171377 - Miller 171377 Replacement Drive Roll Knob

Secure Your Wire Feed System with the 171377 Drive Roll Knob

In the world of MIG welding, consistency is key. The smallest components often play the most critical roles in ensuring a stable arc and high-quality weld. The Miller 171377 Drive Roll Knob is one such essential component, designed to securely fasten the drive rolls within your wire feeder assembly. Whether you are operating a heavy-duty industrial setup or a garage workshop, a lost or damaged drive roll knob can bring production to a halt. This replacement part is engineered to meet the exact specifications of the original equipment, ensuring a perfect fit and reliable performance.

This knob is compatible with a wide range of Miller wire feeders, including the popular Millermatic series and the rugged SuitCase portable feeders. It features a durable, high-impact plastic construction that can withstand the rigors of daily use in welding environments. The design incorporates a textured surface, allowing operators to easily tighten or loosen the knob by hand without the need for additional tools. This tool-less operation is vital for quick changeovers when switching between wire sizes or types, minimizing downtime and keeping your workflow efficient.

Over time, threads on retention knobs can wear down, or the component can be misplaced during maintenance. Having a spare 171377 knob in your maintenance kit is a smart proactive measure. By ensuring your drive rolls are seated correctly and tightly, you prevent issues like wire slippage and misalignment, which are common causes of poor weld quality. Trust in quality replacement parts to keep your equipment running at peak performance.

Key Benefits

• Perfect Fit: Designed specifically for Miller wire drive assemblies.


• Easy Operation: Hand-tighten design allows for quick roll changes.


• Durability: Built to resist wear and impact in industrial settings.