07020-00000 Fitting Grease Fits Komatsu ModelsOne New Aftermarket Replacement Grease Fitting (Zerk) for Komatsu Construction Equipment This straight grease fitting (also known as a grease zerk) is used throughout Komatsu excavators, wheel loaders, bulldozers, and other heavy construction equipment as a lubrication access point on pins, bushings, cylinders, and other wear components. Keeping these fittings in good condition ensures grease reaches critical pivot points and extends the life of