CATERPILLAR, 5207980 Fork, 520-7980 TINE GROUP, 60"" .................................. 1,150 LBSINCLUDES: Right and Left offset tines.REQUIRES: Carriage Group 520-7957 or 520-7968TINE WIDTH: 7"" (180mm)TINE THICKNESS: 3.5"" (90mm)", Attachment, Serial Number: 80510