Thetford 42136 Aqua Magic Style II and Residence Replacement Base - Bone - Low Profile

The Thetford 42136 Replacement Base is a genuine part designed for Aqua-Magic II and Residence RV toilets. This low-profile base provides a stable, durable foundation for your toilet, ensuring proper alignment, secure installation, and reliable performance.

If your current toilet base is cracked, damaged, or worn, replacing it with the 42136 base restores stability while maintaining the original height and fit of your RV toilet. Built to Thetford’s high-quality standards, this base is easy to install, corrosion-resistant, and engineered for long-lasting durability.

Ensure your RV toilet’s stability, comfort, and functionality with the Thetford 42136 Replacement Base — an essential component for low-profile Aqua-Magic II and Residence toilets.

Features & Benefits

• OEM replacement base for Aqua-Magic Style II and Residence permanent toilets
• Low-profile design for standard seat height and compatibility with existing bathroom layout
• Bone finish matches original Aqua-Magic interior aesthetics
• Durable, rugged construction built for RV conditions and travel vibration
• Restores toilet stability — prevents shifting, rocking, or leaks at the base
• Direct compatibility with existing mounting flanges — no modification required

Fits These Models

Compatible with:

• Thetford Aqua-Magic Style II (permanent toilets)
• Thetford Aqua-Magic Residence toilets

Appropriate for installations desiring standard seat height rather than raised seating.

Common Issues Solved

Replacing with the 42136 base can fix:

• Cracked, damaged, or warped toilet bases
• Instability or shifting toilet due to base wear
• Leaks around the toilet base or flange seal area
• Cracked plastic reducing aesthetic and functionality
• Structural failure or mounting misalignment over time

Replaces / Also Known As

• Thetford 42136 Toilet Base Assembly (Low Profile)
• Aqua-Magic Style II / Residence Base Replacement — Bone
• OEM RV Toilet Base Shell (Bone Color)

What’s Included

• 1 Toilet base shell (Low Profile, Bone)

(Mounting hardware, flange seal kit, toilet bowl, seat and lid are sold separately — reuse original or order as needed.)

Installation Overview

1. Turn off water supply and disconnect the toilet from the floor flange.
2. Remove bowl, tank, or any attached components as required.
3. Unbolt and remove existing base from flange.
4. Position the new 42136 base onto the flange, aligning bolt holes.
5. Secure base with proper flange seal and bolts.
6. Reinstall toilet components—bowl, water supply, seat/ lid, and attachments.
7. Test toilet for stability, proper water sealing, and flush operation following base replacement.

Installation time varies based on access and disassembly complexity (approx. 30–45 minutes).

Frequently Asked Questions

Q: Will this base fit Style Lite or Style Plus toilets?
No — 42136 is meant for Aqua-Magic Style II and Residence permanent toilet models. Other series use different base designs.

Q: Does the kit include mounting hardware and flange seal?
No, the 42136 base shell alone is included. Mounting bolts, flange seal kits, seat, and bowl components are separate.

Q: Why choose Bone instead of White?
Bone matches the original warm off-white interior tone used in many Aqua-Magic Style II installations, maintaining original appearance.

Q: Is this an official Thetford part?
Yes — 42136 is the genuine OEM replacement for Life-Cycle support of Aqua-Magic Style II and Residence toilets.

Q: Do I need professional installation?
No. Most RV owners with basic tools can perform the replacement themselves. However, depending on your RV’s setup, removing and reinstalling the toilet might require two people or additional help.