Dometic RV Toilet Seat Assembly - Fits 300/310/320 Series - Part# 385311430

DometicSKU: 385311430
Added to catalog: March 10, 2026
Last product update: June 6, 2026 at 2:19 AM

Sale price$430.51 Regular price$684.51
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The Dometic toilet seat assembly is an essential replacement component for RV owners with 300, 310, or 320 series models. This OEM-genuine seat assembly restores comfort and functionality to your RV bathroom, whether you're replacing a worn seat or upgrading from an older unit.

  • OEM Dometic genuine part—exact factory specifications
  • Fits Dometic 300, 310, and 320 series toilet models
  • Durable molded plastic construction designed for RV use
  • Easy bolt-down installation—no special tools required
  • Includes all necessary mounting hardware
  • Compatible with standard RV plumbing connections
Specification Details
Part Number 385311430
Manufacturer Dometic
Compatible Models 300, 310, 320 Series
Material Molded Plastic
Installation Type Bolt-Down
Includes Hardware Yes

Frequently Asked Questions

Q: Will this seat fit my older Dometic 300 series toilet?
A: Yes, this assembly is designed for all Dometic 300, 310, and 320 series models. Verify your model number before ordering to ensure compatibility.

Q: Do I need a plumber to install this?
A: No. The seat assembly bolts directly onto your existing toilet bowl. Most RV owners can complete installation in under 15 minutes with basic hand tools.

Q: Is this an OEM part or aftermarket?
A: This is a genuine OEM Dometic part manufactured to factory specifications, ensuring exact fit and reliable performance.

Why Elkhart RV Parts: We specialize in hard-to-find Dometic replacement parts and ship directly from Elkhart, Indiana—the RV capital of the world. Every part is genuine OEM stock backed by expert customer support to help you find exactly what you need.

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 Genuine, name-brand components made to order — never generic, never outdated.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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