12.5 uF MFD ±5% 370/440 VAC CBB65 Oval Run Start Capacitor - Fits Condenser, Heat Pump - Replaces 97F9003
12.5 uF 370/440 VAC CBB65 oval run start capacitor for condenser and heat pump units.
Four-step installation guide for 12.5 uF 370/440 VAC CBB65 run start capacitor in HVAC condenser units.
Infographic showing signs to replace a CBB65 run start capacitor for AC condenser and heat pump units.
BlueStars 10uF 370/440VAC CBB65 run capacitor for AC condenser and heat pump systems.
12.5 uF CBB65 oval run capacitor with dimensions and terminal view for condenser and heat pump units.
Specification chart for 12.5 uF 370/440 VAC CBB65 run start capacitor with technical details.
Diagram of 12.5 uF oval run capacitor showing 2-terminal layout with Common, Fan, and Hermetic compressor labels.
BlueStars 12.5 uF 370/440 VAC CBB65 run start capacitor showing metalized film and aluminum case construction details.
Educational infographic explaining how to choose a CBB65 run start capacitor for HVAC condensers and heat pumps.
12.5 uF 370/440 VAC CBB65 oval run start capacitor for AC condenser and heat pump repair.
Technician installing a 12.5 uF 370/440 VAC CBB65 oval run start capacitor into an HVAC condenser unit.
Infographic showing 12.5 uF run capacitor applications for air conditioners, refrigerators, heat pumps, and compressors.
12.5 uF 370/440 VAC CBB65 oval run start capacitor for condenser and heat pump units.
Four-step installation guide for 12.5 uF 370/440 VAC CBB65 run start capacitor in HVAC condenser units.
Infographic showing signs to replace a CBB65 run start capacitor for AC condenser and heat pump units.
BlueStars 10uF 370/440VAC CBB65 run capacitor for AC condenser and heat pump systems.
12.5 uF CBB65 oval run capacitor with dimensions and terminal view for condenser and heat pump units.
Specification chart for 12.5 uF 370/440 VAC CBB65 run start capacitor with technical details.
Diagram of 12.5 uF oval run capacitor showing 2-terminal layout with Common, Fan, and Hermetic compressor labels.
BlueStars 12.5 uF 370/440 VAC CBB65 run start capacitor showing metalized film and aluminum case construction details.
Educational infographic explaining how to choose a CBB65 run start capacitor for HVAC condensers and heat pumps.
12.5 uF 370/440 VAC CBB65 oval run start capacitor for AC condenser and heat pump repair.
Technician installing a 12.5 uF 370/440 VAC CBB65 oval run start capacitor into an HVAC condenser unit.
Infographic showing 12.5 uF run capacitor applications for air conditioners, refrigerators, heat pumps, and compressors.

12.5 uF MFD ±5% 370/440 VAC CBB65 Oval Run Start Capacitor - Fits Condenser, Heat Pump - Replaces 97F9003

0.00
$14.39
Save 11% $16.11
$14.39
In stock
Fast Delivery Delivery options available at checkout
30 Day Returns Return Policy

Secure and trusted checkout with

  • Mastercard
  • Visa
  • American Express
  • Discover
  • JCB
  • Diners Club
CONFIRM THIS PART FITS
Enter appliance or equipment model number to verify compatibility with this part

12.5 uF MFD ±5% 370 VAC or 440 VAC CBB65 Oval Run Start Capacitor

Key Features

  • Capacitance: 12.5 microfarads (uF/MFD)
  • Tolerance: ±5%
  • Voltage Rating: 370 VAC or 440 VAC
  • Frequency: 50/60 Hz
  • Operating Temperature Range: -40 °C to +70 °C
  • Design: Oval shape, CBB65 model type
  • Construction: Aluminum case with steel cover
  • Terminals: Standard 1/4 inch male spade terminals
  • Safety: Integrated pressure-sensitive interrupter

Replaces / Cross-Reference Part Numbers

This is a universal replacement for single run capacitors with matching specifications. To ensure a correct match, verify the following on your original capacitor:

  • Capacitance: 12.5 uF or 12.5 MFD
  • Voltage: 370V or 440V (a 440V rated capacitor can safely replace a 370V)
  • Shape: Oval (ensure physical dimensions allow for proper mounting)

