Cat Pumps part 6100 (12 bottles of 6107) crankcase oil for Cat and most other pressure washer pumps. Case of 12 bottles 21 oz each. Cat pump oil is ISO 68 Special Formula premium grade hydraulic oil.
Order this part for a case of 12 – 21 Ounce Bottles. For single bottles of this oil, see our part# 6107 (see below under related items)