Dometic Sealand RV Toilet Seat Assembly | 385343829 | White | 500+

Restore or upgrade your Dometic Sealand RV toilet with the Dometic Sealand 500+ White Toilet Seat Assembly (Part #385343829). This genuine Dometic OEM seat assembly fits an extensive range of Sealand Vacuflush and Traveler model toilets — replacing damaged, worn, or cracked seats with a clean drop-in solution. White finish, complete with cover and mounting bolts, ready to install.

Wide Sealand Vacuflush and Traveler Compatibility

The 385343829 fits a broad range of Dometic Sealand RV toilets, covering both the Vacuflush and Traveler product lines:

• Model 506
• Model 508
• Model 510
• Model 510+
• Model 511
• Model 511+
• Model 547+
• Model 548
• Model 548+
• Model 606
• Model 647
• Model 648
• Model 1548

Verify your existing Sealand toilet model on the manufacturer label before ordering — Dometic Sealand makes multiple toilet models, and seat assemblies are not interchangeable across all product lines.

Cross-Reference: Replaces 385343897

The 385343829 is the direct replacement for the earlier Sealand 385343897 seat assembly. If your existing seat shows part number 385343897, this 385343829 is the current production successor — same fitment, same function.

Need the Full Toilet?

If you're not just replacing the seat but considering a full toilet replacement, see the matching Sealand toilet variants this seat fits:

• Dometic Sealand 510H Gravity Discharge Toilet — high-profile, 2-bolt floor flange
• Dometic Sealand 510+ Gravity Discharge Toilet — high-profile, 4-bolt floor flange, china porcelain

Both share the same household-style comfort features and ultra-low water consumption — pick by floor flange pattern.

When to Replace Your Toilet Seat

Common reasons to replace the existing Sealand toilet seat assembly:

• Cracked or chipped seat or cover
• Loose, broken, or damaged hinges
• Worn or yellowed finish that no longer cleans up properly
• Missing mounting hardware
• Cosmetic upgrade — refresh an older RV bathroom's appearance
• Routine wear after years of use

Complete Assembly Kit

The 385343829 ships as a complete assembly with everything needed for installation:

• Seat
• Cover (lid)
• Mounting bolts

No need to source additional hardware separately — drop in the new assembly and you're done.

Genuine Dometic Sealand OEM Replacement

As a Dometic factory replacement part, the 385343829 is built to original specifications for a precise drop-in fit on compatible Sealand toilets.

Prefer Bone Color or Slow-Close?

This seat is the white standard-close assembly for the Sealand 500-series family. If you'd prefer a bone slow-close wood variant for the Sealand 500/5000 family instead, see the Dometic Sealand 385312114 Slow-Close Wood Toilet Seat — Bone. Different color, different closing-type, but both serve the Sealand 500-series toilet family.

Key Features

• Genuine Dometic Sealand OEM toilet seat assembly
• White finish
• Wide compatibility — fits 13 Sealand Vacuflush and Traveler models
• Direct replacement for Sealand 385343897
• Complete kit — seat, cover, and mounting bolts included
• Direct OEM fit
• Compact dimensions (not including hinges): 16" × 14-3/8" × 1-3/4"

What's Included

• (1) Seat
• (1) Cover
• Mounting bolts

Specifications

• Brand: Dometic Sealand
• Part Number: 385343829
• Replaces: Dometic Sealand 385343897
• Type: RV Toilet Seat Assembly
• Color: White
• Sibling Variant Available: Bone slow-close wood (Dometic Sealand 385312114 — for Sealand 500/5000 Series)
• Compatible Models: Dometic Sealand Vacuflush and Traveler — Model 506, 508, 510, 510+, 511, 511+, 547+, 548, 548+, 606, 647, 648, 1548
• Overall Dimensions (not including hinges): 16" L × 14-3/8" W × 1-3/4" H