The Honda 31212-ZA1-003 Spring is a genuine OEM replacement designed for a wide range of Honda generators, tillers, horizontal shaft engines, and lawn tractors. This spring is sourced directly from Honda, ensuring it meets the exact specifications required for the equipment it serves. Compatible machines include EMS4000, EMS4500, ES4500, ES6500, EV4000, and EX5500 generators, the FR700 tiller, G300, G400, and GX360 horizontal shaft engines, and H4514, HT3810, HT3813, and HT4213 lawn tractors. Because Honda updates and supersedes parts at production breaks, confirm your machine's serial number against the fitment table before ordering.
Key Features
- Genuine Honda OEM Part — sourced directly from Honda, so this spring matches the original specification for correct tension and function across every compatible machine.
- Broad Fitment Coverage — fits Honda generators including the EMS4000, EMS4500, ES4500, ES6500, EV4000, and EX5500; the FR700 tiller; G300, G400, and GX360 engines; and H4514, HT3810, HT3813, and HT4213 lawn tractors.
- Serial Number Verification Recommended — Honda applies part supersessions at specific production points, so check your unit's serial number against the compatibility table to confirm this is the correct spring for your machine.
- Direct OEM Replacement — installs in place of the original with no alteration, restoring the mechanism it serves to proper operating condition.
A spring in a mechanical assembly provides the return force, tension, or preload that keeps a component seated, a linkage engaged, or a control in its correct default position. When a spring loses its tension, breaks, or deforms, the mechanism it controls can behave erratically, fail to return to position, or stop functioning altogether. Replacing a worn or failed spring with a genuine OEM part restores the calibrated force the original design requires, keeping the governed system, control linkage, or actuated component working as intended across Honda generators, tillers, engines, and lawn tractors.
Part Details
| Part Number | 31212-ZA1-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Spring |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EMS4000, EMS4500 | 1077948-9999999 |
| Generator | ES4500, EV4000 | 1294568-9999999 |
| Generator | ES6500, EX5500 | All |
| Horizontal Shaft Engine | G300 | 1232729-9999999 |
| Horizontal Shaft Engine | G400 | 1294568-9999999 |
| Horizontal Shaft Engine | GX360 | All |
| Lawn Tractor | HT3810 | 1388993-9999999 |
| Lawn Tractor | H4514, HT3813, HT4213 | All |
| Tiller | FR700 | 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.
