The Honda 12210-Z5K-415 Cylinder Head is a genuine OEM component built for GX240 and GX270 horizontal shaft engines, EB3800, EB4000, EB5000, EB6500, EG4000, EM3800, EM4000, EM5000, and EM6500 generators, HS928 and HS1332 two-stage snow blowers, HSS928 and HSS1332 two-stage snow blowers, the WT30 water pump, and the FRC800 tiller. As a direct Honda OEM part, it is manufactured to the exact specification of the original component it replaces. Confirm your machine's serial number against the fitment table before ordering, as Honda updates parts at serial number breaks and this cylinder head applies to specific production ranges within these models.
Key Features
- Genuine Honda OEM — sourced directly from Honda, this cylinder head meets the same dimensional and material specifications as the part that left the factory, ensuring correct valve seat geometry, port dimensions, and head gasket mating surfaces.
- Broad Cross-Model Fitment — covers GX240 and GX270 horizontal shaft engines as well as a range of Honda generators, two-stage snow blowers, a water pump, and a tiller that share this engine platform, including EB, EM, EG, HS, HSS, WT, and FRC models.
- Serial Number Verification Recommended — Honda supersedes cylinder head part numbers at production breaks; check your unit's serial number against the fitment table to confirm this is the correct casting for your specific machine.
- Combustion Integrity — a sound cylinder head maintains proper compression, correct combustion chamber volume, and effective heat transfer; a cracked, warped, or corroded head leads to compression loss, overheating, and hard starting across all equipment types this part serves.
The cylinder head is the upper section of the engine's combustion chamber, bolting directly to the top of the cylinder block. It houses the valve seats, valve guides, and combustion chamber recess that together control the intake of air and fuel, the compression stroke, and the expulsion of exhaust gases. When the cylinder head warps from overheating, develops cracks, or suffers damage to the valve seats, the engine loses compression, runs poorly, consumes excessive oil, or refuses to start — making a correctly fitted replacement essential to restoring full engine performance across all the equipment this part powers.
Part Details
| Part Number | 12210-Z5K-415 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Cylinder Head |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EB3800, EB4000, EB5000, EB6500, EG4000, EM3800, EM4000, EM5000, EM6500 | All |
| Horizontal Shaft Engine | GX240, GX270 | All |
| Tiller | FRC800 | All |
| Two-Stage Snow Blower | HS928, HS1332, HSS928, HSS1332 | All |
| Water Pump | WT30 | 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.
