The Honda 90443-ZA8-000 Washer (5.2X9) is a genuine OEM component designed for EM650 and EX650 generators. As a direct Honda OEM part, it carries the exact dimensions and material specification Honda calls out for this application, ensuring the washer seats and functions exactly as intended. This part is listed for both the EM650 and EX650 generators — confirm your model and serial number against the fitment table before ordering, as Honda supersedes parts at serial breaks. Sourced directly through Honda's OEM supply chain, this washer is the correct replacement when restoring your generator to its original specification.
Key Features
- Genuine Honda OEM — manufactured to Honda's exact dimensional specification for the 5.2 x 9 mm application, so the washer performs its intended function without modification
- Exact Fit for EM650 and EX650 Generators — listed for both Honda generator models; verify your serial number against the fitment table to confirm the correct part for your unit
- Serial Number Verification Recommended — Honda updates parts at production serial breaks, so always cross-reference your generator's serial number with the compatibility table before ordering
A washer of this size serves as a bearing or load-distributing surface between a fastener and the component it secures, spreading clamping force evenly to prevent damage to the mating surface and maintain consistent fastener torque over time. In a generator like the EM650 or EX650, correctly seated washers are essential to keeping assemblies tight through the vibration cycles that come with normal operation. When a washer is missing, deformed, or worn, the fastener it supports can work loose, leading to misalignment or accelerated wear in the surrounding components.
Part Details
| Part Number | 90443-ZA8-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Washer (5.2X9) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EM650, EX650 | 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.
