Cylinder Group 355-7377

Cylinder Group 355-7377

Wheel Loader    Caterpillar    988K

Lift Cylinder    Bore    210,00    Stroke    1.050,00    Hydraulic Cylinder

3557377

682 kg

Compatible Brand: Caterpillar

Part Number: 355-7377 (3557377)

Superseded / Interchange Numbers: 355-7377, 3557377

Part Name: Wheel Loader Lift Hydraulic Cylinder Group / Assembly

Technical Specifications: Bore: 210.00 mm / Stroke: 1,050.00 mm / Weight: ~682 kg / Hydraulic Cylinder

Compatible Machinery: Caterpillar Wheel Loaders (988K series)

What It Does:

Serves as the primary lift hydraulic actuator mounted on the loader lift arm assembly on Caterpillar 988K series heavy wheel loaders. Powered by high-pressure hydraulic fluid, it extends and retracts to raise and lower the loader boom and heavy bucket assembly under demanding payload conditions.

Importance:

Critical for defining total lifting capacity, maximum dump clearance height, and operational cycle speed during heavy mining, quarrying, and bulk material loading operations. Built with a massive 682 kg heavy-walled barrel and high-strength forged rod structure, it effectively absorbs severe vertical shock loads, dynamic impact forces, and heavy bending stress, while advanced internal seals prevent fluid bypass under continuous high-pressure 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.