The Honda 90603-Z4M-003 Circlip (10.2MM) is a genuine OEM component designed for GX160 and GX200 horizontal shaft engines. As a direct Honda OEM part, it is manufactured to the same specifications as the original, ensuring an exact fit with no guesswork. This circlip is listed for both the GX160 and GX200 — confirm your engine's serial number against the fitment table to make sure you are ordering the correct version for your unit. Sourced directly from Honda, part number 90603-Z4M-003 is the right choice when precision retention matters.
Key Features
- Genuine OEM Retention — manufactured by Honda to the original specification, delivering the exact 10.2MM diameter needed to seat and hold correctly within the engine assembly
- Direct OEM Replacement — snaps into the original groove without modification, restoring the retention function the engine depends on
- GX160 and GX200 Fitment — listed for both GX160 and GX200 horizontal shaft engines; verify your serial number against the fitment table before ordering
- Critical Retention Function — a worn, sprung, or missing circlip allows internal components to shift axially, which can lead to accelerated wear or engine damage
A circlip is a precision-formed retaining ring that snaps into a machined groove on a shaft or inside a bore to lock a component in position and prevent axial movement. Inside a Honda horizontal shaft engine, circlips hold rotating or reciprocating components in their correct working position, keeping clearances consistent and preventing parts from walking out of alignment during operation. When a circlip fails, deforms, or goes missing, the component it retains can shift, causing uneven wear, noise, or more serious internal damage — making timely replacement with the correct OEM part essential.
Part Details
| Part Number | 90603-Z4M-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Circlip (10.2MM) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | 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.
