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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 320-5936/510-7952/604-9016

10 August 2026

Cylinder Group 320-5936/510-7952/604-9016

Backhoe Loader    Caterpillar    428,434

Boom Cylinder    Bore    90,00    Stroke    852,00    Hydraulic Cylinder

3205936/5107952/6049016

77 kg

Compatible Brand: Caterpillar

Part Number: 604-9016 (6049016)

Superseded / Interchange Numbers: 320-5936 (3205936), 510-7952 (5107952)

Part Name: Backhoe Boom Hydraulic Cylinder Group

Technical Specifications: Bore: 90.00 mm / Stroke: 852.00 mm / Weight: ~77 kg / Hydraulic Cylinder

Compatible Machinery: Caterpillar Backhoe Loaders (428, 434 series)

What It Does:

Serves as the main boom hydraulic actuator controlling the elevation and lowering of the rear backhoe boom assembly on Caterpillar 428 and 434 series backhoe loaders. Powered by high-pressure hydraulic fluid, it extends and retracts to position the main boom during excavation, trenching, and transport cycles.

Importance:

Essential for providing main lifting capacity, maximum dumping height, and operational stability during heavy backhoe digging tasks. Built with a robust 77 kg heavy-walled barrel and high-strength forged rod, it effectively absorbs dynamic shock loads and severe bending forces, while advanced internal seals prevent fluid bypass under continuous heavy 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.