The Dometic Connection Box (Part# 289018942) is a critical electrical component designed specifically for the RM8505 absorption refrigerator. This OEM connection box houses the electrical connections and wiring terminals that control refrigerator operation, ensuring safe and reliable power distribution between the control board, heating elements, and power sources. If you're experiencing electrical issues, intermittent operation, or complete refrigerator failure on your RM8505, a faulty connection box is often the culprit.

Key Features

• Genuine Dometic OEM Part: Factory-engineered specifically for RM8505 refrigerator models
• Complete Connection Housing: Includes all necessary terminals and wiring connections for proper electrical distribution
• Heat-Resistant Construction: Built to withstand the high temperatures generated near refrigerator heating elements
• Direct Replacement: Exact fit replacement for worn or damaged original connection boxes
• Safety Certified: Meets all electrical safety standards for RV appliance applications
• Durable Design: Engineered for long-term reliability in mobile RV environments

Technical Specifications

Part Number	289018942
Product Type	Electrical Connection Box
Compatible Model	RM8505
Refrigerator Type	Absorption (Gas/Electric)
OEM Manufacturer	Dometic

Compatible Refrigerator Models

Model Number	Description
RM8505	Dometic Absorption Refrigerator

Frequently Asked Questions

How do I know if my connection box needs replacing?

Common signs include intermittent refrigerator operation, complete failure to start on any power mode (gas or electric), burning smell near the refrigerator controls, visible corrosion or melted plastic on the connection box, or error codes related to electrical faults. If you've ruled out the control board and heating elements, the connection box is often the next component to inspect.

Is this connection box difficult to install?

Installation requires basic electrical knowledge and the ability to access the rear of your refrigerator. You'll need to disconnect shore power and propane, remove the exterior refrigerator access panel, disconnect the old connection box wiring (taking careful notes or photos), and connect the new box following the same wiring configuration. If you're not comfortable working with RV electrical systems, we recommend professional installation.

Will this work with other Dometic refrigerator models besides the RM8505?

This connection box is specifically engineered for the RM8505 model. While some Dometic refrigerators may appear similar, connection boxes are model-specific due to differences in wiring configurations, terminal layouts, and mounting points. Using the wrong connection box can result in improper operation or safety hazards. Always verify your exact refrigerator model number before ordering.

What causes connection boxes to fail?

Connection boxes typically fail due to heat exposure over time (they're located near heating elements), moisture intrusion causing corrosion, loose connections creating arcing and heat damage, or age-related deterioration of plastic housing and terminals. Regular inspection during annual RV maintenance can help catch issues before complete failure occurs.

Why Choose Elkhart RV Parts?

We specialize in hard-to-find Dometic refrigerator parts like this RM8505 connection box. Located in Elkhart, Indiana — the RV capital of the world — we understand the urgency when your refrigerator stops working. We stock genuine OEM Dometic parts and ship fast so you can get back on the road. Our team knows these refrigerators inside and out and can help you identify the right part the first time. When you need reliable Dometic parts backed by expert support, trust Elkhart RV Parts.