Cylinder Group 165-8633/490-4734

Cylinder Group 165-8633/490-4734

Track Type Tractor    Caterpillar    D8L, D9N, D9R, D9T

Lift Cylinder    Bore    120,65    Stroke    1.570,00    Hydraulic Cylinder

1658633/4904734

175 kg

Compatible Brand: Caterpillar

Part Number: 490-4734 (4904734)

Superseded / Interchange Numbers: 165-8633 (1658633)

Part Name: Track-Type Tractor Blade Lift Hydraulic Cylinder Group

Technical Specifications: Bore: 120.65 mm / Stroke: 1,570.00 mm / Weight: ~175 kg / Hydraulic Cylinder

Compatible Machinery: Caterpillar Heavy Track-Type Tractors / Dozers (D8L, D9N, D9R, D9T series)

What It Does:

Serves as the primary blade lift hydraulic actuator operating in a paired setup on Caterpillar D8 and D9 series heavy track-type dozers. Powered by high-pressure hydraulic fluid, it extends and retracts to raise and lower the front dozer blade, controlling blade cutting depth, earth pushing pitch, and carry height.

Importance:

Critical for providing optimal blade penetration force, lift capacity, and smooth height control during severe mining, land clearing, and heavy dozing operations. Built with a robust 175 kg heavy-walled barrel and high-strength forged rod, it effectively absorbs dynamic shock loads, severe vertical impact forces, and mechanical stress, 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.