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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 As. 191-7738

10 August 2026

Cylinder As. 191-7738

Backhoe Loader    Caterpillar    416D, 420D, 424D, 428D, 430D, 432D, 438D, 442D

Swing Cylinder    Bore    101,60    Stroke    249,00    Hydraulic Cylinder

1917738

22 kg

Compatible Brand: Caterpillar

Part Number: 191-7738 (1917738)

Superseded / Interchange Numbers: 191-7738, 1917738

Part Name: Backhoe Swing Hydraulic Cylinder Assembly

Technical Specifications: Bore: 101.60 mm / Stroke: 249.00 mm / Weight: ~22 kg / Hydraulic Cylinder

Compatible Machinery: Caterpillar Backhoe Loaders (416D, 420D, 424D, 428D, 430D, 432D, 438D, 442D series)

What It Does:

Serves as the backhoe swing hydraulic actuator operating in a paired setup on the swing casting pivot assembly of Caterpillar D series backhoe loaders. Powered by high-pressure hydraulic fluid, it extends and retracts to rotate the backhoe boom, stick, and bucket assembly side-to-side, controlling lateral trenching and side-dumping operations.

Importance:

Essential for providing precise swing control, smooth rotational positioning, and firm boom holding capability during excavation and material handling tasks. Built with a robust 22 kg heavy-walled barrel and high-strength forged rod, it effectively absorbs dynamic side-thrust loads and sudden rotational shock, 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.