Product Description
| Model Num | Application | Cylinder | Serial Num | Bore | Rod | Code |
| 721E | LOADER BUCKET (XT) | 87324809 | - | 4.5 | 2.25 | I-UB-10 |
| 721F | LOADER BUCKET (XT) | 87324809 | - | 4.5 | 2.25 | I-UB-10 |
| 721F | LOADER LIFT (XT) | 87319194 | - | 4.5 | 2.25 | I-UB-10 |
| 721D | LOADER BUCKET (XT) | 87324809 | 01/03- | 4.5 | 2.25 | I-UB-10 |
| 721D | LOADER BUCKET (XT) | 87440056 | 01/03- | 4.5 | 2.25 | I-UB-10 |
Frequently Asked Questions
Q: What loader models use the JIC-87440117 seal kit?
A: The JIC-87440117 (SK-I-UB-10-2.25x4.5) seal kit fits loader models 721D, 721E, and 721F. It is designed for bucket and lift cylinder applications across these model lines.
Q: What are the bore and rod specifications for JIC-87440117?
A: This seal kit features a 4.5 inch bore and 2.25 inch rod. These dimensions are consistent across all compatible 721-series loader models for bucket and lift applications.
Q: Which cylinders are compatible with JIC-87440117?
A: Compatible cylinders include 87324809 for 721E and 721F bucket applications, and 87324809 (with 01/03- serial range) for 721D bucket, cylinder 87319194 for 721F lift, and cylinder 87440056 (01/03- serial) for 721D bucket on later models.
Q: What does the I-UB-10 code indicate?
A: The I-UB-10 designation identifies this as an interior seal kit for loader bucket applications. The I prefix indicates internal sealing for hydraulic cylinder rod and bore compatibility.
Q: Can JIC-87440117 be used on both 721D and 721F models?
A: Yes, the seal kit is compatible with both 721D and 721F models. However, verify the serial number range (01/03- designation) on your equipment to confirm compatibility, as some cylinder applications have specific serial restrictions.