The Nortek 328P4005H37N31A550 Run Capacitor is an essential OEM electrical component designed to support the continuous operation of HVAC compressors and motors. With a 40 microfarad (uF) rating, this round, 370V capacitor ensures efficient energy usage and reliable performance in residential and light commercial systems. Key Features Genuine Nortek replacement part 40uF capacitance for consistent motor performance 370 Volt AC rating for HVAC applications Operates on 50/60Hz systems Round metal can design for compact fit Specifications Part Numbers: 328P4005H37N31A550, 01-0084, 32177820 Type: Run Capacitor Capacitance: 40uF Voltage: 370V AC Frequency: 50/60Hz Shape: Round Compatible Models Nortek ES4BD-024KA Nortek ES4BD-030KA Nortek ES4BD-036KA Also fits additional Nortek and Gibson air conditioning units Why Choose This Item The Nortek 328P4005H37N31A550 Run Capacitor ensures your HVAC system runs smoothly by delivering stable power to motors and compressors. With its OEM-quality construction, perfect electrical specifications, and dependable operation, it?s an ideal choice for maintaining comfort and efficiency in your home or business.