Honeywell 40003916-014 Replacement Motor

The Honeywell 40003916-014 Replacement Motor is a high-performance 24Vac actuator designed specifically for V8043D series zone valves. This 60 Hz synchronous motor is an essential component for maintaining reliable hydronic heating system control, providing the high-torque output necessary to actuate the valve against system pressure. Featuring 18-inch lead wires and a integrated manual lever, this replacement zone valve motor is built for rapid field installation, allowing contractors to restore system operation without replacing the entire valve body. The Honeywell 40003916-014 is engineered to withstand ambient temperatures up to 125?F (52?C), ensuring long-term durability in demanding mechanical rooms. When troubleshooting a stuck zone valve or a failing V8043 actuator, this OEM-spec motor provides the exact electrical and mechanical profile needed to interface with spring return to open valve configurations, ensuring precise water flow management and zone isolation in residential and light commercial applications.

• Universal Compatibility: Drops directly into Honeywell V8043D series and compatible V-series zone valve bodies.
• Streamlined Installation: 18-inch color-coded lead wires provide ample length for direct wiring to transformers or zone controllers.
• Serviceability: The manual lever allows technicians to manually open the valve for system filling, venting, or emergency bypass.
• Thermal Resistance: Rated for a maximum ambient temperature of 125?F to ensure performance in high-heat environments.
• OEM Reliability: Ensures the correct timing and torque specs required to prevent water hammer or incomplete valve closure.

Is the 40003916-014 compatible with V8043E models?
No, this motor is specifically designed for the V8043D series. For V8043E or other end-switch models, verify the specific actuator SKU to ensure correct electrical termination and switch logic.

Can I replace this motor without draining the hydronic system?
Yes, the 40003916-014 replacement actuator can typically be swapped by removing the powerhead or motor cover, provided the valve body remains intact. Always ensure the 24V power supply is disconnected before service.

What causes these motors to fail prematurely?
Common failure points include seized valve stems increasing load on the motor or prolonged exposure to temperatures exceeding the 125?F ambient limit. Always check for mechanical binding in the valve body during replacement.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.