Cylinder Group 259-0778//225-4588/349-4148/179-9785/225-4575/289-7994/341-2177/565-6417

Excavator Caterpillar 320D, 320D L, 320D2, 320D2 L, 320E, 320E L, 320E LN, 328D LCR, 329D, 329D L, 329E, 329E L, 329E LN

Stick Cylinder Bore 150,00 Stroke 1.646,00 Hydraulic Cylinder

2590778//2254588/3494148/1799785/2254575/2897994/3412177/5656417

375 kg

Compatible Brand: Caterpillar

Part Number: 565-6417 (5656417)

Superseded / Interchange Numbers: 179-9785 (1799785), 225-4575 (2254575), 225-4588 (2254588), 259-0778 (2590778), 289-7994 (2897994), 341-2177 (3412177), 349-4148 (3494148)

Part Name: Excavator Stick Hydraulic Cylinder Group / Assembly

Technical Specifications: Bore: 150.00 mm / Stroke: 1,646.00 mm / Weight: ~375 kg / Hydraulic Cylinder

Compatible Machinery: Caterpillar Hydraulic Excavators (320D, 320D L, 320D2, 320D2 L, 320E, 320E L, 320E LN, 328D LCR, 329D, 329D L, 329E, 329E L, 329E LN series)

What It Does:

Serves as the stick (dipperstick) hydraulic actuator controlling arm extension and retraction on Caterpillar 320D, 320E, 328D, and 329D/E series hydraulic excavators. Positioned between the main boom and the bucket linkage, it converts high-pressure hydraulic fluid power into linear mechanical force to extend the arm out for maximum reach and pull it inward during digging and crowding operations.

Importance:

Essential for defining digging depth, reach, and stick breakout force during trenching, heavy excavation, and earthmoving tasks. Featuring a robust 375 kg heavy-walled barrel and high-strength forged rod structure, it effectively absorbs severe dynamic shock loads, rock impacts, and heavy bending stress, while advanced internal seals prevent fluid bypass under continuous high-pressure operation.

As Seçkin Makine, we manufacture this product as an aftermarket item fully equivalent to the original specifications in terms of raw materials, technical dimensions, and performance characteristics. This product comes with a 1-year warranty from the invoice date.