The Honda 12000-ZJ1-415 Cylinder Assembly is a genuine OEM Cylinder Assembly designed for GX610 and GX620 horizontal shaft engines. As a direct Honda OEM component, this part is manufactured to the same standards as the original, ensuring a correct fit without guesswork or modification. Confirm compatibility by checking your engine's serial number against the fitment table, as Honda supersedes parts at specific serial breaks — part number 12000-ZJ1-415 may not apply to every serial range within these two engine families.
Key Features
- Genuine Honda OEM Construction — machined to Honda's original bore dimensions and port geometry, preserving the combustion and cooling characteristics the GX610 and GX620 were engineered around
- Direct OEM Replacement — engineered to the same specifications as the original, this Cylinder Assembly drops into place without rework or adaptation
- Fits GX610 and GX620 Horizontal Shaft Engines — covering both engines in Honda's large-displacement twin-cylinder horizontal shaft lineup; verify your serial number against the fitment table before ordering
- Serial Number Verification Recommended — Honda updates part supersessions at serial breaks, so cross-check your engine's serial number to confirm part number 12000-ZJ1-415 is correct for your specific unit
- Restores Engine Integrity — a cracked, scored, or otherwise damaged cylinder compromises compression, oil control, and cooling; replacing it with this assembly returns the engine to its original operating condition
The cylinder is the structural and functional core of a four-stroke engine — it houses the piston and forms the walls of the combustion chamber where the air-fuel mixture ignites and drives the piston downward. On large-displacement engines like the GX610 and GX620, the cylinder must maintain precise bore tolerances to sustain proper compression and control oil consumption. When a cylinder becomes scored from debris ingestion, suffers a seizure, or develops cracks from overheating, power output drops, oil consumption rises, and continued operation risks further internal damage. Replacing the Cylinder Assembly restores the bore integrity the engine depends on for full power and efficient oil use.
Part Details
| Part Number | 12000-ZJ1-415 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Cylinder Assembly |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX610, GX620 | 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.
