The Dometic cooling unit assembly is the heart of your RV refrigerator's temperature control system. This OEM replacement part restores proper cooling performance for Dometic RM2551, RM2554, and RM2555 models when the original unit fails or underperforms. Essential for maintaining food safety and comfort on the road.
- Complete cooling unit assembly with all integrated components
- Direct replacement for Dometic RM2551, RM2554, and RM2555 refrigerators
- Factory-sealed design maintains proper refrigerant charge and efficiency
- Restores three-way operation (120V AC, 12V DC, and LP gas)
- OEM Dometic part ensures compatibility and warranty coverage
- Includes all necessary mounting hardware and connections
| Specification | Details |
|---|---|
| Part Number | 4450006440 |
| Fits Models | RM2551, RM2554, RM2555 |
| Type | Absorption Cooling Unit Assembly |
| Power Options | 120V AC / 12V DC / LP Gas |
| Manufacturer | Dometic |
| Condition | New OEM |
Frequently Asked Questions
How do I know if my cooling unit needs replacement?
Signs include: refrigerator not cooling to proper temperature, frost buildup only on one side, ammonia smell inside the fridge, or visible damage to the cooling fins. If your RM2551, RM2554, or RM2555 is losing temperature hold or running constantly, the cooling unit assembly may be failing.
Can I install this cooling unit myself?
This is a technical repair requiring proper tools and knowledge of RV refrigerator systems. We recommend professional installation by a certified RV technician to ensure proper sealing, refrigerant charge, and safety. Improper installation can damage the unit or create safety hazards.
Is this a genuine Dometic part?
Yes, this is an authentic OEM Dometic part manufactured to original specifications. Genuine OEM cooling units maintain the three-way operation and efficiency ratings of your refrigerator. Using OEM parts preserves your RV warranty and ensures long-term reliability.
Why Elkhart RV Parts
We specialize in hard-to-find Dometic RV replacement parts and stock components that other retailers don't carry. Shipping directly from Elkhart, Indiana—the RV capital of the world—means faster delivery and expert support from technicians who know these systems inside and out. Every part is genuine OEM stock, backed by our commitment to getting RV owners back on the road.
| Brand | Dometic |
|---|---|
| Product_type | Refrigerator Cooling Unit Assembly |
| Part_number | 4450006440 |
| Compatible_models | RM2551RM2554RM2555 |
| Product_category | Service Parts |
| Oem_part | true |
| Includes_insulation | true |
| Insulation_type | Foam |
| Refrigerator_type | Absorption |
| Installation_requirement | Professional installation recommended |
| Condition | New |
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.