Boom Arm Bucket Hydraulic Cylinder For Hyundai R210‑7 Excavator Hydraulic Cylinder
Heavy‑duty aftermarket boom, arm and bucket cylinder assembly for Hyundai R210‑7 excavator, high‑pressure hydraulic cylinders with complete oil seal kits for construction machinery maintenance.
Key Features
- Exact OEM‑equivalent 3‑cylinder set perfectly matched for Hyundai R210‑7 excavator
- Precision honed seamless steel cylinder tube, thickened hard‑chrome plated piston rod, wear‑resistant, anti‑corrosion & anti‑impact
- Heavy‑duty high‑pressure structure, stable power for lifting, crowding, digging and heavy‑load earthmoving
- Complete internal assembly: piston, piston rod, guide bushing, buffer ring, full oil seal repair kit pre‑installed
- Standard pin hole size, oil port position and mounting dimension, direct bolt‑on replacement without modification
- Built‑in buffer & dust‑proof design, adapts to muddy, dusty and rocky construction working conditions
- Strict high‑pressure leakage testing before shipment, stable performance and long service life
- Universal fit for Hyundai 7‑series medium excavator hydraulic system
| Item |
Specification |
| Product Name |
Boom Cylinder, Arm Cylinder, Bucket Cylinder Assembly |
| Matched Excavator |
Hyundai R210‑7 |
| Material |
High‑Strength Seamless Steel Tube, Hard Chrome‑Plated Piston Rod, NBR/FKM High‑Pressure Oil Seals |
| Included Parts |
Cylinder Tube, Piston Rod, Piston, Guide Bushing, Buffer Ring, Complete Seal Kit, End Cover |
| Function |
Provide hydraulic power for boom lifting, arm crowding, bucket digging & dumping |
| Application |
Hyundai Medium Excavator Hydraulic Working Device |
| Condition |
Brand New Aftermarket Replacement |
Related products
| Category |
Replaceable Part Numbers / Compatible Models |
| General OEM Series |
31N6‑50110(Boom), 31N6‑50120(Arm), 31N6‑50130(Bucket) |
| Compatible Excavator Models |
R210‑7, R220‑7, R215‑7 |
Fitment Application
Specially designed for Hyundai R210‑7 medium excavator, widely used in municipal engineering, road construction, earthmoving, quarrying and general construction machinery overhaul.





FAQ
Q1: Which excavator does this 3‑cylinder set fit?
A1: Specially for Hyundai R210‑7 excavator, also fits R220‑7, R215‑7.
Q2: Does each cylinder include oil seals?
A2: Yes, full oil seal repair kit pre‑installed for each cylinder.
Q3: Can they be installed directly?
A3: Yes, OEM standard size, plug‑and‑play replacement without modification.
Q4: What working scenarios are they suitable for?
A4: Municipal construction, road building, earthmoving and quarrying.
Q5: Are they durable for long‑time heavy‑load work?
A5: Yes, heavy‑duty high‑pressure structure with strict quality testing.