Dometic 12V Holding Tank Sump Control Module Kit - Replacement Waste System Controller - Part# 385310659

DometicSKU: 385310659
Added to catalog: March 11, 2026
$463.72
|
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The Dometic 12V Holding Tank Sump Control Module Kit is a critical replacement component for RV waste management systems, controlling the automated operation of holding tank sump pumps. This OEM control module ensures reliable waste evacuation in RVs equipped with Dometic macerator and sump pump systems. If your holding tank pump has stopped responding, cycles erratically, or fails to activate, this control module kit provides the electronic control needed to restore proper waste system function.

Key Features

  • Complete Control Module Kit: Includes all necessary components for replacing failed sump pump control electronics
  • 12V DC Operation: Designed specifically for RV electrical systems with standard 12-volt power supply
  • OEM Dometic Quality: Genuine replacement part engineered to exact factory specifications for reliable performance
  • Holding Tank System Integration: Works seamlessly with Dometic waste management and macerator pump systems
  • Direct Replacement: Designed to replace worn or failed control modules without system modifications
  • Durable Construction: Built to withstand the harsh environment of RV waste system installations

Technical Specifications

Frequently Asked Questions

How do I know if my control module has failed?

Common symptoms include the sump pump not activating when the tank reaches capacity, intermittent operation, the pump running continuously without stopping, or complete system failure. If your holding tank sensors show full but the pump won't engage, the control module is often the culprit.

Is this compatible with all Dometic holding tank systems?

This control module is designed for specific Dometic 12V sump pump systems. Verify your existing part number matches 385310659 before ordering. If you're unsure about compatibility with your RV's waste system, contact our parts specialists with your RV make, model, and year.

What's included in this kit?

This is a complete control module kit containing all electronic components needed to replace a failed sump control unit. The kit includes the control module assembly and necessary hardware for installation in your existing Dometic waste system.

Can I install this myself or do I need a technician?

Installation requires basic electrical knowledge and familiarity with RV waste systems. You'll need to disconnect 12V power, remove the old control module, and connect the new unit following Dometic's wiring diagram. If you're not comfortable working with RV electrical systems or waste plumbing, professional installation is recommended.

Why Choose Elkhart RV Parts?

We specialize in hard-to-find Dometic RV parts like this holding tank control module. Located in Elkhart, Indiana — the RV Capital of the World — we understand the urgency when your waste system fails. We stock genuine OEM Dometic parts and ship fast so you can get back on the road. Our parts experts know Dometic systems inside and out and are here to help ensure you get the exact replacement part you need.

Part Number 385310659
Voltage 12V DC
Application Holding Tank Sump Pump Control
Kit Type Complete Control Module Assembly
Manufacturer Dometic
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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