The Honda 91403-Z4M-003 Spring Washer is a genuine OEM replacement designed for GX160 and GX200 horizontal shaft engines. Sourced directly from Honda, this part carries the same specification as the original component installed at the factory. Confirm your engine's serial number against the fitment table before ordering, as Honda updates part numbers at serial breaks — part number 91403-Z4M-003 covers specific production ranges within these two series.
Key Features
- Genuine Honda OEM — supplied to Honda's own specification, ensuring the correct tension characteristics expected of a spring washer in this application
- Direct Replacement — designed as a drop-in fit for GX160 and GX200 horizontal shaft engines with no modification required to seat correctly
- Serial Number Verification Recommended — Honda supersedes parts at production breaks, so always cross-check your engine serial number against the compatibility table to confirm part number 91403-Z4M-003 is the right listing for your unit
A spring washer functions as a locking and load-distributing fastener element, using its curved profile to maintain clamping tension against vibration and thermal cycling. In a small engine environment like the GX160 and GX200, where vibration is constant during operation, this type of washer helps prevent fastener loosening over time. A missing or flattened spring washer can lead to fastener movement and, eventually, component loosening at the assembly it secures.
Part Details
| Part Number | 91403-Z4M-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Spring Washer |
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.
