The John Deere L100517 is a genuine OEM piston engineered for a wide range of John Deere 4039, 4045, 6059, and 6068 series diesel engines. This essential engine component is designed to ensure optimal combustion and reliable engine performance across numerous John Deere agricultural equipment, construction machinery, and industrial applications. Manufactured to John Deere's stringent quality standards, the L100517 piston provides precise fitment and durable operation, contributing to the overall longevity and efficiency of your machinery. It is commonly used in tractors, combines, cotton pickers, sprayers, loaders, excavators, skidders, feller bunchers, and motor graders.