Lincoln L3545-22 Arc Polarity Switch Complete Kit K804-1 K3091-1 Welder DC-400
Posted on August 13, 2026 | By admin
Clean, fully functional Lincoln Electric OEM. Arc polarity switch, part number L. 3545-22 (service number 9SL3545-22). Removed from a working Lincoln Electric DC-400 multi process welder. Includes polarity/process switch, all terminal mounting and connecting hardware (bolts, washers, lock washers), selection knob, DC-400 process selection faceplate, and front standoff plate with both working selection verification switches and selector. Continuity checked through all poles in all detent positions. Contact faces inspected, no pitting, arc erosion, or material transfer. Positive detent action, no shaft play, no cracked insulation, all terminals intact and undamaged. Listed by Lincoln parts suppliers as fitting the Multi Process Switch K3091-1 and Multi Process Switch K804-1. Verify against your unit’s parts list before ordering. We are happy to provide updated pictures within reason, just message your question and we will respond within 24 hours. If you need an item urgently, we are happy to help get you back up and running as fast as possible. Priority, priority express, next-day air and will pack and drop off immediately with tracking. Arc polarity switch, polarity switch, polarity reversing switch, rotary switch, drum switch, selector switch, multi process switch, multiprocess switch, K804, K804-1, K3091, K3091-1, Lincoln welder parts, welding machine switch, submerged arc, multi-operator, OEM replacement.