Capacitor, Dual Run, 35/5 uF, 370 Volt VAC, Round

Professional-Grade HVAC Support – Lennox 89M73 Dual Run Capacitor for Demanding Applications

The Lennox 89M73 Dual Run Capacitor is a precision-engineered component developed to support the simultaneous operation of both the compressor and fan motor in HVAC systems. With a rating of 35/5 microfarads at 370 VAC, this OEM-approved part is tailored for reliable performance in residential and light commercial Lennox units.

Constructed to meet the operational needs of high-efficiency systems, the 89M73 is trusted in field applications where durability, stability, and electrical integrity are non-negotiable. Whether replacing a failing capacitor or completing a scheduled system overhaul, this component provides the quality assurance contractors rely on in the field.

Built for System Demands

This capacitor offers more than baseline performance. Its dual-section configuration streamlines the power delivery process to both primary motor circuits, reducing electrical strain and enhancing startup reliability in variable conditions. It’s an essential part for technicians seeking performance consistency across Lennox-compatible HVAC platforms.

Performance Advantages

• ✅ 370V Operating Range – Designed to meet voltage requirements in conventional and high-efficiency systems.
• ✅ 35/5 µF Dual Rating – Provides optimal microfarad values for balanced fan and compressor operation.
• ✅ OEM-Certified Fit – Designed specifically for Lennox systems to maintain compatibility and simplify replacement.
• ✅ Reliable Aluminum Canister – Corrosion-resistant, non-PCB construction supports longevity in demanding environments.
• ✅ Engineered for Continuous Duty – Built to handle repeated cycles under load with minimal capacitance drift.

Technical Summary

• Capacitance: 35/5 µF
• Voltage Rating: 370 VAC
• Form Factor: Round dual run
• Application: Compressor and fan motor combined support
• Brand/Model: Lennox 89M73

Installation Guidance

Installation should be conducted by a certified HVAC technician. Proper precautions must be taken to discharge the existing capacitor, verify wiring alignment, and ensure terminal connections are secure. Always confirm capacitance with a calibrated multimeter prior to system re-energization. Observe all code requirements for replacement components in HVAC service environments.

Contractor-Focused Features

• ✅ System-Grade Reliability – Suited for consistent seasonal load demands in multi-ton HVAC systems.
• ✅ Direct Replacement – Streamlines service calls with plug-and-play compatibility for Lennox OEM setups.
• ✅ Compact Diameter – Simplifies mounting in tight control compartments and condensing units.
• ✅ Field-Proven Design – Trusted in commercial service fleets and installation crews for consistent job performance.

Keep Systems Running at Spec

Choose the Lennox 89M73 Dual Run Capacitor when your project requires OEM precision and long-term reliability. As a field-replaceable component, this part ensures system balance, reduces premature wear on motors, and maintains operational efficiency across temperature cycles and voltage fluctuations.