The Honda 13102-ZE2-010 is a genuine OEM Piston (0.25) designed for a wide range of Honda engines and equipment, including GX240 horizontal shaft engines, EB3500, EG3500, EM3500, and EX3300 generators, the EW140 welder generator, HS80, HS828, and HS928 two-stage snow blowers, WT20 and WT30 water pumps. This is an oversize piston — the (0.25) designation indicates a 0.25 mm oversize bore dimension, meaning it is intended for engines that have been bored out during a rebuild rather than those still at standard bore. As a genuine Honda OEM component, it is manufactured to the same specifications as the original part, ensuring correct fit within the cylinder bore and proper relationship with the connecting rod, rings, and cylinder wall.
Key Features
- Genuine OEM Oversize Piston — manufactured by Honda to the exact dimensions required for a 0.25 mm overbore rebuild, ensuring the correct clearances for compression retention and oil control
- Verify Before Ordering — the (0.25) oversize designation means this piston is not a standard-bore replacement; confirm your cylinder has been bored to the matching oversize before purchasing
- Broad Equipment Compatibility — fits GX240 horizontal shaft engines, EB3500, EG3500, EM3500, and EX3300 generators, the EW140 welder generator, HS80, HS828, and HS928 two-stage snow blowers, and WT20 and WT30 water pumps, including the equipment each powers
- Check Your Serial Number — Honda supersedes internal engine components at production breaks; always cross-reference your unit's serial number against the fitment table to confirm part number 13102-ZE2-010 is correct for your specific machine
- Compression and Engine Performance — a correctly sized oversize piston restores proper cylinder sealing after bore wear, recovering lost compression and returning the engine to full operating power
The piston is the reciprocating component inside the engine cylinder that converts the force of combustion into rotational motion through the connecting rod and crankshaft. It must fit the cylinder bore within very tight tolerances: too loose, and combustion gases blow past into the crankcase, robbing power and accelerating oil consumption; too tight, and the piston will seize. An oversize piston like this one is used specifically after a cylinder rebore, where the bore has been machined slightly larger to remove wear, scoring, or out-of-round damage — the 0.25 mm oversize dimension matches the most common first-stage overbore. Fitting the wrong size piston, whether standard in a bored cylinder or oversize in a standard bore, will result in immediate engine damage.
Part Details
| Part Number | 13102-ZE2-010 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Piston (0.25) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EB3500, EG3500, EM3500, EX3300 | All |
| Horizontal Shaft Engine | GX240 | All |
| Two-Stage Snow Blower | HS80, HS828, HS928 | All |
| Water Pump | WT20, WT30 | All |
| Welder Generator | EW140 | 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.
