The Honda 90432-889-003 Lock Washer (7mm) is a genuine OEM replacement built for a wide range of Honda generators, tillers, horizontal and vertical shaft engines, lawn mowers, snow blowers, and water pumps. As a direct Honda OEM part, it carries the same specification as the original hardware it replaces. This washer is listed across an extensive range of models — including the E1500, E2500, EB3000, EG1000, EG1400, EG1500, EG2200, EM1600, EM1800, EM2200, EM3000, F400, F500, FR500, FR700, G150, G200, G300, GV150, GV200, HR21, HRA21, HS35, HS50, HS70, WA20, WA30, WB20, WB30, WT20, and WT30 — so confirm part number 90432-889-003 against your machine's serial number and parts diagram before ordering.
Key Features
- Genuine Honda OEM Hardware — sourced directly from Honda, matching the original specification for the 7mm lock washer used across this equipment range.
- Broad Cross-Model Fitment — listed for generators, tillers, horizontal and vertical shaft engines, lawn mowers, snow blowers, and water pumps across more than 30 Honda models.
- Serial Number Verification Recommended — Honda supersedes hardware at production breaks, so always check your machine's serial number against the fitment table to confirm this is the correct washer for your unit.
A lock washer is a thin, deformed or split ring placed under a fastener to resist loosening caused by vibration or repeated load cycling. By biting into the mating surface and the fastener, it maintains clamping force at the joint. On equipment that runs under sustained vibration — engines, pumps, generators, and ground-engaging machines — a lock washer that has flattened, cracked, or gone missing allows the fastener to back out gradually, which can lead to loose assemblies and accelerated wear at the joint. Replacing a damaged or lost washer with the correct Honda OEM piece restores the holding force the original design requires.
Part Details
| Part Number | 90432-889-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Lock Washer (7mm) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EG1000 | 1229778-9999999 |
| Generator | E1500, EG1500 | 1346239-9999999 |
| Generator | E2500, EB3000, EG1400, EG2200, EM1600, EM1800, EM2200, EM3000 | All |
| Horizontal Shaft Engine | G150 | 1229778-9999999 |
| Horizontal Shaft Engine | G200 | 1346239-9999999 |
| Horizontal Shaft Engine | G300 | All |
| Lawn Mower | HR21, HRA21 | All |
| Single-Stage Snow Blower | HS35 | All |
| Tiller | F400 | 1229778-9999999 |
| Tiller | F500 | 1346239-9999999 |
| Tiller | FR500, FR700 | All |
| Two-Stage Snow Blower | HS50, HS70 | All |
| Vertical Shaft Engine | GV200 | 1000013-9999999 |
| Vertical Shaft Engine | GV150 | All |
| Water Pump | WA20, WA30 | 1229778-9999999 |
| Water Pump | WB20, WB30, WT20, WT30 | 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.
