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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 259-3970/609-6566

11 August 2026

Cylinder Group 259-3970/609-6566 

Articulated/Off Highway    Caterpillar    AD45B

Steering Cylinder    Bore    127,00    Stroke    761,00    Hydraulic Cylinder

2593970/6096566 

Compatible Brand: Caterpillar

Part Number: 609-6566 (6096566)

Superseded / Interchange Numbers: 259-3970 (2593970)

Part Name: Underground Articulated Truck Steering Hydraulic Cylinder Group

Technical Specifications: Bore: 127.00 mm / Stroke: 761.00 mm / Weight: Not Specified (Heavy-Duty) / Hydraulic Cylinder

Compatible Machinery: Caterpillar Underground Articulated Mining Trucks (AD45B series)

What It Does:

Serves as the steering hydraulic actuator mounted across the articulation joint of Caterpillar AD45B underground articulated mining trucks. Powered by high-pressure hydraulic fluid, it extends and retracts to pivot the tractor and trailer frames relative to each other, controlling machine steering and directional maneuvering in subterranean haulage operations.

Importance:

Critical for maintaining precise steering responsiveness, tight maneuvering capability, and operational safety during heavy payload hauling through narrow underground galleries and mine drifts. Built with a heavy-walled barrel and high-strength forged rod structure, it effectively absorbs dynamic side-thrust loads, severe torsional stress, and impact forces at the articulation joint, 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.