You are looking at a Mercedes New Re-seal kit, if you have one of these pumps 0442201002 on your Mercedes and it is leaking, this is the kit you need, Made in Germany, fits Bosch short version only, just like the one you see in the picture, With a small soldering gun and a few simple tools you can replace all the seals in less than an hour, the pictures posted will help you with the task, also it is a good idea to use small amount of petroleum grease (very little) to help when placing the seals.