Dometic RV Toilet Seat & Lid Assembly - White - Fits 300/310/320 Series - Part# 385311252

DometicSKU: 385311252
Added to catalog: March 10, 2026
Last product update: June 6, 2026 at 2:09 AM

Sale price$131.42 Regular price$208.96
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In stock (6 units), ready to be shipped
FREE Delivery Estimate June 9 – June 12
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 toilet seat and lid assembly is the replacement you need when your RV's throne room fixture shows wear, cracks, or damage. This genuine OEM part restores comfort and sanitation to your mobile bathroom, fitting Dometic 300, 310, and 320 series toilets. Keep your RV bathroom functional and hygienic with this durable replacement component.

Key Features

  • Genuine OEM Dometic part—exact factory specifications
  • White finish matches original Dometic 300/310/320 toilets
  • Includes both seat and hinged lid assembly
  • Durable molded plastic construction for long-lasting use
  • Easy bolt-on installation with existing toilet base
  • Compatible with fresh water and black water systems

Technical Specifications

Specification Details
Part Number 385311252
Color White
Compatible Models Dometic 300, 310, 320 Series
Assembly Type Seat and Lid with Hinges
Material Molded Plastic
Installation Bolt-on to existing toilet base

Frequently Asked Questions

Will this seat fit my Dometic toilet?

Yes, this assembly is designed specifically for Dometic 300, 310, and 320 series toilets. Verify your toilet model before ordering. If you're unsure, check your toilet's underside or manual for the model number.

Is this a complete replacement or just the seat?

This is the complete seat and lid assembly with hinges included. You're replacing the entire top portion that attaches to your toilet base—no additional parts needed for installation.

How do I install this replacement?

The assembly bolts directly onto your existing Dometic toilet base using the original mounting holes. Installation typically takes 10–15 minutes with basic tools. Refer to your RV manual or contact our support team for detailed guidance.

Why Elkhart RV Parts

We specialize in hard-to-find Dometic RV replacement parts and ship from Elkhart, Indiana—the RV capital of the world. Every part we sell is genuine OEM, ensuring perfect fit and reliability. Our expert support team is ready to help you identify and install the exact part your RV needs.

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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