This genuine McCormick 4208130M1 piston is engineered for Perkins 1000 Series engines, including 1004-4, 1004-4T, 1004-40, 1004-40T, 1004-40TA, 1006-6, 1006-6T, 1006-60, 1006-60T, and 1006-60TA models. Featuring a 100mm bore, 100mm piston height, 58.5mm compression height, 38mm pin diameter, and 78mm pin length, it ensures optimal engine performance. It is a direct fit for numerous McCormick CX, MC, MTX, X60, X70, XTX series and Massey Ferguson 3000, 4000, 5000, 6000, 7000, 8000 series tractors.