The Honda 90304-GE8-003 U Nut (10MM) is a genuine OEM fastener designed for Honda lawn tractors and lawn mowers, including the CD4538, CD4542, CD4546, H4013, HRM21, HRS21, HT3810, HT3813, and MM46. As a direct Honda OEM component, this nut is the exact piece used in original production, ensuring a correct, rattle-free fit with no guesswork. Honda supersedes fastener part numbers at production breaks, so confirm part number 90304-GE8-003 against your machine's serial number in the fitment table before ordering.
Key Features
- Genuine OEM Fastener — sourced directly from Honda, matching the thread pitch, dimensions, and retention characteristics of the original hardware
- U-Nut Design — the U-profile clips into panel or frame edges, providing secure thread engagement without requiring a backing wrench or secondary access
- Broad Lawn Equipment Fitment — listed for Honda lawn tractors and lawn mowers including the CD4538, CD4542, CD4546, H4013, HT3810, HT3813, MM46, HRM21, and HRS21
- Serial Number Verification Recommended — Honda updates fastener specifications across production runs; check your unit's serial number against the fitment table to confirm this is the correct specification for your machine
A U nut is a stamped, spring-steel clip nut that slides onto a panel flange or bracket edge, placing its threaded barrel in line with a corresponding bolt hole. Once clipped in place it holds its position hands-free, allowing a bolt to be driven from one side only — a practical advantage wherever rear access is restricted on a tractor deck or mower housing. When a U nut is worn, stripped, or missing, the fastener joint it anchors loses clamping force and can work loose over time, leading to rattles, misalignment, or detached panels during operation.
Part Details
| Part Number | 90304-GE8-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | U Nut (10MM) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Lawn Mower | HRM21, HRS21 | All |
| Lawn Tractor | CD4538, CD4542, CD4546, H4013, HT3810, HT3813 | All |
| Multi-Purpose Tractor | MM46 | 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.
