Dometic Service Capacitor Kit 55/15 MFD - Part# 4450010374

The Dometic Service Capacitor Kit (55/15 MFD) is a genuine OEM replacement for RV air conditioning and refrigeration systems that require dual-capacitor operation. If your Dometic AC unit won't start, runs weakly, or makes humming sounds without cooling, a failed capacitor is often the culprit. This kit restores proper electrical function to get your climate control working again.

Key Features

• Dual capacitor design: 55 MFD + 15 MFD for complete system operation
• Genuine OEM Dometic part ensures perfect compatibility
• Direct replacement for original failed capacitors
• Restores AC startup torque and cooling performance
• Common failure point on older Dometic cooling systems
• Quick installation—no special tools required

Technical Specifications

Frequently Asked Questions

How do I know if my capacitor has failed?

Common signs include: AC unit hums but won't start, weak cooling output, unit cycles on and off, or complete loss of function. Capacitors typically fail after 10-15 years of use. If your RV AC is behaving abnormally, a capacitor failure is worth investigating before replacing the entire compressor.

Can I install this capacitor myself?

Yes, but safety is critical. Always disconnect power at the breaker before working on capacitors—they store electrical charge even when powered off. If you're not comfortable working with electrical components, have a qualified RV technician handle the installation to avoid injury or system damage.

Will this kit fit my Dometic model?

This is a common OEM service kit used across many Dometic AC and refrigeration units. However, capacitor specifications vary by model and year. Verify your exact part number in your Dometic documentation or contact our expert support team—we can confirm compatibility before you buy.

Why Choose Elkhart RV Parts

We specialize in hard-to-find Dometic replacement parts that other retailers don't stock. Shipping directly from Elkhart, Indiana—the RV capital of the world—we guarantee genuine OEM parts with expert support to help you identify the exact component you need. When your RV's comfort depends on it, trust the specialists.