Rod As. 358-8451/358-8450/358-8454/387-0330/399-5853

Excavator Caterpillar 349E, 349E L, 349E L HVG, 349E L VG, 349F L

Boom Cylinder Bore 170,00 Stroke 1.490,00 Hydraulic Cylinder

3588451/3588450/3588454/3870330/3995853

183 kg

Compatible Brand: Caterpillar

Part Number: 399-5853 (3995853)

Superseded / Interchange Numbers: 358-8451 (3588451), 358-8450 (3588450), 358-8454 (3588454), 387-0330 (3870330)

Part Name: Excavator Boom Hydraulic Cylinder Piston Rod Assembly

Teknik Özellikler / Technical Specifications: Mating Cylinder Bore: 170.00 mm / Stroke: 1,490.00 mm / Weight: ~183 kg / Cylinder Piston Rod Assembly

Compatible Machinery: Caterpillar Heavy Hydraulic Excavators (349E, 349E L, 349E L HVG, 349E L VG, 349F L series)

What It Does:

Serves as the primary heavy-duty piston rod assembly for the boom hydraulic cylinder mounted between the main frame and boom structure on Caterpillar 349E and 349F series heavy hydraulic excavators. It converts high-pressure linear hydraulic power from the cylinder barrel directly into mechanical lifting and lowering force, operating the entire front linkage (boom, stick, and bucket) under severe payload and digging conditions.

Importance:

Critical load-bearing structural component that withstands the entire front attachment weight, heavy cyclic fatigue, and immense digging reaction forces in mining, quarrying, and mass excavation applications. Precision-machined, induction-hardened, and hard-chrome plated from a 183 kg high-tensile alloy steel structure, it provides outstanding resistance to deflection, surface scoring, and impact fatigue, ensuring optimal seal life and preventing high-pressure fluid bypass.

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.