One Aftermarket Replacement Excavator Boom & (Mono Boom) Cylinder Seal Kit Made To Fit the following Komatsu models: Boom: PC75UU-2, Cylinder: 21W-63-02131, Between 5001-10370, PC78US-5, Cylinder: 21W-63-02574, After 1001>. Boom (Mono Boom): PC75UU-2, Cylinder: 21W-63-02210, After 7075>. Replaces Part Number: 707-98-43200

• Rod: 70 mm, Bore: 120 mm
• Replaces Part Number: 707-98-43200

Rod: 70 mm, Bore: 120 mmStevensLake