The Honda 90403-883-620 Thrust Washer (20MM) is a genuine OEM component designed for G200, GX140, GX160, and GX200 horizontal shaft engines. As a direct Honda OEM part, it meets the exact dimensional requirements of the original, ensuring correct fitment without adaptation. Honda supersedes parts at serial-number breaks, so confirm your engine's serial number against the fitment table before ordering to ensure part number 90403-883-620 is the right match for your unit. This 20MM thrust washer keeps axial loads managed properly, protecting rotating components and helping the engine run as Honda intended.
Key Features
- Genuine OEM Dimensional Accuracy — sourced directly from Honda, this thrust washer meets the exact 20MM specification required to control axial movement in these engines, with no guesswork on sizing
- Broad Horizontal Shaft Engine Coverage — listed for G200, GX140, GX160, and GX200 horizontal shaft engines, covering a wide range of Honda's general-purpose engine lineup
- Serial Number Verification Recommended — Honda issues part supersessions at specific serial breaks; always match your engine's serial number to the fitment table to confirm this is the correct thrust washer for your machine
- Axial Load Control — a worn or missing thrust washer allows excess end-play in rotating assemblies, leading to accelerated wear on adjacent components and eventual engine damage
A thrust washer manages axial (end-to-end) load on a rotating shaft, sitting between moving and stationary surfaces to absorb the forces that would otherwise cause those surfaces to grind directly against each other. In a horizontal shaft engine, this washer keeps shaft end-play within the tight tolerance Honda engineers specify, preventing metal-to-metal contact that leads to premature wear. When a thrust washer wears thin or fails, excess play develops in the rotating assembly, which can cause noise, vibration, and damage to surrounding engine components over time.
Part Details
| Part Number | 90403-883-620 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Thrust Washer (20MM) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | G200, GX140, 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.
