria Deluxe I
• Thetford Aria Deluxe II
• Thetford Classic RV toilet series

If your toilet uses the standard Aria/Classic bowl shape and latch-up seat design, this is the correct replacement seat.

Common Issues Solved

This replacement seat addresses problems such as:

• Cracked, chipped, or discolored old seats
• Loose, worn, or broken hinges
• Uncomfortable or unstable seating due to broken seat-to-bowl fit
• Outdated or aged seats that detract from RV interior appearance

Replaces / Also Known As

• Thetford part number 33384
• OEM Aria Deluxe / Classic Toilet Seat – White
• RV Toilet Seat Replacement for Aria/Classic Series

What’s Included

• 1 White toilet seat (bowl-mount type)
• Lid and seat assembly
• Hinge attachment points (ready for mounting — reuses or replaces original bolts depending on model)

Installation Instructions

1. Remove the old toilet seat by loosening and removing existing hinge bolts.
2. Clean the toilet rim and hinge area thoroughly.
3. Align new seat hinges with the bolt holes on the toilet bowl.
4. Insert and tighten bolts to secure the seat; ensure the seat and lid align properly and close smoothly.
5. Test seat stability and make sure it doesn’t shift under weight.

Installation typically takes 5–10 minutes with basic hand tools.

Frequently Asked Questions

Q: Will this seat fit both Aria Deluxe I and Deluxe II toilets?
Yes. The 33384 seat is designed to fit both Aria Deluxe I and II models, as well as the Classic series, provided the bowl and hinge pattern match the original.

Q: Is this an OEM Thetford part?
Yes — 33384 is the genuine replacement seat manufactured for Thetford RV toilets.

Q: Does this seat require special tools to install?
No. Standard household tools (e.g., screwdriver or wrench) are sufficient for removal and installation.

Q: Is the white color the same as standard Aria/Classic porcelain?
Yes. The white finish matches the typical toilet bowl and interior trim used in most Aria Deluxe and Classic toilets.

Q: My old seat uses stainless bolts — do I need new bolts with this seat?
If the original bolts are in good condition, you can reuse them. If they’re corroded or missing, we recommend replacing them when installing the new seat for optimal stability.