The Honda 90136-428-870 Tank Setting Washer is a genuine OEM replacement designed for GCV520, GCV530, GXV520, and GXV530 vertical shaft engines, as well as HRA21 lawn mowers, HS521 single-stage snow blowers, and HS621 single-stage snow blowers. As a direct Honda OEM component, this washer is manufactured to the exact dimensions required for a correct, rattle-free fit in the original assembly. Honda supersedes parts across serial number ranges, so confirm your unit's serial number against the fitment table before ordering to ensure you receive the right version for your machine.
Key Features
- Genuine Honda OEM — sourced directly from Honda, this washer meets the same dimensional tolerances as the original hardware it replaces, ensuring proper seating and retention in the tank mounting assembly.
- Broad Fitment — listed for GCV520, GCV530, GXV520, and GXV530 vertical shaft engines, including applications in HRA21 lawn mowers and HS521 and HS621 single-stage snow blowers.
- Serial Number Matters — Honda revises hardware specifications at production breaks, so cross-reference your machine's serial number with the fitment table to confirm this is the correct washer for your unit.
- Stable Tank Mounting — a correctly fitted washer maintains even clamping load at the tank mounting point, preventing looseness that can lead to vibration, noise, or misalignment during operation.
The Tank Setting Washer is a hardware component used to seat and secure the fuel tank at its mounting point on the engine or equipment frame. It distributes the clamping load of the fastener evenly across the tank mounting surface, preventing the tank from shifting or vibrating during operation. When this washer is missing, worn, or the wrong size, the fuel tank can sit unevenly or work loose over time, introducing unwanted movement and the potential for fuel line stress at the connection points.
Part Details
| Part Number | 90136-428-870 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Tank Setting Washer |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Lawn Mower | HRA21 | All |
| Single-Stage Snow Blower | HS521, HS621 | All |
| Vertical Shaft Engine | GCV520, GCV530, GXV520, GXV530 | 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.
