The Honda 90403-ZG3-000 Washer (8mm) is a genuine OEM component designed for GD320 and GD410 horizontal shaft diesel engines. As an authentic Honda part, it is manufactured to the exact dimensions and tolerances Honda specifies for these engines, ensuring a proper fit without the guesswork that can come with non-OEM alternatives. This washer is listed for both the GD320 and GD410 — verify your engine's serial number against the fitment table to confirm this is the correct part for your unit. Sourcing the right hardware from Honda's own parts catalogue keeps your diesel engine running as it was built to.
Key Features
- Genuine OEM Dimensional Accuracy — manufactured to Honda's exact 8mm specification, so the washer seats and clamps correctly without shimming or modification
- Direct OEM Replacement — an exact match for the original part, dropping straight into place on GD320 and GD410 horizontal shaft diesel engines
- Serial Number Verification Recommended — Honda supersedes hardware at production breaks, so cross-check your engine's serial number against the fitment table before ordering
A washer of this size serves as a load-distributing fastener component in Honda's GD-series diesel engines, spreading clamping force evenly across the mating surface beneath a bolt or nut head. Without the correct washer in place, fastener load concentrates on a smaller area, increasing the risk of surface damage or fastener loosening over time. Using the correctly sized OEM washer maintains the integrity of the fastened joint through the vibration and thermal cycles these diesel engines regularly encounter.
Part Details
| Part Number | 90403-ZG3-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Washer (8mm) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Diesel Engine | GD320 | 1006485-9999999 |
| Horizontal Shaft Diesel Engine | GD410 | 1011688-9999999 |
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.
