All of our new parts are aftermarket replacements. Compatible with Massey Ferguson Tractor(s) 178 (Engine s/n 729574 - earlier). Replaces Massey Ferguson OEM nos 3620407M91, 887879M91, 887884M91. Pressure Plate Type: Dual Stage.All States Ag Parts Item No. This item is in the category "Business & Industrial\Heavy Equipment, Parts & Attachments\Heavy Equipment Parts & Accessories\Transmission, Drivetrain & Axles". The seller is "tractorpartsasap" and is located in this country: US. This item can be shipped to United States.