This is a Lincoln OEM six blade fan for a Lincoln SA-200 SA-250 Gas Continental engine. Fits the following welders:

Classic 300G, machine codes: 10659, 10912, 11135
Classic I (Cont TM27), machine codes: 10068, 10069, 9835, 9968, 9999
Classic III (Cont TM27), machine codes: 10072, 10033
Pipeliner 200G, machine codes: 10660, 10913, 11136
SA-200 Continental F-162, machine codes: 3417, 3418, 3554, 3555, 4113, 4149, 4150, 5336, 5337,4744, 4745, 4815, 4816, 4843, 4998, 4999, 5065, 5107, 5108, 5141, 5376, 5495, 5496, 5500,5537, 5568, 5604, 5642, 5660, 5696
SA-200-F163 Cont., machine codes: 5840, 7213, 7214, 5841, 5957, 6072, 6073, 6132, 6339, 6340, 6345, 6552, 6632, 6633, 6634, 6779, 6791, 6792, 6934, 7044, 7074, 7078, 7167, 7168, 7242
SA-250 F163 Cont., machine codes: 8745, 9054, 8917, 9439, 9024, 9330, 9461, 9671
SA-350 CDN 2.7, machine code: 9833

If you have any questions, give us a call at (602) 850-7399.