Adjustment Gp. 297-9150 Excavator Caterpillar 320C, 320C FM, 320D, 320D FM, 320D FM RR, 322C FM, 323D LN, 323D SA, 323E L, 324D FM, 324D FM LL, 325C, 325D, 325D L, 329D, 329D L, 329D LN, 329E, 329E L, 329E LN Adjustment Cylinder Bore Stroke Hydraulic Cylinder 2979150