Cat 320, 320L, 320N, 320S Excavator Boom Cylinder Seal Kit Dozer Tilt 38mm x 63mm Seal Kit

38mm x 63mm Seal Kit Serial Numbers: Up to 11488

Part #: 4444914

Cylinder #: AT121334

Pin - Front Block

2 Piece Piston All Serial Number

Cat 320, 320L, 320N, 320S Excavator Boom Cylinder Seal Kit Dozer Tilt 38mm x 63mm Seal KitCylinder Rebuild Repair Seal Kit for Caterpillar Model 320, 320L, 320N, 320S Excavators Please Choose the Option that matches your Machine Serial Number Group 1: 1KL00001 Up; 1TL00001 Up; 1XM00001 Up; 2DL00001 Up; 7WK00001 Up; 8LK00001 Up; 9KK00001 Up; Cylinder #s: 0875491 Rod: 85 mm Bore: 120 mm Serial Number Group 2: 3XK00001 Up; 6KM00001 Up; 4ZJ00001 Up; 9WG00001 Up; Cylinder #s: 0875496 Rod: 85 mm Bore: 120 mm