The McCormick 6704601A1 crankcase is a genuine OEM component designed for McCormick X4 series agricultural tractors, including models X4.20, X4.30, X4.40, X4.50, X4.60, X4.70, and X4.80. This essential engine part provides the structural housing for the crankshaft and other internal engine components, ensuring proper lubrication and protection. Manufactured to McCormick's stringent quality standards, it guarantees precise fitment and long-lasting durability for reliable engine operation.