The Honda 12110-ZEA-000 Cylinder Head #1 is a genuine OEM component designed for GX630, GX660, GX690, GX700, and GX800 horizontal shaft engines, GXV630, GXV660, and GXV690 vertical shaft engines, and the EB10000 generator. As a direct OEM replacement sourced from Honda, this cylinder head is manufactured to the same exacting standards as the original part, ensuring a correct match to the combustion chamber geometry, port dimensions, and head bolt pattern of the engines it covers. Because Honda supersedes cylinder head part numbers at serial breaks, confirm your engine or generator serial number against the fitment table before ordering to be certain part number 12110-ZEA-000 is the right head for your specific unit.
Key Features
- Genuine Honda OEM Construction — combustion chamber geometry, valve seat positioning, and port dimensions are identical to the original, ensuring correct compression and airflow without rework or modification.
- Broad Series Coverage — fits GX630, GX660, GX690, GX700, and GX800 horizontal shaft engines; GXV630, GXV660, and GXV690 vertical shaft engines; and the EB10000 generator, all under a single part number.
- Serial Number Verification Recommended — Honda's large-displacement V-twin line spans multiple production revisions, and cylinder head specifications can differ between them. Check your serial number against the fitment table before ordering.
- Restores Full Compression and Power Output — a cracked, warped, or eroded cylinder head causes compression loss, rough running, overheating, and hard starting. A correctly fitted replacement head brings combustion back to specification and restores full power output to the engine or equipment it drives.
The cylinder head is the top section of the engine's combustion chamber, housing the intake and exhaust valves, valve seats, and the surface against which the head gasket seals. On Honda's large-displacement V-twin engines — including the GX and GXV 630 through 800 series — the #1 designation identifies the specific cylinder bank this head covers, and it is not interchangeable with the #2 head. When a cylinder head warps from overheating, cracks from mechanical stress, or suffers valve seat damage, the affected cylinder loses compression, leading to reduced power, increased fuel consumption, and eventually a no-start condition. Replacing the damaged head with a genuine Honda part restores the sealed combustion environment the engine needs to run cleanly and at full output.
Part Details
| Part Number | 12110-ZEA-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Cylinder Head #1 |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EB10000 | All |
| Horizontal Shaft Engine | GX630, GX690 | 1039241-9999999 |
| Horizontal Shaft Engine | GX660 | 2030752-9999999 |
| Horizontal Shaft Engine | GX700, GX800 | All |
| Vertical Shaft Engine | GXV630, GXV660, GXV690 | 2002536-9999999 |
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.
