25 pcs Contact Tips .023 fit Lincoln MIG Pak 140 MIGPak 11636 Welder Attention: Due to the existence of multiple versions of Lincoln's MIG Pak 140 welder, please check and verify that your welder's code number is 11636 before making a purchase. The code number for Lincoln welders can be found on the number plate of the welder and is a 5-digit code.