The McCormick 6526577M2 is a genuine OEM cylinder block designed for a wide range of agricultural machinery, including various Massey Ferguson, Landini, and McCormick tractor models. This essential engine component is compatible with Perkins A4.236, A4.248, A4.212, A4.203, A4.318, A6.354, and A6.372 engine series, ensuring precise fit and reliable performance. Constructed to original specifications, it provides the foundation for engine integrity and optimal operation. Cross-referenced with OEM part numbers 6526577M1, 3637408M91, and 3381648M91.