Prouduct Description
| Part Name | Boom Hydraulic Cylinder | PN | 4248320 4310241 4236054 4340511 |
| Model | EX400 EX400-3 EX400-5 | Warranty | One Year |
| Appliaction | For Hitachi EX400 Excavator | OEM | YES |
| Condition | New | Packing | Wooden Case |
Tube: Made from high-strength 25Mn steel, identical to OEM standards. Sandblasted and coated with a dual-layer baked paint finish for durability.
Rod: Fully heat-treated piston rod with high-frequency hardening (HRC 55) and industrial-grade chrome plating for extended wear resistance.
Seal: Equipped with premium NOK (Japan) and SKF (USA) seals, ensuring an ultra-low oil leakage rate below 1%.
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Company Information
GuangZhou GuoLi Engineering Machinery Co., Ltd. over 16 years of experience in the field of excavator hydraulic cylinders, establishing itself as a reliable worldwide provider and producer. Our company is engaged in the supply of spare parts for such equipment manufacturers as: JCB, CASE, VOLVO, DOOSAN, HYUNDAI, HITACHI, KOMATSU, CATERPILLAR, SHANTUI,SUMITOMO,KUTO,KUBOTA
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