MARS 11023 378-440 MFD Round Start Capacitor (110/125V)

The MARS 11023 378-440 MFD Round Start Capacitor (110/125V) is a MARS capacitor for HVAC repair and replacement work. Use it when the part number 11023 and the listed specifications match the equipment being serviced.

Start Capacitor 110 Round 378-440 Microfarad 110/125 Volt Phenolic Case

Key Specs

• Type: Capacitor
• Voltage: 110v, 125v
• MFD: 378-440
• Shape: Round
• Product Type: Capacitor

Replacement Notes

Captured replacement references include 65023, TMJ378A. Confirm supersession details against the manufacturer parts list.

Expert Verdict

Reviewed by the SuperArbor Pro Desk: choose this part when the existing component label and unit documentation match 11023 and the spec set above. It is best suited for targeted HVAC service repairs where exact fitment matters more than broad universal compatibility.

FAQs

What is the MARS 11023 used for?

It is a capacitor for compatible MARS HVAC equipment. Match the part number 11023 and the equipment service literature before ordering or installing.

Which specs should I verify before purchase?

Verify the spec set shown for this part: Type: Capacitor; Voltage: 110v, 125v; MFD: 378-440; Shape: Round; Product Type: Capacitor. The replacement should match the existing component and the unit documentation.

Does the electrical rating need to match exactly?

Yes. Confirm MFD rating 378-440 and voltage rating 110v, 125v against the failed component label. Do not substitute a different rating unless the equipment manufacturer allows it.

Are replacement or superseded references available?

Captured cross-reference data includes 65023, TMJ378A. Verify any supersession directly against the manufacturer parts list before installation.

Who should install this HVAC component?

A qualified HVAC technician should install and test the capacitor. Disconnect power first, follow lockout procedures, and confirm safe operation after replacement.

Safety and Installation Notes

Disconnect power before service. HVAC electrical and combustion-related components should be installed and tested by a qualified technician. After installation, confirm wiring, mounting, airflow or fluid routing as applicable, and normal system operation.