The Honda 90115-659-003 Self-Lock Nut (8MM) is a genuine OEM fastener used across a wide range of Honda generators, tillers, lawn mowers, snow blowers, water pumps, riding mowers, and tractors — including the E1500, E2500, E3500, EB3000, EB4000, ED1000, EG1000, EG1400, EG1500, EG2200, EM1600, EM1800, EM2200, EM3000, EM4000, EMS4000, EMS4500, ES3500, EW170, F400, F500, FR500, FR600, FR700, FR800, G150, G200, G300, G400, GC3000, GC3800, GV150, GV200, GV400, H1011, H5013, H5518, HR195, HR21, HR215, HRA21, HRA215, HRB215, HRB216, HRB217, HRC215, HRC216, HRM215, HRX217, HS1132, HS1332, HS1336, HS35, HS50, HS521, HS55, HS621, HS624, HS70, HS724, HS80, HS828, HS928, HSM1336, HT3810, HT3813, HT4213, MUL30, RT5000, WA20, WA30, WB20, WB30, WMP20, WT20, and WT30. Sourcing this fastener directly from Honda ensures the correct thread pitch, locking mechanism, and dimensional profile for your specific machine. Always confirm your unit's serial number against the fitment table before ordering, as Honda updates part applications at serial number breaks.
Key Features
- Genuine Honda OEM Fastener — manufactured to Honda's exact 8MM thread specification, ensuring the self-locking feature engages correctly and holds torque under the vibration and load cycles these machines generate.
- Broad Cross-Equipment Application — listed for generators, tillers, lawn mowers, snow blowers, water pumps, riding mowers, and tractors, including the EG, EM, EB, FR, HRX, HS, WB, and WT lines, among many others.
- Verify Your Serial Number — Honda supersedes fasteners at production breaks; check your machine's serial number against the fitment table to confirm part number 90115-659-003 is correct for your unit before ordering.
- Self-Locking Design — the locking element resists loosening from engine and equipment vibration, maintaining clamp load without requiring additional locking hardware.
A self-lock nut is a standard fastener fitted with an integrated locking feature — typically a nylon insert or a deformed thread section — that creates resistance when the nut is threaded onto a bolt or stud. This resistance prevents the nut from backing off under the vibration and dynamic loads that engines, pumps, mowers, and other outdoor power equipment generate during operation. When a self-lock nut loses its locking ability through wear, reuse, or damage, the clamped joint can loosen over time, potentially leading to misalignment or component movement. Replacing a worn or damaged nut with the correct genuine OEM fastener restores the joint's holding strength and keeps the assembly secure through normal service life.
Part Details
| Part Number | 90115-659-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Self-Lock Nut (8MM) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | E1500, E2500, E3500, EB3000, EB4000, ED1000, EG1000, EG1400, EG1500, EG2200, EM1600, EM1800, EM2200, EM3000, EM4000, EMS4000, EMS4500, ES3500 | All |
| Horizontal Shaft Engine | G200 | 1533901-9999999 |
| Horizontal Shaft Engine | G150, G300, G400 | All |
| Lawn Mower | HR21, HR195, HR215, HRA21, HRA215, HRB215, HRB216, HRB217, HRC215, HRC216, HRM215, HRX217 | All |
| Lawn Tractor | HT3810, HT3813, HT4213 | All |
| Multi-Purpose Tractor | H5013, H5518, RT5000 | All |
| Riding Mower | GC3000, GC3800, H1011, MUL30 | All |
| Single-Stage Snow Blower | HS35, HS521, HS621 | All |
| Tiller | FR600, FR800 | 2002616-9999999 |
| Tiller | F400, F500, FR500, FR700 | All |
| Two-Stage Snow Blower | HS50, HS55, HS70, HS80, HS624, HS724, HS828, HS928, HS1132, HS1332, HS1336, HSM1336 | All |
| Vertical Shaft Engine | GV150 | 2038748-9999999 |
| Vertical Shaft Engine | GV200, GV400 | All |
| Water Pump | WA20, WA30, WB20, WB30, WMP20, WT20, WT30 | All |
| Welder Generator | EW170 | 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.
