Trane SFCAP10440 Oval Run Capacitor 10 MFD 370V/440V Universal Replacement

The Trane SFCAP10440 is a precision-engineered 10 MFD oval run capacitor, serving as the essential electrical "brain" for your HVAC system's motor phase-shifting. Designed to provide a constant electrical charge to the start windings of fan motors, it ensures smooth rotation and optimal torque during every cooling or heating cycle. Specifically developed for Trane and American Standard furnace and A/C series, this 440V rated capacitor manages the voltage-to-current ratio required for high-efficiency operation. By maintaining a stable magnetic field within the motor, it prevents the overheating and "stalling" that often lead to motor burnout, ensuring your system's ventilation and exhaust components operate at factory-specified speeds.

Key Features

• Genuine Trane Service First Part SFCAP10440: A factory-authorized OEM replacement that meets the exact capacitance and heat dissipation requirements of American Standard and Trane equipment.
• Universal 370V/440V Dual Rating: Rated for 440VAC, this "Service First" capacitor safely replaces both 370V and 440V units, offering increased dielectric strength and resistance to voltage spikes.
• Fixes Slow or Stuck Fan Motors: Directly resolves common "no-start" issues where the indoor blower or outdoor fan motor hums but fails to spin without manual assistance.
• Internal Safety Interrupter: Features a UL-recognized pressure-sensitive disconnector that automatically cuts power if internal pressure rises, preventing the case from leaking or rupturing.
• Space-Saving Oval Form Factor: Designed in a compact oval shape to fit precisely into tight control cabinets and mounting straps found in standard 48-frame motor housings.

Product Details

• Brand: Trane / American Standard / Service First
• Manufacturer: Trane Technologies
• Part #: SFCAP10440
• UPC/SKU: 662425455241 / SFCAP10440
• Weight: 0.4 lbs
• Capacitance: 10 MFD (uF)
• Voltage: 370 / 440 VAC Universal
• Shape: Oval
• Frequency: 50 / 60 Hz
• Tolerance: +/- 5%
• Operating Temp: -40°C to +70°C

🛠️ HVAC Depot Pro Tip

"Take a Picture First"—before removing the old capacitor, photograph the wire colors and their positions on the terminals. This is particularly important in Trane units where the same color wire might be used for different motor speeds. During your Diagnostic Check, use a capacitance-capable multimeter to test the old unit; if the reading is below 9 MFD (more than 10% below the 10 MFD rating), it must be replaced. Also, check for "leaking oil" or a "bulged" casing—these are definitive signs of failure. Always discharge the capacitor with a 20k-ohm resistor or a specialized tool before handling to avoid electrical shock.

Cross-Reference

• Superseded / Legacy Numbers: CPT00073, CPT-0073, CPT00074, CPT00070
• Affiliated / Related Numbers: CPT01142, CPT-1142, CPT02316
• Drawing / Equivalent Numbers: 27L566, 97F9002, 12010, 12910
• JARD / Mars Equivalents: 12710, 12910, 14910

Model Compatibility

• Trane XE / XL Series (Suffixes: XE60, XE70, XE78, XE80, XE90, XL80, XL90)
• American Standard Freedom (Suffixes: 78, 80, 90, 95)
• Trane TWE / TWP (Suffixes: 018, 024, 030, 036, 042)
• Trane XR / XB Series (Suffixes: XR11, XR12, XB13, XR14)
• American Standard Silver / Gold (Suffixes: 80, 90, 95)
• Bay / GAT Series (Suffixes: GAT018, GAT024, GAT030)