The Dometic K9018-09 is a complete 4 amp fuse assembly designed specifically for Dometic refrigerators and cooling appliances. This OEM replacement includes the fuse, protective cap, and holder in one complete unit, providing essential circuit protection for your RV refrigerator's electrical system. When your Dometic refrigerator stops working on AC or DC power, a blown fuse is often the culprit—this assembly restores proper electrical protection and gets your cooling system back online.
Key Features
- Complete Assembly: Includes 4 amp fuse, protective cap, and holder—everything needed for installation
- Circuit Protection: Safeguards refrigerator electrical components from power surges and overloads
- OEM Quality: Genuine Dometic replacement part engineered to exact factory specifications
- Easy Installation: Direct replacement design allows quick fuse replacement without special tools
- Universal Fit: Compatible with multiple Dometic refrigerator models using 4 amp fuse protection
- Durable Construction: Heat-resistant materials designed for the demanding RV environment
Technical Specifications
| Part Number | K9018-09 |
| Fuse Rating | 4 Amp |
| Components Included | Fuse, Cap, and Holder |
| Application | Dometic Refrigerators |
| Part Type | Electrical Protection Component |
Frequently Asked Questions
How do I know if my refrigerator fuse is blown?
If your Dometic refrigerator isn't working on AC or DC power but the control panel lights up, a blown fuse is likely. You can visually inspect the fuse—a blown fuse will have a broken wire visible inside the glass tube or appear blackened. Always check the fuse before replacing expensive control boards.
Can I use a regular automotive fuse instead of this assembly?
While the fuse itself may be similar, this complete assembly includes the holder and cap designed specifically for Dometic refrigerators. Using the correct OEM assembly ensures proper fit, secure connections, and reliable circuit protection. Improvised solutions can lead to poor connections and potential safety issues.
What causes refrigerator fuses to blow repeatedly?
If fuses blow repeatedly, there's an underlying electrical problem—possibly a short circuit, failing heating element, or damaged wiring. Replace the fuse to restore operation, but if it blows again, have a qualified RV technician diagnose the root cause before replacing additional fuses.
Is this the only fuse in my Dometic refrigerator?
Most Dometic refrigerators have multiple fuses protecting different circuits. This 4 amp fuse typically protects specific control circuits. Check your refrigerator's wiring diagram or service manual to identify all fuse locations and ratings for your specific model.
Why Choose Elkhart RV Parts?
We specialize in hard-to-find Dometic refrigerator parts that keep your RV cooling system running. Located in Elkhart, Indiana—the RV Capital of the World—we understand the urgency when your refrigerator goes down. We stock genuine OEM Dometic parts and ship fast so you can get back on the road. Our team knows Dometic systems inside and out and can help you identify the exact part you need.
| Brand | Dometic |
|---|---|
| Part number | K9018-09 |
| Product type | Fuse Assembly |
| Amperage | 4 Amp |
| Voltage | 12V DC |
| Includes | Fuse CartridgeProtective CapHolder |
| Compatible appliances | RefrigeratorsWater Heaters12V DC Components |
| Compatible series | RM SeriesNDR Series |
| Product category | Service Parts |
| Oem | true |
| Replacement part | true |
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.

