The Honda 90300-ZDA-000 Air Cleaner Nut is a genuine OEM Air Cleaner Nut designed for GX120, GX160, and GX200 horizontal shaft engines, as well as WB20, WH15, WMP20, and WT20 water pumps. As a direct Honda OEM replacement, this nut is manufactured to the exact specification of the original hardware and is sourced straight from Honda's parts supply chain. Confirm your model and serial number against the fitment table before ordering, as Honda updates and supersedes parts at specific serial breaks — this part may be listed for select serial ranges within each model.
Key Features
- Genuine Honda OEM Hardware — sourced directly from Honda, this nut meets the exact thread specification required to secure the air cleaner assembly on the original equipment.
- Broad Fitment Across Engines and Pumps — listed for GX120, GX160, and GX200 horizontal shaft engines, as well as WB20, WH15, WMP20, and WT20 water pumps, including models across multiple serial ranges.
- Serial Number Verification Recommended — Honda supersedes hardware at serial breaks, so check your machine's serial number against the fitment table to confirm this is the correct nut for your unit.
- Air Cleaner Retention — a properly torqued air cleaner nut holds the filter assembly securely in place; a loose or stripped nut allows the cover to shift, compromising the filter seal and exposing the engine to unfiltered air.
The air cleaner nut is the fastener that secures the air cleaner cover or element to the air cleaner body on the engine. It keeps the filter assembly clamped firmly in position so that all intake air passes through the filter before reaching the carburetor. When this nut is missing, stripped, or improperly torqued, the air cleaner assembly can loosen, allowing unfiltered air — and the dust and debris it carries — to enter the engine and accelerate wear on internal components.
Part Details
| Part Number | 90300-ZDA-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Air Cleaner Nut |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX120, GX160, GX200 | All |
| Water Pump | WT20 | 1704060-9999999 |
| Water Pump | WMP20 | 1724826-9999999 |
| Water Pump | WB20, WH15 | 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.
