Head As. 603-1658

Head As. 603-1658

Excavator    Caterpillar    323,395

Bucket Cylinder    Bore    120,00    Stroke    1.104,00    Hydraulic Cylinder

6031658

Compatible Brand: Caterpillar

Part Number: 603-1658 (6031658)

Superseded / Interchange Numbers: 603-1658, 6031658

Part Name: Excavator Bucket Cylinder Head Assembly / Gland

Technical Specifications: Bore: Fits 120.00 mm / Stroke: Fits 1,104.00 mm Cylinder / Weight: Not Specified (Heavy-Duty)

Compatible Machinery: Caterpillar Hydraulic Excavators (323, 395 series)

What It Does:

Serves as the heavy-duty cylinder head assembly (gland) mounted at the rod end of the bucket hydraulic cylinder on Caterpillar 323 and 395 series hydraulic excavators. It caps and seals the cylinder barrel under high hydraulic operating pressure while supporting, guiding, and aligning the reciprocating piston rod, housing the high-pressure rod seals, wiper seals, and wear guides.

Importance:

Critical for enduring high dynamic impact forces, heavy breakout loads, and continuous cycling during severe digging, trenching, and quarrying operations. Precision-machined seal grooves maintain high hydraulic pressure without fluid bypass, while absorbing severe side-thrust loads to prevent rod scoring and deflection. High-efficiency wiper seals prevent harsh abrasive dust, mud, and contaminants from entering the internal cylinder cavity.

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.