Prouduct Description
| Part Name |
Boom Hydraulic Cylinder |
Apply for | for Hyundai Excavator |
| Model | R290LC-9 R300LC-9A | Warranty | 1 Year |
| Part Number | 31Q8-50120 31Q8-50110 31Y1-29830 | OEM | YES |
| Delivery | Direct from Factory | Seal | NOK and SKF |
Company Profile
With over 16 years of expertise in the excavator parts industry, GLPARTS specializes in manufacturing hydraulic cylinders (arm, boom, bucket) and supplying a full range of excavator components, including hydraulic pumps, control valves, gear pumps, motors, diesel engines, solenoid valves, oil seals, and hydraulic cylinder tools.
We serve clients in more than 100 countries, such as the United States, Australia, Indonesia, and Brazil, earning a strong reputation for reliability and consistent quality. From raw material selection to final testing, we enforce strict quality control to ensure outstanding durability and performance.
Backed by a skilled team and fast delivery capabilities, GLPARTS is committed to providing not just parts, but complete solutions — built to perform, made to last.
Why Choose US
More Cylinders We Can Provide
| 707-00-12300 | 707-00-50740 | 707-00-60370 | 707-00-70522 |
| 707-00-12950 | 707-00-50750 | 707-00-60520 | 707-00-70840 |
| 707-00-12960 | 707-00-50760 | 707-00-65031 | 707-00-75321 |
| 707-00-50090 | 707-00-55010 | 707-00-70132 | 707-00-75330 |
| 707-00-50131 | 707-00-55470 | 707-00-70140 | 707-00-75343 |
| 707-00-50201 | 707-00-60011 | 707-00-70210 | 707-00-75430 |
| 707-00-50320 | 707-00-60012 | 707-00-70220 | 707-00-80A20 |
| 707-00-50511 | 707-00-60021 | 707-00-70230 | 707-00-80C10 |
| 707-00-50610 | 707-00-60022 | 707-00-70411 | 707-00-80021 |
| 707-00-50721 | 707-00-60181 | 707-00-70421 | 707-00-80033 |
