Notes: 642599 STUD BOLT M18X1.5X75 is original CARRARO product. 642599 STUD BOLT M18X1.5X755 is commonly used in transmissions/axles/engines 643805, 644154, 644154, 644154, 644154, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849