| New OEM-Equivalent Component Supplier | - Hydraulic pumps and control valves
- Engine service components
- Electrical sensors and seals
- Filters, gaskets and maintenance kits
| Suitable for the 20-ton excavator class; compatibility depends on the machine serial range, hydraulic configuration and engine version. | Suitable for the 30-ton excavator class; pump displacement, valve configuration and electrical connections must match the serial number. | Request dimensional drawings, material specifications, pressure ratings, batch traceability and a written warranty. For hydraulic parts, test reports should include operating pressure and leakage results. | Usually offers new stock, consistent production batches, export packaging and easier repeat purchasing for fleet maintenance. | Do not order by model name alone. Confirm the exact part number, old-part photographs, connector type, mounting dimensions and machine serial number. |
| Remanufactured Hydraulic Specialist | - Main hydraulic pumps
- Swing motors and travel motors
- Hydraulic cylinders
- Final-drive assemblies and control valves
| Appropriate when the original unit is repairable and its displacement, port arrangement and mounting pattern can be identified. | Appropriate for heavy-duty hydraulic assemblies when the supplier can match the pump group, regulator setting, port layout and control system. | A reliable supplier should provide inspection records, replaced-component details, pressure-test data, core-return conditions and a defined warranty period. | Can reduce purchase cost and downtime compared with a completely new assembly, especially when the buyer can return the original core. | Confirm whether the quoted price includes the complete assembly, regulator, coupling, sensors, seals and shipping of the core unit. |
| Undercarriage and Wear-Part Supplier | - Track chains and track shoes
- Carrier rollers and lower rollers
- Front idlers and sprocket segments
- Buckets, teeth, cutting edges and side cutters
| Suitable for the PC200-7 size class, but track pitch, link count, shoe width, roller diameter and bolt pattern must be checked. | Suitable for the PC300-8 size class, subject to exact track gauge, link count, shoe width, sprocket profile and frame configuration. | Ask for hardness data, heat-treatment information, wear-layer thickness, steel grade, dimensional tolerances and product photographs before shipment. | Often provides multiple shoe widths and wear options, allowing buyers to select components for quarry, earthmoving, roadwork or general construction conditions. | Track components are not safely interchangeable between PC200-7 and PC300-8. Match every component to the complete undercarriage system. |
| Inspected Used-Part and Dismantling Supplier | - Cab assemblies and doors
- Counterweights, frames and tanks
- Control units and wiring harnesses
- Used engines, pumps and attachments
| Can supply original used components from machines in the same model family, provided the serial range and configuration are compatible. | Can supply large structural and hydraulic components, but condition and configuration vary significantly between production batches and operating regions. | Require dismantling photographs, operating-hour records where available, cold-start or bench-test evidence, corrosion disclosures and a clear return policy. | Useful for older machines, discontinued components and urgent repairs where a new replacement is unavailable or uneconomical. | Confirm hidden wear, cracks, weld repairs, contamination, missing sensors and regional electrical differences. Used hydraulic parts should be tested before installation. |
| Aftermarket Wear and Maintenance-Kit Supplier | - Filter sets and service kits
- Seal kits and O-rings
- Bucket teeth and adapters
- Hoses, belts and routine replacement parts
| Commonly available for routine PC200-7 maintenance, but filter dimensions, bypass-valve settings, seal materials and hose fittings must match. | Commonly available for routine PC300-8 maintenance, with special attention to filter capacity, hydraulic cleanliness requirements and hose working pressure. | Request filter efficiency data, seal-material information, hose pressure ratings, temperature limits, product shelf life and conformity documents where required. | Usually provides competitive pricing, mixed-item containers, flexible minimum order quantities and convenient scheduled maintenance packages. | Check that replacement filters and seals meet the required specification; a visually similar part may have different filtration, pressure or temperature performance. |