The Honda 31201-ZA1-003 Snap Ring is a genuine OEM component designed for a wide range of Honda engines, generators, tillers, riding mowers, and lawn tractors. As an authentic Honda part, it is manufactured to the exact tolerances required for proper retention and function across every application it covers. This snap ring fits an extensive lineup including GX240, GX270, and GX360 horizontal shaft engines, GXV270, GXV340, and GXV390 vertical shaft engines, G300 and G400 engines, EMS4000, EMS4500, ES4500, ES6500, EV4000, and EX5500 generators, the FR700 tiller, H1011, H3011, and H3013 riding mowers, H2013, H4013, H4514, HT3810, HT3813, and HT4213 lawn tractors. Because Honda supersedes parts at serial breaks, confirm your unit's serial number against the fitment table before ordering.
Key Features
- Genuine Honda OEM — sourced directly from Honda, this snap ring meets the exact dimensional and retention specifications the original design calls for, ensuring it seats and holds as intended.
- Broad Cross-Equipment Fitment — a single part number covering horizontal shaft engines, vertical shaft engines, generators, a tiller, riding mowers, and lawn tractors; confirms Honda's use of this ring across multiple product lines.
- Direct Drop-In Replacement — matched to Honda's original geometry, this ring installs without alteration and restores the retention function of the assembly it belongs to.
- Serial Number Verification Recommended — Honda updates part supersessions at specific serial breaks; check your machine's serial number against the compatibility table to confirm this is the correct ring for your unit.
A snap ring is a fastening component that seats into a machined groove on a shaft or inside a bore to retain a mating part — such as a gear, bearing, or pulley — in its correct axial position. It relies on precise dimensional fit within that groove: a ring that is too loose will not hold under load, while one that does not seat fully can allow unwanted movement that accelerates wear on surrounding components. When a snap ring fails or is lost during service, the retained component is free to shift, which can compromise the function of the assembly it secures and lead to further damage if the machine is operated before the ring is replaced.
Part Details
| Part Number | 31201-ZA1-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Snap Ring |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | ES4500, EV4000 | 1294568-9999999 |
| Generator | EMS4000, EMS4500, ES6500, EX5500 | All |
| Horizontal Shaft Engine | G300 | 1232729-9999999 |
| Horizontal Shaft Engine | G400 | 1294568-9999999 |
| Horizontal Shaft Engine | GX240, GX270, GX360 | All |
| Lawn Tractor | H4514 | 1206248-9999999 |
| Lawn Tractor | H2013, H4013, HT3810, HT3813, HT4213 | All |
| Riding Mower | H1011, H3011, H3013 | All |
| Tiller | FR700 | All |
| Vertical Shaft Engine | GXV270, GXV340, GXV390 | 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.
