The Honda 12251-Z1F-901 Cylinder Head Gasket is a genuine OEM component designed for the GXV340 vertical shaft engine. As a direct Honda OEM part, it is manufactured to the exact specifications required for proper head sealing on this engine. This Cylinder Head Gasket is the correct replacement for GXV340 engines, and buyers should confirm their engine's serial number against the fitment table to ensure this is the right part for their specific unit before ordering.
Key Features
- OEM Head Sealing Integrity — engineered to Honda's exact compression and combustion chamber sealing requirements for the GXV340, maintaining consistent compression and preventing coolant or combustion gas from escaping between the head and cylinder.
- Direct OEM Replacement — supplied by Honda as a genuine factory part under part number 12251-Z1F-901, designed to install directly in place of the original gasket without modification.
- GXV340 Fitment — built specifically for GXV340 vertical shaft engines; verify your engine serial number against the fitment table, as Honda supersedes parts at serial breaks.
- Compression and Oil Control — a correctly seated cylinder head gasket is essential for maintaining rated compression; a failed or blown gasket causes power loss, oil consumption, and can allow combustion gases to contaminate the oil supply.
The cylinder head gasket forms the critical seal between the engine's cylinder head and the cylinder block. It must withstand the repeated pressure cycles of combustion while also sealing oil passages and, where applicable, coolant passages against leakage. When a cylinder head gasket fails — whether through age, overheating, or improper torque — the result is lost compression, reduced power output, oil burning, or in severe cases, engine damage from contaminated lubricant. Replacing it with a genuine Honda part ensures the correct material thickness and sealing profile for the GXV340 are maintained.
Part Details
| Part Number | 12251-Z1F-901 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Cylinder Head Gasket |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Vertical Shaft Engine | GXV340 | 1000206-9999999 |
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.
