Dometic Replacement Capacitor 3MFD Spade Terminal - Part# 290000104

DometicSKU: 290000104
Added to catalog: March 11, 2026
Last product update: June 5, 2026 at 10:03 PM

Sale price$62.02 Regular price$98.61
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This Dometic 3MFD replacement capacitor is essential for RV air conditioning systems, water heaters, and other appliances that require reliable motor starting and running capacitance. If your RV's AC unit is struggling to start or running inefficiently, a failed capacitor is often the culprit. This genuine OEM part restores proper electrical performance to get your comfort systems back online.

Key Features

  • 3 microfarad (MFD) capacitance rating for precise motor performance
  • Spade terminal connections for easy installation
  • 8mm stud mounting for secure fit in Dometic equipment
  • Genuine OEM Dometic part ensures compatibility and reliability
  • Direct replacement for original factory capacitors
  • Commonly used in Dometic air conditioning and appliance systems

Technical Specifications

Specification Value
Capacitance Rating 3 MFD
Terminal Type Spade Terminal
Stud Size 8mm
Part Number 290000104
Manufacturer Dometic
Application RV AC Units, Water Heaters, Appliances

Frequently Asked Questions

How do I know if my capacitor has failed?
Common signs include your RV air conditioner not starting, running weakly, making humming sounds without the compressor engaging, or appliances shutting off unexpectedly. A failed capacitor often has a burnt smell or visible bulging on the unit.
Is this capacitor compatible with my Dometic system?
This genuine OEM part is designed for Dometic equipment using 3MFD capacitors with spade terminals and 8mm studs. Check your existing capacitor or equipment manual to confirm these specifications match your system.
Can I install this myself?
Capacitor replacement requires basic electrical knowledge and proper safety precautions. Always disconnect power before working with electrical components. If you're uncomfortable with electrical work, consult a professional RV technician.

Why Choose 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 parts backed by expert support. When you need the right part, fast, Elkhart RV Parts delivers.

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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