The Honda 91055-VF9-B01 Radial Ball Bearing (6000) is a genuine OEM component designed for UMK422 and UMK431 trimmers. As a direct Honda OEM part, it is manufactured to the same specification as the original, ensuring an exact match for the application. Honda supersedes bearing part numbers at serial breaks, so confirm your trimmer's serial number against the fitment table before ordering. This bearing keeps rotating shafts running smoothly and quietly, restoring the performance lost when a worn bearing is left in service.
Key Features
- Genuine OEM Bearing Spec — sourced directly from Honda, this 6000-series radial ball bearing matches the original load rating and dimensional tolerance for the application, so internal clearances are correct from the first start
- Direct OEM Replacement — fits UMK422 and UMK431 trimmers; cross-reference part number 91055-VF9-B01 against your trimmer's parts diagram to confirm placement before installation
- Serial Number Verification Recommended — Honda updates bearing specifications at production serial breaks; check your unit's serial number against the fitment table to ensure this is the correct supersession for your trimmer
- Smooth Shaft Rotation — a functioning radial ball bearing minimizes friction on rotating components; a worn or seized bearing causes vibration, heat buildup, and accelerated wear on surrounding parts
A radial ball bearing supports a rotating shaft by carrying the load through a ring of precision steel balls seated between an inner and outer race. In a trimmer, bearings keep drive and cutting-head shafts aligned and spinning freely with minimal resistance. When a bearing wears, its internal clearances open up, leading to shaft wobble, increased vibration felt through the handles, and eventually seizure that can damage the shaft or housing it sits in. Replacing a worn bearing promptly with the correct part restores smooth, efficient power transfer from the engine to the cutting attachment.
Part Details
| Part Number | 91055-VF9-B01 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Radial Ball Bearing (6000) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Trimmer | UMK422, UMK431 | All |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
