Dometic VG4 to HD Tank Fitting Kit - Adapter - Part# 385311236

DometicSKU: 385311236
Added to catalog: March 10, 2026
Last product update: June 6, 2026 at 5:18 AM

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This VG4 to HD Tank Fitting Kit is an adapter that allows you to connect Dometic VG4 waste systems to HD (heavy-duty) holding tanks. If you're upgrading your RV's waste management system or replacing a damaged connection, this fitting kit ensures a secure, leak-free seal between your VG4 valve and HD tank infrastructure.

Key Features

  • Direct adapter from Dometic VG4 valve to HD holding tank connections
  • Engineered for secure, leak-free waste system connections
  • OEM Dometic part — guaranteed compatibility with VG4 systems
  • Durable construction designed for RV waste management demands
  • Easy installation with standard RV plumbing tools
  • Replacement solution for cracked, corroded, or missing fittings

Technical Specifications

Specification Details
Part Number 385311236
Manufacturer Dometic
Application VG4 to HD Tank Adapter
System Type Waste Management / Holding Tank

Frequently Asked Questions

Q: Will this adapter work with my Dometic VG4 valve?
A: Yes. This is an OEM Dometic fitting kit specifically designed to connect VG4 valves to HD holding tanks. Verify your current valve model before ordering to ensure compatibility.

Q: Can I install this myself, or do I need a technician?
A: Most RV owners can install this adapter with basic plumbing knowledge and standard tools. However, if you're unfamiliar with waste system connections, professional installation is recommended to prevent leaks.

Q: What should I do if my connection is still leaking after installation?
A: Check that all fittings are hand-tight plus one-quarter turn with a wrench. Ensure the adapter seals are properly seated. If leaking persists, contact our support team — we can help troubleshoot or arrange a replacement.

Why Elkhart RV Parts

We specialize in hard-to-find Dometic replacement parts for RV owners who need exact OEM compatibility. Located in Elkhart, Indiana — the RV capital of the world — we stock genuine Dometic components and provide expert support to help you identify and install the right part. Fast shipping and backed by our commitment to quality.

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 Genuine, name-brand components made to order — never generic, never outdated.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