The Honda 90201-Z4M-003 Nut Washer (6mm) is a genuine OEM component designed for GX160 and GX200 horizontal shaft engines. As a direct Honda OEM part, it is manufactured to the same specification as the original hardware installed at the factory. This nut washer is listed for both the GX160 and GX200 — confirm your engine's serial number against the fitment table to ensure this is the correct part for your unit.
Key Features
- Genuine OEM Hardware — sourced directly from Honda, this nut washer matches the original specification for the 6mm fastener position it occupies on GX160 and GX200 engines
- Exact Replacement — the 90201-Z4M-003 drops in as a like-for-like swap with no rework needed, maintaining proper clamping load for the fastened joint
- Serial Number Verification Recommended — Honda supersedes hardware at production breaks, so check your engine serial number against the compatibility table before ordering
A nut washer is a combined fastener that integrates a washer flange into the nut body, distributing clamping force across a broader contact area than a standard nut alone. This helps secure the fastened joint evenly and reduces the risk of the mating surface being damaged or deforming under load. When a nut washer is worn, stripped, or missing, the joint it holds may work loose during operation, leading to vibration, misalignment, or component damage on the engine.
Part Details
| Part Number | 90201-Z4M-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Nut Washer (6mm) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX160, GX200 | 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.
