Pellethead Carrier 3905 Condenser Fan Motor – 5KCP39EGS070S/5KCP39EGY823S, 1/4 HP, 1100 RPM, 208-230V Replacement

Overview

The Pellethead Carrier 3905 condenser fan motor is designed as a flexible replacement option for a variety of HVAC condenser units. With a 1/4 horsepower rating and a steady 1100 RPM, this motor is built to resume cooling performance in compatible systems. It operates on standard 208-230V power and features a clockwise or counterclockwise orientation based on the shaft end, making it suitable for a broad range of equipment footprints. The shaft measures 1/2" x 1.5", and the motor is packaged in a compact 4" housing. A square stud pattern of 5-1/4" x 5-1/4" helps with secure mounting in common condenser housings, while the ambient tolerance reaches up to 40°C, ensuring reliable performance in typical residential and light commercial environments.

Why choose Pellethead for your replacement needs

• Versatile replacement compatibility — this motor is designed to stand in for multiple part numbers across brands, including popular Bryant Payne and Genteq references, helping simplify sourcing during replacements.
• Easy installation — the product is engineered for straightforward mounting and wiring, reducing downtime when upgrading your cooling system. Key dimensions (4" case length and 5-1/4" x 5-1/4" stud pattern) support a broad set of existing condensers.
• Quality you can rely on — Pellethead carries a long-standing reputation for dependable replacement parts, backed by practical design and durable construction.
• Enhanced cooling potential — while not a guarantee, the motor is designed to support stable compressor cycling and effective heat rejection under typical operating conditions.
• Solid warranty — a 2-year manufacturer warranty provides peace of mind for installation and long-term use.

Key specifications at a glance

• Horsepower: 1/4 hp
• Speed: 1100 RPM
• Voltage: 208-230V
• Rotation: CCW shaft end (shaft 1/2" x 1.5")
• Ambient: 40°C
• Motor housing length: 4 inches
• Mounting pattern: 5-1/4" x 5-1/4" stud spacing
• Part coverage: replaces multiple 5KCP39EGS070S/5KCP39EGY823S variants and related Bryant Payne Dayton units

Installation and compatibility tips

Before replacing, confirm your unit’s voltage, rotation, and mounting footprint align with the listed specifications. Prepare for a secure fit by verifying the 4" housing size and the 5-1/4" stud pattern. If the shaft end orientation differs, you may need to adapt wiring to ensure the correct CCW rotation for your system.

In use, expect a straightforward upgrade path that keeps airflow and cooling in check across compatible condensers. While specific results will vary by system, many technicians report restored performance and a smoother replacement experience when using a purpose-built motor like this one.