Lennox 19J21 – FirstChoice 19J21 Run Capacitor, 15 MFD, 440V, Oval                                 The Lennox 19J21 (FirstChoice 19J21) is a high-quality 15 MFD run capacitor designed for reliable, long-term performance in residential and light commercial HVAC systems. Built with a durable oval metal housing, this 440V capacitor provides stable electrical support for motors in air conditioners, furnaces, and heat pumps. It helps ensure smooth compressor and fan motor operation, reduces power fluctuations, and supports efficient system performance under demanding conditions.

This 15 microfarad run capacitor is a dependable replacement for many OEM models used in Lennox and universal HVAC applications. With its robust construction and industry-standard terminals, the FirstChoice 19J21 offers quick installation and consistent operating stability, making it an ideal choice for service technicians and homeowners performing routine maintenance.

Key Features

• 15 MFD run capacitor for HVAC compressor and fan motors
• 440V rating for enhanced durability and protection
• Oval metal case for compact fit and improved heat dissipation
• Reliable performance for air conditioners, furnaces, and heat pumps
• Universal style replacement for many OEM HVAC capacitors
• Designed to maintain smooth motor startup and continuous operation
• Easy to install with standard terminal configuration

Specifications

• Brand: FirstChoice
• Model/Part Number: 19J21
• Type: Run Capacitor
• Capacitance: 15 MFD
• Voltage Rating: 440V
• Shape: Oval
• Application: HVAC compressor and fan motors