Description
Thetford RV Aqua-Magic Style II and Aqua-Magic Residence Seat and Cover Assembly - Bone 42179
The Thetford 42179 Seat and Cover Assembly is a genuine replacement part designed for Aqua-Magic Style II and Residence RV toilets. This seat and cover provide a comfortable, stable, and hygienic surface while maintaining the original style and fit of your RV toilet.
If your existing seat or cover is cracked, worn, or discolored, installing the 42179 assembly restores a secure, comfortable, and clean seating experience. Manufactured to Thetford’s high-quality standards, this assembly is durable, easy to install, and precisely engineered for a perfect fit with compatible toilet models.
Upgrade your RV bathroom with the Thetford 42179 Aqua-Magic Style II and Residence Seat and Cover Assembly — an essential component for comfort, hygiene, and maintaining the aesthetics and performance of your toilet.
Features & Benefits
- OEM replacement seat and lid designed for Style II & Residence toilets
- Bone-colored finish matches factory toilet appearance
- Comfortable ergonomic seat design for everyday RV use
- Durable, easy-to-clean construction resists staining and wear
- Reinforced hinge system maintains stable seating and smooth lid operation
- Direct bolt-on installation—no modifications required
Fits These Models
Compatible with:
- Thetford Aqua-Magic Style II (High & Low Profile)
- Thetford Aqua-Magic Residence permanent toilets
Ensures proper hinge alignment and perfect bowl fit for both series.
Common Issues Solved
Replacing with the 42179 seat assembly can fix:
- Cracked or broken toilet seats
- Stained, yellowed, or discolored seats and lids
- Loose hinges causing seat wobble
- Misaligned or poorly fitting aftermarket seats
- Uncomfortable or worn seating surfaces
Replaces / Also Known As
- Thetford 42179 Seat & Cover Assembly (Bone)
- Style II / Residence Toilet Seat Replacement – Bone
- RV Toilet Seat & Lid Kit
- OEM Bone Seat Assembly for Thetford Permanent Toilets
What’s Included
- Bone-colored toilet seat
- Matching toilet lid
- Integrated hinge components (mounting hardware typically reused)
Installation Overview
- Remove the old seat by loosening and removing hinge bolts.
- Clean the toilet rim and hinge mounting area.
- Align the new seat’s hinges with the mounting holes.
- Insert bolts, tighten evenly, and ensure proper alignment.
- Test seat and lid movement to confirm smooth operation.
Average installation time: 5–10 minutes with basic tools.
Frequently Asked Questions
Q: Will this fit Style Lite or Style Plus toilets?
No. The 42179 fits Style II and Residence models only.
Q: Is this an OEM Thetford part?
Yes, it is the official factory replacement seat and lid for the specified models.
Q: Does it include mounting bolts?
Most installations reuse existing hardware, but replacement bolts may be purchased separately if needed.
Q: Is Bone the same as the original toilet color?
Yes — Bone is the standard off-white/cream tone used by Thetford.
Q: Can this be installed by the RV owner?
Yes. Installation is simple and requires only basic tools.
