Product Description
| Model Num | Application | Cylinder | Serial Num | Bore | Rod | Code |
| 621F | LOADER BUCKET (XR/LR) | 87577650 | - | 4.75 | 2.5 | P-UB-10 |
| 621F | LOADER LIFT (XT/TC) | 87577650 | - | 4.75 | 2.5 | P-UB-10 |
| 621F | LOADER LIFT (Z-BAR) | 87577650 | - | 4.75 | 2.5 | P-UB-10 |
| 621F | LOADER TILT (XR/LR) | 87366695 | - | 5 | 3 | P-UB-10 |
Frequently Asked Questions
Q: What 621F loader applications does JIC-87598751 fit?
A: The JIC-87598751 fits multiple 621F applications including bucket (XR/LR), lift (XT/TC), lift (Z-BAR), and tilt (XR/LR) functions. Cylinder 87577650 is used for bucket and lift applications with 4.75 bore and 2.5 rod. Cylinder 87366695 is used for tilt with 5 bore and 3 rod. Match your specific cylinder number to confirm fitment.
Q: What are the bore and rod specifications?
A: JIC-87598751 is available in two configurations: 4.75 inch bore with 2.5 inch rod (cylinder 87577650) and 5 inch bore with 3 inch rod (cylinder 87366695). Order based on which cylinders your 621F loader contains.
Q: Can this seal kit work on other loader brands?
A: The JIC-87598751 is manufactured for 621F loaders using specific cylinder models. If you operate a different brand with identical bore and rod dimensions, physical fitment may work, but warranty and performance are not guaranteed. Contact us with your cylinder specifications.
Q: What is the expected service life of this seal kit?
A: P-UB-10 seal kits typically last 2000 to 3000 operating hours under normal loader conditions. Lifespan varies based on operating temperature, contaminant levels, and pressure cycles. High-pressure applications or extended cold storage may reduce service life.