The Honda 90321-750-881 Hexagon Nut (3/8-16) is a genuine OEM fastener designed for DB1013 and HT3810 lawn tractors. As a direct Honda OEM part, this nut is manufactured to the exact thread specification — 3/8-16 UNC — required for the application it serves. Honda supersedes fasteners at serial breaks, so confirm your tractor's serial number against the fitment table before ordering to ensure part number 90321-750-881 is the correct one for your unit.
Key Features
- Genuine OEM Fastener — sourced directly from Honda, this nut matches the exact thread pitch and dimensional spec called out in the DB1013 and HT3810 parts catalogue.
- 3/8-16 Thread Specification — the 3/8-16 UNC thread form ensures proper engagement and clamping load for the fastened joint, preventing loosening under the vibration and load cycles a lawn tractor generates.
- Lawn Tractor Fitment — listed for Honda DB1013 and HT3810 lawn tractors; verify your serial number against the fitment table to confirm applicability to your specific unit.
A hexagon nut is a threaded fastener that mates with a bolt or stud to clamp components together and hold them in position during operation. On a lawn tractor like the DB1013 and HT3810, fasteners carry the steady vibration and load shifts the machine produces during mowing, so using the correct thread size and grade matters. A nut of the wrong thread pitch will not engage correctly and can strip, while a worn or damaged nut may allow the joint to work loose over time.
Part Details
| Part Number | 90321-750-881 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Hexagon Nut (3/8-16) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Lawn Tractor | DB1013, HT3810 | 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.
