This is a damaged Sachs 504 / 505 cylinder. The piston has a chunk out of it. This is damaged and sold for parts only. Sold AS-IS
This part will only work in 504 / 504 engines.
Check and make sure this is the part you need before ordering. This will come as pictured. If you do not see it in the picture, it is not included. This is a used part. Wearable parts, if any, may need replaced.