How to Find the Code Number on Classic Lincoln Welders

The code number on classic Lincoln welders (SA-200, SA-250, Classic I, II, III) identifies the specific machine configuration and is essential for ordering the correct parts. Here's where to find it:

Method 1: Check the Faceplate (Primary Location)

The code number is typically stamped directly on the faceplate, usually between the model and serial number. Look for a 4-digit number.

SA-200 welder showing faceplate location

Close-up: Code number stamped on faceplate

Example: 4816 (SA-200)

Method 2: Check the Stator Housing

If the faceplate is missing or has been replaced without the code number, check the stator housing (also called the hex barrel or octagon housing) located under the hood. The code is stamped directly into the metal.

Under hood view showing stator housing

Code stamped on stator housing

Example: 4816 (SA-200)

Method 3: Check Support Frame Sticker (Alternative Location)

Some newer Lincoln welders may have a sticker with the code number on an internal support frame. This is less common on older machines, but worth checking if the above methods don't work.

Code number on support frame sticker

Example: 12964 (POWER MIG® 255C)

Important: Classic Lincoln welders (SA-200, SA-250, Classic I, II, III) typically have 4-digit code numbers. If you're having trouble locating the code number using the above methods, contact us with your machine's serial number and we can help identify the correct parts.

Conclusion

Finding your Lincoln welder's code number is essential for identifying the correct parts and maintaining your machine. Most classic Lincoln welders use 4-digit codes that can be found on the faceplate, stator housing, or occasionally on internal support frame labels.

Once you have your code number, you can use it to find the exact parts for your welder on our website or contact us for assistance with parts identification and ordering.