The McCormick 6617547A1 Piston is an authentic OEM engine component essential for maintaining optimal compression and power delivery in various agricultural machinery. This high-quality piston ensures reliable performance and durability. It is specifically designed for McCormick CX series tractors, including models CX70, CX75, CX80, CX85, CX90, CX95, CX100, CX105, and CX110. Additionally, it provides compatibility with Case IH JXU series tractors (JX70U, JX80U, JX90U, JX100U) and Case IH CX series (CX70, CX80, CX90, CX100), as well as New Holland TL and TLA series tractors (TL70, TL80, TL90, TL100, TL70A, TL80A, TL90A, TL100A). This part may supersede or be equivalent to part number 6617547A2.