High-quality boom cylinder seal kit 440-00042BKT for Doosan DX255, ensuring reliable sealing and stable hydraulic performance for excavator boom repair applications.
The 440-00042BKT boom cylinder seal kit is engineered for Doosan DX255 excavators, providing a complete sealing solution for boom hydraulic cylinders. It is widely applied in excavator maintenance and overhaul operations where hydraulic sealing performance directly affects machine efficiency and reliability.
All components in the kit, including piston seals, rod seals, wiper seals, and O-rings, are manufactured under strict quality standards. Advanced materials such as polyurethane and NBR are used to ensure excellent resistance against high pressure, abrasion, and hydraulic oil, allowing stable operation in demanding construction and mining environments.
This boom cylinder repair kit is highly suitable for distributors, repair workshops, and fleet owners who require consistent quality and stable supply. With YNF Machinery, bulk supply is supported, helping B2B customers reduce downtime, maintain inventory stability, and improve profitability in their local markets.
| Item | Specification |
|---|---|
| Product Name | Boom Cylinder Seal Kit |
| Part Number | 440-00042BKT |
| YNF Number | YNF18317 |
| Machine Model | Doosan DX255 |
| Application | Boom hydraulic cylinder repair |
| Material | PU, NBR, PTFE |
| Seal Type | Rod seal, piston seal, wiper seal, O-ring |
| Installation Position | Boom cylinder |
| Brand | YNF |
| Origin | China |
| MOQ | 1 set |
| Payment Terms | T/T, L/C, Western Union |
| Shipping Method | Air, Sea, Express |
| Delivery Time | 3–7 days (in stock) |
| Packaging | Standard export packaging |
| Application Field | Description |
|---|---|
| Construction Industry | Excavation and lifting operations |
| Mining Operations | Heavy-duty earthmoving tasks |
| Infrastructure Projects | Road, bridge, and building works |
| Hydraulic Maintenance | Boom cylinder sealing and repair |
| Equipment Refurbishment | Excavator rebuilding and performance recovery |
Q1: Is this seal kit compatible with Doosan DX255?
Yes, it is fully compatible with Doosan DX255 using part number 440-00042BKT.
Q2: What is included in the kit?
The kit includes piston seals, rod seals, dust seals, and O-rings for complete boom cylinder repair.
Q3: Can bulk supply be supported?
Yes, YNF Machinery supports wholesale and long-term B2B supply.
Q4: What is the main advantage?
It ensures stable sealing performance, reduces leakage, and extends cylinder service life.
YNF Machinery provides high-quality boom cylinder seal kits for B2B customers worldwide. With stable quality, competitive pricing, and reliable supply, distributors and repair workshops are supported to expand their market and maximize profit margins. Bulk orders are fully supported.
