Dometic Sump Control Module Kit 24V - Part# 385310721

DometicSKU: 385310721
Added to catalog: March 11, 2026
Last product update: June 5, 2026 at 7:50 PM

Sale price$325.99 Regular price$518.32
| Found it cheaper? Get an answer in seconds.
FREE Delivery Estimate August 3 – August 11
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.

Action Required: Please read & accept before ordering

The Dometic Sump Control Module Kit (24V) is the brain behind your RV's waste water management system. This control module automatically monitors and manages your gray and black water tanks, preventing overflows and system failures. Essential for any RV owner who relies on Dometic's integrated tank monitoring and pump control systems.

Key Features

  • 24-volt DC operation compatible with standard RV electrical systems
  • Automatic sump pump control with integrated float switch monitoring
  • Prevents tank overflow and protects waste water systems
  • OEM Dometic replacement part for reliable performance
  • Direct replacement for failed or malfunctioning control modules
  • Weatherproof sealed design for RV compartment mounting

Technical Specifications

Specification Details
Part Number 385310721
Voltage 24V DC
Manufacturer Dometic
Type Sump Control Module Kit
Application Gray/Black Water Tank Management
Mounting Wall or Panel Mount

Frequently Asked Questions

Q: How do I know if my sump control module needs replacement?
A: Signs include sump pump not activating, continuous pump running, error codes on your tank monitor, or complete loss of tank level indication. If your waste water system stops responding to tank levels, this module is likely the culprit.
Q: Is this module compatible with my RV's existing tank monitoring system?
A: This is a genuine OEM Dometic part designed to integrate seamlessly with Dometic waste management systems. Verify your current system uses Dometic components and that your RV runs a 24V electrical system before ordering.
Q: Can I install this myself, or do I need professional help?
A: Installation typically involves disconnecting the old module and connecting wiring harnesses to the new unit. If you're comfortable with basic RV electrical connections and mounting hardware, DIY installation is possible. Consult your RV manual for specific mounting location and wire connections.

Why Elkhart RV Parts

We specialize in hard-to-find Dometic replacement parts that keep your RV running smoothly. Shipping directly from Elkhart, Indiana—the RV capital of the world—we stock genuine OEM Dometic components and provide expert support to help you find exactly what you need. When your waste water system fails, we have the parts and knowledge to get you back on the road.

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.

You may also like

Recently viewed