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Seckin Makine | Producer of Wheel Rim and Hydraulic Cylinder
Seckin Makine | Producer of Wheel Rim and Hydraulic Cylinder 50 Years

Cylinder Group 225-4591/349-4152/225-4599/225-4578/289-8003/289-8004/341-2182

19 August 2026

Cylinder Group 225-4591/349-4152/225-4599/225-4578/289-8003/289-8004/341-2182 

 Excavator    Caterpillar    320D, 320D L, 320D2, 320D2 L, 320E LN, 323D L, 323D2 L, 323E L, 325D L, 328D LCR, 329D, 329D L, 329E, 329E L, 329E LN

 Bucket Cylinder    Bore    135,00    Stroke    1.156,00    Hydraulic Cylinder

2254591/3494152/2254599/2254578/2898003/2898004/3412182 

212 kg

Compatible Brand: Caterpillar

Part Number: 349-4152 (3494152)

Superseded / Interchange Numbers: 225-4591 (2254591), 225-4599 (2254599), 225-4578 (2254578), 289-8003 (2898003), 289-8004 (2898004), 341-2182 (3412182)

Part Name: Excavator Bucket Hydraulic Cylinder Group / Assembly

Technical Specifications: Bore: 135.00 mm / Stroke: 1,156.00 mm / Weight: ~212 kg / Hydraulic Cylinder

Compatible Machinery: Caterpillar Hydraulic Track Excavators (320D, 320D L, 320D2, 320D2 L, 320E LN, 323D L, 323D2 L, 323E L, 325D L, 328D LCR, 329D, 329D L, 329E, 329E L, 329E LN series)

What It Does:

Serves as the primary bucket hydraulic cylinder actuator mounted on the stick and bucket linkage mechanism of Caterpillar 320, 323, 325, 328, and 329 series hydraulic excavators. Powered by high-pressure hydraulic fluid, it extends and retracts to control bucket curl (closing) and dump (opening) motions, delivering the mechanical force required to dig, crowd, breakout, and discharge heavy materials.

Importance:

Critical for defining bucket breakout force, rapid digging cycle times, and payload retention efficiency in tough earthmoving, quarrying, and excavation applications. Built with a robust 212 kg heavy-walled barrel and high-strength forged rod structure, it effectively absorbs extreme dynamic shock loads, rock impacts, and severe torsional stresses transmitted through the bucket linkage, 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.