The Honda 93404-06020-08 Bolt-Washer (6X20) is a genuine OEM fastener used across an exceptionally wide range of Honda equipment, including GX-series horizontal shaft engines, generators, tillers, water pumps, and multi-purpose tractors. As an OEM part, it is manufactured to the exact dimensions Honda specifies, ensuring correct clamp load and fit wherever this size is called out in the assembly. Because Honda supersedes and updates part applications at serial breaks, buyers should confirm part number 93404-06020-08 against their machine's parts diagram before ordering.
Key Features
- Genuine Honda OEM Hardware — sourced directly from Honda, this bolt-washer meets the exact dimensional and torque specifications called out in Honda's own assembly documentation for each listed application.
- Integrated Washer Design — the captive washer distributes clamping load evenly across the fastened surface, which is why Honda specifies this combined fastener rather than a plain bolt in these assemblies.
- Broad Cross-Equipment Fitment — listed for GX-series horizontal shaft engines, E, EG, and EG-series generators, FR-series tillers, HS-series snow blowers, H and RT multi-purpose tractors, and a wide range of W-series water pumps, including diaphragm pump models WDP20 and WDP30.
- Verify Against Your Serial Number — Honda updates fastener specifications at production serial breaks; check your unit's serial number against the fitment table to confirm this is the correct bolt-washer for your specific machine.
A bolt-washer is a fastener that combines a hex bolt and an integrated washer in a single captive unit. The washer face spreads the clamping force over a wider surface area than a bolt head alone, helping to prevent fastened components from loosening under vibration — a common condition in engines, pumps, and generators during operation. Using the correct OEM bolt-washer, matched by part number 93404-06020-08, ensures the proper thread engagement, shank length, and washer diameter that Honda designed into each assembly. Substituting an incorrect fastener risks under-clamping or damage to the mating surface, which can lead to component movement or fluid leaks over time.
Part Details
| Part Number | 93404-06020-08 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Bolt-Washer (6X20) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Diaphragm Water Pump | WDP20, WDP30 | 1000001-2519854 |
| Generator | EG1400, EG2200, EG2500 | 2836834-9999999 |
| Generator | E2500, EG3500, EG5000 | All |
| Horizontal Shaft Engine | GX110, GX120, GX140, GX160, GX240, GX270, GX340, GX390 | All |
| Multi-Purpose Tractor | H5013, RT5000 | 1000001-5002482 |
| Single-Stage Snow Blower | HS521, HS621 | All |
| Tiller | FR800 | 1000001-3331539 |
| Tiller | FR600 | 1000001-3385101 |
| Two-Stage Snow Blower | HS624 | 1000001-3385101 |
| Two-Stage Snow Blower | HS55 | 1754081-9999999 |
| Two-Stage Snow Blower | HS522, HS622 | All |
| Water Pump | WA20, WA30, WB20, WB30, WD20, WD30, WH15, WH20, WMP20, 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.
