Product Description
M-40 169-604 Masterweld Miller Mig gun 12'400 Amp 100%$ Duty CycleMade in the USA by MasterweldM40 Miller 169-604 Style Mig Welding Gun 12', Replaces MIGmatic™ 169-604 400 Amp .035"-.045" with Miller Direct Connection. M-40 Style Gun may be used on all current Miller wire feeders and Millermatic systems. Miller M40 style Mig Gun is compatible with original equipment.Direct Connection for Miller M-40 Miller 169-604 Style aftermarket 400 Amp Mig Gun 12' is ready to weld. Unless you have Money to Burn - There is No Real Reason to Switch from the Tried-N-True Miller M-25 & M-40 Mig Guns that were Original to Your Equipment. Our aftermarket M25 and M40 welding gun replacements meet or exceed OEM standards and specifications. "Ready to weld" Mig gun includes contact tip, nozzle and liner. 
