The Honda 16010-ZA0-921 Gasket Set is a genuine OEM component designed for GX340, GX360, and GX390 horizontal shaft engines, EB4000, EB5000, EB6500, EM4000, EM5000, EM6500, EM7000, and EU6500 generators, and H2013 and H2113 lawn tractors. As a factory-original part, this Gasket Set is manufactured to Honda's exacting tolerances, ensuring proper sealing across all mating surfaces it serves. Confirm your unit's serial number against the fitment table before ordering, as Honda revises part coverage at production breaks across this broad range of equipment.
Key Features
- Genuine OEM Sealing Integrity — each gasket in the set is produced to Honda's original material and thickness specifications, delivering the compression and fluid sealing performance the engine or equipment was designed around
- Direct-Fit Replacement — engineered to match the original gasket geometry exactly, so installation requires no trimming or reshaping
- Broad Equipment Coverage — fits GX340, GX360, and GX390 horizontal shaft engines, EB4000, EB5000, EB6500, EM4000, EM5000, EM6500, EM7000, and EU6500 generators, and H2013 and H2113 lawn tractors, including both conventional and inverter generator variants
- Verify by Serial Number — Honda supersedes gasket sets at production serial breaks; check your machine's serial number against the fitment table to confirm this is the correct set for your unit
- Maintains Combustion and Fluid Sealing — a degraded or improperly seated gasket leads to compression loss, oil seepage, or fuel leaks; replacing with a genuine set restores the tight seal the engine depends on for consistent output
A gasket set provides all the sealing layers needed when servicing or rebuilding the fuel and top-end systems of an engine or generator power unit. Individual gaskets compress between mating surfaces — such as the carburetor mounting face, fuel bowl, and cylinder head — to prevent combustion gases, fuel, and oil from escaping at joints that experience heat cycling and vibration. When a gasket fails, the result is typically rough running, external leaks, or a measurable drop in power; replacing the full set during any major service ensures every sealing surface is renewed at once rather than piecemeal.
Part Details
| Part Number | 16010-ZA0-921 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Gasket Set |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EB4000, EB6500 | 1000001-1251978 |
| Generator | EM4000, EM6500 | 4177869-9999999 |
| Generator | EB5000, EM5000 | All |
| Horizontal Shaft Engine | GX340, GX360, GX390 | All |
| Inverter Generator | EB7000, EM7000, EU6500 | All |
| Lawn Tractor | H2013, H2113 | 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.
