Dometic QUA 430 Series Toilet Seat and Lid Assembly - Part# 385311720

DometicSKU: 385311720
Added to catalog: March 10, 2026
Last product update: June 6, 2026 at 3:44 AM

Sale price$158.99 Regular price$252.79
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In stock (13 units), ready to be shipped
FREE Delivery Estimate June 10 – June 13
1-Hour Cancellation Window

1-Hour Cancellation Window

You'll have 1 hour after placing your order to update your shipping address or cancel completely.

After that, we begin coordinating with our vendors to fulfill your order — at that point, cancellations and address changes usually aren't possible.

If you're unsure about anything, please reach out before ordering or cancel within the window.

The Dometic QUA 430 Series toilet seat and lid assembly is the complete seating solution for your RV's cassette toilet system. This genuine OEM replacement part restores comfort and functionality to your bathroom, whether you're replacing a cracked seat, worn hinge, or damaged lid. Essential for any RV owner maintaining their Dometic QUA 430 toilet.

Key Features

  • Genuine OEM Dometic part designed for QUA 430 Series toilets
  • Complete assembly includes both seat and lid with integrated hinges
  • Durable plastic construction built to withstand RV travel vibration
  • Easy bolt-down installation to existing toilet base
  • Soft-close lid mechanism reduces slamming in moving RVs
  • Compatible with standard RV bathroom layouts and plumbing configurations

Technical Specifications

Specification Detail
Part Number 385311720
Toilet Series Dometic QUA 430
Assembly Type Seat and Lid with Hinges
Material Durable Plastic
Installation Bolt-down to toilet base

Frequently Asked Questions

Will this seat fit my Dometic QUA 430 toilet?
Yes, this is the genuine OEM seat and lid assembly specifically designed for Dometic QUA 430 Series toilets. Verify your toilet model before ordering to ensure compatibility.

Can I replace just the seat or lid separately?
This assembly comes as a complete unit with both seat and lid attached to the hinge mechanism. Dometic designs these as integrated assemblies for proper fit and function.

How difficult is installation?
Installation is straightforward—the assembly bolts directly to your existing toilet base. Most RV owners complete the swap in under 15 minutes with basic tools. Consult your Dometic manual for torque specifications.

Why Elkhart RV Parts

We specialize in hard-to-find Dometic RV replacement parts and ship directly from Elkhart, Indiana—the RV capital of the world. Every part is genuine OEM Dometic stock backed by expert customer support. When you need the exact replacement for your RV bathroom, we have it in stock and ready to ship.

100% Authentic OEM Parts

Factory-Fresh OEM Parts — the same brands installed in new RVs straight from Elkhart. Genuine, name-brand components made to order — never generic, never outdated. Sourced directly from the original RV manufacturers for perfect fit and factory-level quality.

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