The Honda 13104-ZE0-010 is a genuine OEM Piston (0.75) designed for GX110 horizontal shaft engines, EG1400, EG2200, and EG2500 generators, F401 and F501 tillers, WA20, WA30, WB20, WB30, WD20, and WD30 water pumps. As a genuine Honda part, it is manufactured to the same specifications as the original component, ensuring a correct fit without modification. The 0.75 oversize designation means this piston is intended for engines whose cylinders have been bored 0.75 mm over standard, so buyers should confirm their bore size before ordering. Because Honda supersedes parts at production breaks, verify your unit's serial number against the fitment table to confirm this is the correct piston for your machine.
Key Features
- Oversize Designation — the 0.75 marking indicates this piston is sized for a cylinder bored 0.75 mm over standard; match this to your actual bore before purchasing
- Genuine OEM Construction — manufactured by Honda to the same dimensional tolerances as the original piston, supporting proper ring seal, compression retention, and smooth bore clearance
- Broad Fitment — listed for GX110 horizontal shaft engines, EG1400, EG2200, and EG2500 generators, F401 and F501 tillers, and WA20, WA30, WB20, WB30, WD20, and WD30 water pumps, including the EG series, F-series, and W-series catalogues
- Serial Number Verification Recommended — Honda updates internal components at defined production points; check the serial number on your machine against the fitment table to confirm applicability
- Compression Restoration — a worn or scored piston allows combustion gases to bypass the rings, causing loss of power, excessive oil consumption, and hard starting; replacing with the correct oversize piston restores proper compression
A piston is the reciprocating component that travels up and down inside the engine cylinder, compressing the air-fuel mixture on the upstroke and transferring the force of combustion to the connecting rod and crankshaft on the power stroke. It works in close partnership with the piston rings, which seal combustion pressure above and control oil below. When a piston is worn, scuffed, or cracked, compression drops, oil consumption rises, and the engine loses the power needed to drive the equipment it is fitted to. An oversize piston such as this 0.75 variant is used during engine rebuilds after the cylinder has been bored to remove wear and restore a true, round bore surface.
Part Details
| Part Number | 13104-ZE0-010 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Piston (0.75) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EG1400, EG2200, EG2500 | 1817923-9999999 |
| Horizontal Shaft Engine | GX110 | 1817923-9999999 |
| Tiller | F401, F501 | 1817923-9999999 |
| Water Pump | WA20, WA30, WB20, WB30, WD20, WD30 | 1817923-9999999 |
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.
