281726 - Miller Windtunnel Assembly for EnPak and Bobcat Welders

Genuine Miller Cooling Assembly Replacement

The Miller 281726 Windtunnel with Components is a critical replacement assembly designed specifically for Miller EnPak and Bobcat series engine-driven machines. As an authorized distributor of Miller Electric products, we provide this genuine OEM part to ensure your equipment operates at factory specifications. This component is central to Miller's proprietary Wind Tunnel Technology™, a design feature that significantly enhances reliability by managing internal airflow.

In industrial environments, airborne contaminants can wreak havoc on sensitive electronics. The Windtunnel assembly is engineered to separate the cooling stream from the electronic components. It forces high-velocity air over the parts that require it most—such as rectifiers and transformers—while keeping dirt, dust, and debris away from circuit boards and controls. Replacing a damaged or compromised windtunnel is essential for maintaining the thermal management and longevity of your power system.

This kit includes the windtunnel structure and associated components necessary for a complete replacement. By using genuine Miller parts, you ensure correct fitment and material durability that matches the original manufacturing standards. This part is vital for preventing overheating and ensuring that the machine's duty cycle is not compromised by inefficient cooling.

Key Technical Benefits:

• Restores designated airflow paths for optimal thermal exchange.


• Maintains the integrity of the internal ingress protection system.


• Direct replacement guarantees alignment with existing mounting points.