AD3-152 direct injected Perkins engine upper gasket set. For the following models: MF135, 150, 230, 235, 240 & 245 with a direct injection diesel motor identified by the injectors setting in the head at an angle. 3.60 inch bore. (Direct injected engines have the injectors setting in the head at an angle)

A4-203 Perkins engine upper gasket set. For the following models: MF65 & Ind. 365 shovel loader with a regular diesel motor identified by the injectors setting vertically in the head. 3.60 inch bore. Alt. # 4222455M91

AD4-203 Perkins engine upper gasket set. For the following models: MF65, 165, early 255, Ind. 302, 304, 356, 3165 and 300 combine, with a direct injection diesel motor identified by the injectors setting in the head at an angle. 3.60 inch bore. Alt # 732691M91, 746051M91 & 4222455M91