WK31/4 Fuel Filter - main applications: CATERPILLAR 300 (Kettenbagger / Crawler Excavators). CLAAS Ares (Traktoren / Tractors), Arion (Traktoren / Tractors), Axion (Traktoren / Tractors). KRAMER ALLRAD (WACKER NEUSON) 5000-Serie, KT-Serie (Teleskoplader / Telescopic Loaders). MERCEDES-BENZ Unim