K55HXHDD-8562 Replacement Motor: The Complete Guide to Finding the Right HVAC Condenser Fan Motor

When your air conditioning system's condenser fan motor begins to fail—making unusual noises, running intermittently, or stopping altogether—finding the right replacement becomes an urgent priority. For countless residential HVAC systems across North America, the K55HXHDD-8562 replacement motor has become a trusted solution. But what exactly is this motor, and why has it become such a frequently sought-after component in the HVAC replacement market?

Understanding the K55HXHDD-8562 Motor

The K55HXHDD-8562 is a permanent split capacitor (PSC) condenser fan motor manufactured by GE and Emerson. This single-phase motor is commonly used in outdoor condenser units for air conditioning and heat pump systems, particularly in equipment manufactured by ICP, Heil, Tempstar, and Comfortmaker. It is one of the most frequently replaced components in residential HVAC systems, primarily because it powers the outdoor condenser fan—the component responsible for rejecting heat from the refrigerant and ensuring efficient system operation.

Condenser fan motors operate in harsh outdoor environments—exposed to rain, dust, extreme heat, and temperature fluctuations year after year. Over time, the bearings wear down, the windings degrade, and the motor may begin to draw excessive current or fail to start altogether. The K55HXHDD-8562 is particularly vulnerable to failure because it runs continuously during cooling cycles. When this motor fails, the condenser cannot reject heat effectively, leading to reduced cooling capacity, higher energy bills, and potentially catastrophic compressor failure if left unaddressed.

Technical Specifications at a Glance

Before purchasing a K55HXHDD-8562 replacement motor, it is essential to understand its core specifications to ensure compatibility with your existing system:

The motor's 0.5-inch shaft diameter, 2.44-inch shaft length, and 5.20-inch mounting hole spacing are critical physical dimensions that determine whether a replacement motor will fit your existing mounting bracket and fan blade assembly.

Why the K55HXHDD-8562 Is So Commonly Replaced

The K55HXHDD-8562 is a workhorse electric motor specifically designed to drive the fan blades sitting atop a condenser coil. Its job is non-negotiable—without it, the entire cooling system cannot function properly.

Several factors contribute to the high replacement rate of this motor model:

Environmental Exposure – Outdoor condenser units face the full brunt of weather conditions. Rain, snow, dust, and debris all take their toll on motor components over time. Desert dust, in particular, accelerates condenser fan motor wear, making annual maintenance especially important in arid climates.

Continuous Operation – During peak cooling season, the condenser fan motor runs for extended periods. This continuous duty cycle places significant stress on bearings and windings, eventually leading to failure.

Electrical Stress – Voltage fluctuations, power surges, and aging capacitors can all contribute to premature motor failure. Many technicians recommend replacing the capacitor at the same time as the motor to ensure reliable operation.

Insulation Degradation – Over time, the electrical insulation within the motor windings can weaken, leading to erratic behavior or complete failure. This is a common issue reported by HVAC technicians and DIYers alike.

OEM Applications and Compatible Systems

The K55HXHDD-8562 is primarily used as a condenser fan motor in outdoor HVAC units manufactured by ICP (International Comfort Products), including brands such as Heil, Tempstar, and Comfortmaker. The 1/5 HP rating and 1075 RPM speed make it suitable for many residential air conditioning systems.

This motor is also known by several alternative part numbers and designations:

• OEM Part Number: 1086598

• GE/Emerson Part Number: K55HXHDD-8562

• Alternative Designation: K055HDD8562

• OEM Cross-Reference: HC37GZ003B

• Alternative Model: YDK-150-6A50(K55HXHDD-8562)-CJK

Compatible Replacement Models and Cross-References

One of the most important aspects of finding the right K55HXHDD-8562 replacement motor is understanding which models are interchangeable. The following part numbers are direct replacements or compatible alternatives:

Finding the Right Match

When the exact model number isn't available, matching motor specifications is the next best approach. Key specifications to match include:

1. Horsepower – The replacement must match the 1/5 HP rating

2. Voltage and phase – Ensure the replacement is rated for 208-230V single-phase operation

3. RPM – The replacement should match the 1075 RPM speed

4. Frame size – The replacement should have a 48Y frame

5. Shaft dimensions – The replacement must have a 0.5-inch diameter shaft of sufficient length (at least 2.44 inches)

6. Enclosure type – TEAO enclosure is essential for outdoor condenser applications

7. Capacitor rating – The motor requires a 3μF/370V capacitor

What to Look for in a Quality Replacement

When shopping for a K55HXHDD-8562 replacement motor, consider the following factors:

Build Quality

Look for motors with high-quality copper windings, which offer better conductivity and durability than aluminum alternatives. High-quality ball bearings will extend the motor's service life significantly. The TEAO enclosure is essential for outdoor applications, providing protection against moisture and debris ingress.

Thermal Protection

The K55HXHDD-8562 comes equipped with an automatic thermal overload protection feature. This safety mechanism shuts the motor down if it overheats, preventing damage to the windings. When selecting a replacement, ensure that it includes similar thermal protection.

Included Components

Many aftermarket replacements include the necessary capacitor and ground wire. The K55HXHDD-8562 typically requires a 3μF/370V capacitor. When purchasing a replacement, confirm what is included in the package to avoid unexpected additional costs.

Price vs. Value

OEM replacements can cost significantly more than quality aftermarket alternatives. While OEM parts offer guaranteed compatibility, many aftermarket motors meet or exceed OEM specifications at a fraction of the cost. The K55HXHDD-8562 replacement motor is available from various suppliers with prices typically ranging from $100 to $200 depending on the source and included components.

Installation Tips and Best Practices

Replacing a K55HXHDD-8562 condenser fan motor is a DIY-friendly project for those with basic mechanical and electrical skills, though professional installation is always recommended.

Before You Begin

1. Disconnect power – Turn off all power to the outdoor HVAC unit at the main electrical panel

2. Document wiring – Take photographs of the wiring connections to the relay and capacitor before disconnecting anything

3. Remove the grille – Take off the protective grille and any other components blocking access to the motor

4. Verify specifications