33 2026: Fits Caterpillar NUT TRACK 7K2017 NEW. One New Aftermarket Replacement Track Nut Fits Caterpillar (Fits CAT) Construction Equipment This aftermarket replacement track nut (also known as a segment nut) is used in the undercarriage system of Fits Caterpillar (Fits CAT) tracked machines, securing track shoes to the track links. It is a square nut used throughout a wide range of Fits CAT dozers, excavators, track loaders, and paving equipment. Specifications Thread Size: 9 16" 18 UNF Nut Type: Square Width Across Flats: 22mm Thickness: 19mm Weight: approximately 0. 1 lbs. Compatible Models Fits Caterpillar Dozers: D3, D3B, D4, D5, D5B, D5H, D5M, D5N, D5R XL, D5R LGP, D5R2, D6, D6B, D6C, D6D, D6G, D6G2 XL, D6H, D6H II, D6H XL, D6H XR, D6K, D6K LGP, D6K XL, D6K2, D6K2 LGP, D6K2 XL, D6M, D6N, D6N LGP, D6N XL, D6R, D6R II, D6R III, D6R LGP, D6R STD, D6R XL, D6T, D6T LGP, D6T XL, D6T XW, D6XE, D7, D7G, D7G2, D7H, D7R, D8 Fits Caterpillar Excavators: 205, 211, 213, 215, 215 LC, 225, 229, 311C, 312B, 312C, 312D, 314D, 320B, 321C, 322, 322 A, 325 A, 330 A, 5130B Fits Caterpillar Track Loaders: 933, 939, 953, 963 Fits Caterpillar Paving Road Equipment: AP650B, AP1050, AP1050B, BG225C, BG245B, BG245C Replaces Part Number(s): 7K2017, 7K2017 A Aftermarket Interchange Numbers CR1968 (Atlas Fits Case Ditch Witch Koehring); T126932 (Fits John Deere); R17415, R57375, V7K2017, CR1968 (Fits Case); 73177001, 79012421 (Fiat Fits Allis Fits New Holland Gradall Fits Hyundai); 8A5507 (Link Belt); 616200CL (Dresser) New aftermarket replacement part not remanufactured, not used.