The Honda 90401-883-780 Muffler Washer is a genuine OEM component designed for F500 and FR500 tillers. As a direct Honda replacement, this part carries the same specifications as the original hardware that left the factory with your machine. Honda supersedes parts at serial breaks, so verify your tiller's serial number against the fitment table before ordering to confirm this is the correct washer for your unit.
Key Features
- Genuine OEM Fitment — sourced directly from Honda, this washer matches the original specification for the muffler mounting position on F500 and FR500 tillers.
- Exact Hardware Match — replacing worn or damaged muffler hardware with the correct OEM washer ensures the muffler seats and seals as intended, preventing exhaust leaks at the joint.
- Serial Number Verification Recommended — Honda updates hardware specifications across production runs; check your serial number against the fitment table to confirm part number 90401-883-780 applies to your machine.
A muffler washer sits between the muffler mounting flange and the engine or exhaust port surface, distributing clamping load evenly across the joint. This helps maintain a tight seal that keeps hot exhaust gases directed safely through the muffler and away from the engine. When this washer is worn, deformed, or missing, the joint can loosen over time, allowing exhaust gases to escape at the mounting point and leading to noise, heat exposure at unintended surfaces, and accelerated wear on surrounding hardware.
Part Details
| Part Number | 90401-883-780 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Muffler Washer |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Tiller | F500, FR500 | 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.
