The Honda 12251-ZG3-000 Cylinder Head Gasket (1.1) is a genuine OEM replacement designed for the GD410 horizontal shaft diesel engine. As a direct Honda OEM component, this gasket is manufactured to the exact specifications required for a proper combustion seal on the GD410. Confirm your engine's serial number against the fitment table before ordering — Honda supersedes gasket part numbers at production breaks, and the (1.1) variant designation identifies this specific thickness for your application.
Key Features
- Combustion Integrity — a cylinder head gasket that meets OEM specifications maintains the compression seal between the cylinder head and block, which is critical on a diesel engine where compression ratios are substantially higher than on a gasoline engine
- OEM Variant Accuracy — the (1.1) designation identifies a specific gasket thickness; using the correct variant ensures proper head torque and combustion chamber volume on the GD410
- Genuine Honda Fitment — sourced directly from Honda, part number 12251-ZG3-000 is engineered specifically for the GD410 horizontal shaft diesel engine with no guesswork on fit
- Serial Number Verification Advised — Honda revises gasket part numbers across production runs; cross-reference your engine serial number with the fitment table to confirm this is the correct replacement for your unit
The cylinder head gasket forms the critical seal between the cylinder head and the engine block, containing combustion pressure and preventing coolant or oil from entering the combustion chamber. On a diesel engine like the GD410, this seal must withstand significantly higher compression pressures than a comparable gasoline engine, making gasket integrity especially important. A failed or deteriorated head gasket typically causes loss of compression, overheating, oil or coolant contamination, and white or blue exhaust smoke — all signs that immediate replacement is needed to return the engine to proper working condition.
Part Details
| Part Number | 12251-ZG3-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Cylinder Head Gasket (1.1) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Diesel Engine | GD410 | 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.
