MF135 & MF150 Diesel Engine Kits MF135 and MF150, MF230, MF235 with eng. s/n ending with D and DL Industrials: 20, 40, 2135. Forklift: 2500, 2200, 4500 AD3-152 Perkins Direct Injection Diesel Engine.(Injectors are at an angle in cylinder head) 3.602 Inch Bore.