The Honda 12000-Z1D-Q20 Cylinder Assembly is a genuine OEM Cylinder Assembly designed for Honda EB3800, EB4000, EB5000, and EB6500 generators. As a factory-sourced component, this assembly is manufactured to the same specifications as the original, ensuring a direct replacement with no guesswork. Honda supersedes parts at serial breaks, so confirm your generator's serial number against the fitment table before ordering to ensure part number 12000-Z1D-Q20 is the correct application for your unit.
Key Features
- Genuine OEM Construction — sourced directly from Honda, this Cylinder Assembly matches the original component's bore dimensions, port geometry, and finish tolerances that a generator engine demands for consistent compression and heat dissipation.
- Direct OEM Replacement — this assembly is designed to drop into EB3800, EB4000, EB5000, and EB6500 generators as a complete cylinder unit, preserving the engine's original architecture.
- Broad Generator Compatibility — covers the EB3800, EB4000, EB5000, and EB6500 generator lineup; verify your serial number against the fitment table, as Honda may have superseded earlier or later production runs to a different part number.
- Restored Compression and Power Output — a worn or damaged cylinder causes loss of compression, increased oil consumption, and declining electrical output from the generator; replacing it with this assembly restores the engine's ability to drive the alternator at rated load.
The cylinder is the structural and combustion core of a generator engine. It forms the bore in which the piston travels, contains the combustion chamber where fuel and air ignite, and transfers combustion heat to the surrounding cooling fins. When the cylinder is scored, cracked, or worn beyond its service limit, the engine loses the compression needed to fire reliably and produce consistent power — directly affecting the generator's ability to deliver stable output under load. Replacing a compromised cylinder assembly restores proper bore geometry and sealing, allowing the engine to return to its rated performance.
Part Details
| Part Number | 12000-Z1D-Q20 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Cylinder Assembly |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EB3800, EB4000, EB5000, EB6500 | 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.
