Cylinder Group 490-4729/124-4771/6E1102/250-5861/606-7158/652-8988

Track Type Tractor Caterpillar 844, 844H, 844K, D9N, D9R, D9T

Lift Cylinder Bore 114,30 Stroke 1.425,00 Hydraulic Cylinder

4904729/1244771/6E-1102/2505861/6067158/6528988

159 kg

Compatible Brand: Caterpillar

Part Number: 652-8988 (6528988)

Superseded / Interchange Numbers: 490-4729 (4904729), 124-4771 (1244771), 6E-1102 (6E1102), 250-5861 (2505861), 606-7158 (6067158)

Part Name: Blade Lift Hydraulic Cylinder Group

Technical Specifications: Bore: 114.30 mm / Stroke: 1,425.00 mm / Weight: ~159 kg / Hydraulic Cylinder

Compatible Machinery: Caterpillar Track-Type Tractors / Dozers & Wheel Dozers (D9N, D9R, D9T, 844, 844H, 844K series)

What It Does:

Serves as the primary hydraulic actuator controlling the vertical elevation and penetration depth of the front dozer blade on Caterpillar D9N, D9R, D9T track dozers, and 844 series wheel dozers. Powered by high-pressure hydraulic fluid, it extends and retracts to lift and lower the blade assembly during heavy pushing and earthmoving cycles.

Importance:

Critical for maintaining high productivity and precise blade positioning in heavy mining, quarrying, and land-clearing operations. Built with a robust 159 kg heavy-walled barrel and high-strength forged rod, it effectively absorbs extreme dynamic shock loads and severe vertical 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.