This is a Case 621D Loader with Bucket that can go right into your mods folder, after you download it. I have tested this in single career mode, using my maps and it works just fine.
I based this from the original: http://www.lsuk.info/downloads/29/12086
Specializations for Loader
Specializations for Bucket
Umbau/Skin: Alfkiller, Fisker & Bindesboel
Script: Face, sven777b