OEM Replacement Intelligence

OEM Capacitor Replacement Parts & Cross-Reference Guide

For HVAC professionals sourcing reliable capacitor replacements, understanding OEM specifications and cross-references is critical. This guide covers run capacitors, start capacitors, and dual run capacitors for leading brands like Carrier, Trane, Rheem, and Lennox. We help source the right parts to ensure optimal system performance and longevity. Contact us with your model number, serial number, part number, or equipment label photo for assistance. Product availability may vary by supplier, stock status, and manufacturer policy.

Why OEM Matters

Precision Fit & Compatibility

OEM capacitors are designed to meet exact manufacturer specifications, ensuring seamless fit and function within your HVAC system. This reduces installation errors and potential equipment damage.

Reliable Performance & Longevity

Using OEM capacitors helps maintain system efficiency and reliability by matching the original electrical ratings and quality standards, reducing premature failures and downtime.

Simplified Cross-Reference & Sourcing

OEM cross-reference guides help technicians identify equivalent capacitor replacements across brands and aftermarket options, streamlining procurement and reducing guesswork.

Capacitor Cross-Reference Guide

Capacitors are rated by microfarads (µF), voltage, and type (run, start, dual run). Below is a technical comparison table to assist in identifying equivalent capacitors across popular HVAC brands. Always verify capacitor ratings against your equipment specifications before installation.

Capacitor Type Carrier Part # Trane Part # Rheem Part # Lennox Part # Common Specs
Run Capacitor HC45-370 TRC45-370 RHC45-370 LRC45-370 45 µF, 370 VAC, Round
Start Capacitor HC70-440 TRC70-440 RHC70-440 LRC70-440 70 µF, 440 VAC, Oval
Dual Run Capacitor HC35/5-370 TRC35/5-370 RHC35/5-370 LRC35/5-370 35/5 µF, 370 VAC, Dual Round
Note: Capacitor ratings may vary by model and equipment age. Always confirm specifications before ordering.

Explore OEM Capacitor Parts by Brand

Honeywell Controls
Carrier OEM Parts
Trane OEM Parts
Rheem OEM Parts

How to Identify Your Capacitor Part

  1. Locate the Capacitor on Your Equipment: Typically found near the condenser fan motor or compressor, capacitors are cylindrical or oval-shaped components.
  2. Read the Part Label: Identify key specifications such as microfarads (µF), voltage rating (VAC), and capacitor type (run, start, dual run). Note the manufacturer’s part number if visible.
  3. Record Equipment Details: Document your HVAC unit’s model number, serial number, and equipment label information to assist in accurate part sourcing.
  4. Capture a Photo: Take a clear picture of the capacitor label and equipment nameplate to share with HVACProSales for expert assistance.
  5. Contact HVACProSales: Provide the collected information via our contact form to help us source the correct OEM capacitor replacement.

Need Help Finding the Right Capacitor?

Contact HVACProSales with your model number, serial number, part number, or equipment label photo. Our experts will assist you in sourcing the correct OEM capacitor replacement to keep your systems running efficiently.

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Related Resources

Frequently Asked Questions

What is the difference between a run capacitor and a start capacitor?

A run capacitor is designed to continuously operate with the motor, improving efficiency and power factor. A start capacitor provides an initial boost of energy to start the motor and then disengages. Dual run capacitors combine both functions for systems with multiple motors.

How do I know the correct capacitor size for my HVAC unit?

Capacitor size is specified by microfarads (µF) and voltage rating (VAC) on the capacitor label or equipment nameplate. Always match these ratings exactly to ensure proper motor operation and avoid damage.

Can I use aftermarket capacitors instead of OEM parts?

Aftermarket capacitors may be compatible if they meet the exact electrical specifications and quality standards. However, sourcing OEM capacitors through HVACProSales helps ensure precision fit and reliable performance.

What information should I provide to get help sourcing a capacitor?

Provide your HVAC unit’s model number, serial number, capacitor part number if available, and a clear photo of the equipment label or capacitor. This information enables HVACProSales to identify and source the correct OEM replacement.