Weil McLain 381-800-475 5″ Damper and Actuator Assembly

Description

The Weil McLain 381-800-475 is a genuine OEM 5″ Damper and Actuator Assembly designed for use with compatible Weil McLain boiler systems. This assembly integrates a precision-engineered damper with a matched actuator to deliver reliable, automated airflow control — a critical function for maintaining combustion efficiency and safe boiler operation.

Product Overview

As a factory-original replacement component, the 381-800-475 ensures a proper fit and consistent performance within your Weil McLain system. The damper regulates the flow of combustion air or flue gases, while the integrated actuator provides the mechanical force needed to open and close the damper on demand. Together, they help optimize fuel efficiency, reduce standby heat loss, and support safe system cycling.

Key Features

• Genuine Weil McLain OEM replacement assembly
• 5″ damper size for precise airflow regulation
• Integrated actuator and damper in a single assembly for simplified installation
• Designed for reliable, repeatable operation in demanding boiler environments
• Helps maintain combustion efficiency and reduce standby heat loss
• Supports proper system cycling and safe boiler operation

Application

This assembly is intended as a direct OEM replacement for Weil McLain boiler systems requiring a 5″ damper and actuator. Always consult your Weil McLain equipment documentation or a qualified HVAC technician to confirm compatibility with your specific boiler model before installation.

Why Choose OEM Parts?

Using genuine Weil McLain replacement components ensures your system operates within original design specifications, preserving warranty coverage, system reliability, and long-term performance. Aftermarket substitutes may not meet the same dimensional or operational tolerances required for safe boiler operation.