Dometic Replacement Run Capacitor 70MFD/370V Round - Part# 290335364

DometicSKU: 290335364
Added to catalog: March 10, 2026
Last product update: June 6, 2026 at 11:42 AM

Sale price$126.82 Regular price$201.64
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This Dometic 70MFD/370V round run capacitor is an essential replacement component for RV air conditioning systems, refrigerators, and other appliances that rely on motor-driven cooling. If your RV's AC unit is struggling to start, running inefficiently, or making unusual sounds, a failed capacitor is often the culprit. This genuine OEM part restores proper electrical function to keep your cooling systems running reliably on the road.

Key Features

  • 70 microfarads (MFD) capacitance rating for precise motor operation
  • 370 volt (V) rating suitable for standard RV AC systems
  • Round cylindrical design fits original Dometic equipment mounting brackets
  • Genuine OEM Dometic part ensures compatibility and performance
  • Direct replacement—no modifications needed for installation
  • Durable construction rated for high-temperature RV environments

Technical Specifications

Specification Value
Capacitance 70 MFD
Voltage Rating 370V
Shape Round Cylindrical
Part Number 290335364
Manufacturer Dometic
Application RV Air Conditioning, Refrigeration Motors

Frequently Asked Questions

How do I know if my run capacitor has failed?

Common signs include: AC unit won't start or cycles on and off frequently, humming sound from the compressor with no cooling, reduced cooling performance, or a burning smell near the AC unit. A failed capacitor should be replaced immediately to prevent damage to the compressor motor.

Is this capacitor compatible with my Dometic RV air conditioner?

This 70MFD/370V round capacitor is a standard replacement for many Dometic cooling systems. To confirm compatibility, check your equipment's specifications or consult the original documentation. Our expert support team can also help you verify fitment before purchase.

Can I install this capacitor myself?

Capacitors store electrical charge and can be dangerous if mishandled. We recommend having a qualified RV technician perform the replacement. Always disconnect power before working with electrical components, and follow proper safety procedures.

Why Choose Elkhart RV Parts

We specialize in hard-to-find Dometic replacement parts for RV owners who demand genuine OEM quality. Shipping directly from Elkhart, Indiana—the RV capital of the world—we stock authentic Dometic components and provide expert support to help you find the exact part you need. When your RV's comfort depends on it, trust Elkhart RV Parts for reliable solutions.

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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