Compatibility & Fitment

Used in a wide range of single-phase motor applications, including:

  • HVAC compressors and condenser fan motors
  • Air conditioning units
  • Heat pumps
  • Furnace blower motors
  • Pool and well pump motors
  • Other AC motor run applications

When to Replace

A failing capacitor can cause motor issues. Consider replacement if you observe the following symptoms:

  • Motor hums but does not start or struggles to start
  • Fan or compressor does not engage
  • Visible damage to the existing capacitor, such as a bulging top or fluid leakage
  • Capacitance measurement is outside the ±5% tolerance range

Installation Tips

  • Disconnect all electrical power to the equipment before servicing.
  • Safely discharge the existing capacitor by shorting the terminals with a properly insulated tool.
  • Confirm the capacitance (uF/MFD) and voltage rating of the new capacitor match the original part's requirements.
  • Note the wiring configuration before removing the old capacitor.
  • Ensure the new capacitor is securely mounted and all terminal connections are tight.
12.5 uF MFD ±5% 370/440 VAC CBB65 Oval Run Start Capacitor - Fits Condenser, Heat Pump - Replaces 97F9003 1
12.5 uF MFD ±5% 370/440 VAC CBB65 Oval Run Start Capacitor - Fits Condenser, Heat Pump - Replaces 97F9003 2
12.5 uF MFD ±5% 370/440 VAC CBB65 Oval Run Start Capacitor - Fits Condenser, Heat Pump - Replaces 97F9003 3
12.5 uF MFD ±5% 370/440 VAC CBB65 Oval Run Start Capacitor - Fits Condenser, Heat Pump - Replaces 97F9003 4
  • 12.5 uF MFD ±5% 370/440 VAC CBB65 Oval Run Start Capacitor - Fits Condenser, Heat Pump - Replaces 97F9003 1

    Step 1

    Turn off the power and locate the capacitor
  • 12.5 uF MFD ±5% 370/440 VAC CBB65 Oval Run Start Capacitor - Fits Condenser, Heat Pump - Replaces 97F9003 2

    Step 2

    Discharge any stored electricity by shorting the terminals
  • 12.5 uF MFD ±5% 370/440 VAC CBB65 Oval Run Start Capacitor - Fits Condenser, Heat Pump - Replaces 97F9003 3

    Step 3

    Take a photo or note how the wires connect. Disconnect wires & install the new capacitor.
  • 12.5 uF MFD ±5% 370/440 VAC CBB65 Oval Run Start Capacitor - Fits Condenser, Heat Pump - Replaces 97F9003 4

    Step 4

    Reassemble and test

Compatible Models

Locate the model number of your appliance or equipment on the manufacturer's label and use it to check compatibility before ordering

Loading compatible models…

FAQs

This capacitor is dual-rated for both 370V and 440V applications. It is perfectly safe to use as a replacement for a 370V capacitor, and it provides the necessary voltage tolerance for 440V systems, making it a versatile choice for most standard HVAC condenser and fan motor setups.
This unit is a direct replacement for OEM part number 97F9003 and is compatible with various CBB65 oval run capacitor specifications requiring 12.5 MFD.
If your AC condenser fan motor is struggling to start, humming without spinning, or if the fan only spins after being manually pushed, the capacitor is likely failing. Additionally, if the top of the capacitor case appears domed or bulging, it has reached the end of its service life and requires immediate replacement.
Installation is straightforward and typically takes 10–15 minutes. You will need a screwdriver to access the electrical panel and a pair of needle-nose pliers to disconnect the spade terminals. Always ensure the power to the unit is completely shut off at the disconnect box or breaker before beginning work.
Yes. Capacitors store a significant electrical charge even after the power is turned off. Before touching the terminals, use an insulated screwdriver to short across the terminals to safely discharge any remaining energy. Always verify the power is off with a multimeter before proceeding.
Run capacitors are subject to extreme heat and electrical stress within the condenser unit. Over time, the internal dielectric material degrades, especially in hot climates or if the unit is frequently cycled. Regular exposure to high temperatures is the primary cause of internal fluid breakdown and eventual failure.