Dometic 1-1/2" Swivel Nut Kit - Water System Fitting - Part# 385311212

DometicSKU: 385311212
Added to catalog: March 11, 2026

Sale price$100.46
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The Dometic 1-1/2" Swivel Nut Kit is a critical replacement component for Dometic RV water systems, providing a secure, leak-free connection for 1-1/2 inch water lines. This genuine OEM swivel nut kit ensures proper sealing and easy installation when servicing or repairing your RV's fresh water plumbing system. RV owners replacing worn fittings or upgrading water system components will find this kit essential for maintaining reliable water flow.

Key Features

  • Genuine Dometic OEM Part: Factory-engineered swivel nut kit designed specifically for Dometic water systems
  • 1-1/2 Inch Size: Standard fitting size for main water line connections in RV plumbing systems
  • Swivel Design: Allows for easier installation and proper alignment without twisting water lines
  • Complete Kit: Includes all necessary components for a proper water-tight seal
  • Durable Construction: Built to withstand the vibration and temperature variations of RV travel
  • Direct Replacement: Exact fit for original equipment, no modifications required

Technical Specifications

Part Number 385311212
Fitting Size 1-1/2 inches
Component Type Swivel Nut Kit
Application RV Water System
Manufacturer Dometic

Frequently Asked Questions

What does this swivel nut kit fit?

This 1-1/2" swivel nut kit is designed for Dometic RV water systems where 1-1/2 inch water line connections are used. It's commonly found in fresh water tank connections, pump assemblies, and main water line junctions. Verify your existing fitting size before ordering to ensure proper fit.

Does this kit include gaskets or seals?

Yes, this is a complete kit that includes all necessary components for installation, including any required sealing elements. Always inspect all components before installation and replace any worn parts to ensure a leak-free connection.

How do I know if my swivel nut needs replacement?

Replace your swivel nut if you notice water leaks at the connection point, visible cracks or damage to the nut, difficulty tightening the fitting, or if the threads are stripped or worn. Regular inspection of water system fittings can prevent water damage in your RV.

Can I use this with non-Dometic water systems?

While this is a genuine Dometic part designed for Dometic water systems, it may be compatible with other systems using standard 1-1/2" fittings. However, for best results and warranty coverage, we recommend using Dometic parts with Dometic equipment.

Why Choose Elkhart RV Parts?

At ElkhartRVParts.com, we specialize in hard-to-find Dometic replacement parts that keep your RV systems running smoothly. Located in Elkhart, Indiana — the RV capital of the world — we understand the importance of having the right part when you need it. We stock genuine OEM Dometic components and ship them fast so you can get back on the road. Our team of RV parts experts is here to help you identify the exact component you need for your water system repair. When you need authentic Dometic parts with expert support, trust the specialists at Elkhart RV Parts.

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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