The Honda 13102-ZG9-000 is a genuine OEM Piston (0.25) designed for GXV140 vertical shaft engines and a range of Honda lawn mowers including the HR195, HR215, HRA215, HRB215, HRC215, HRC216, HRM195, and HRM215. As an oversize piston at the 0.25 mm grade, this part is sized for engines that have been bored to match — confirm that your cylinder bore has been machined to the corresponding oversize specification before ordering. Honda sources and engineers this component to the same tolerances as the original, ensuring the rebuilt engine performs to its original design intent.
Key Features
- Oversize Grade Accuracy — the 0.25 designation identifies a specific bore oversize; this piston is engineered to match a cylinder bored to that exact specification, so bore size verification before purchase is essential.
- Genuine OEM Construction — manufactured by Honda to the same dimensional and metallurgical standards as the original piston, supporting correct compression, ring land geometry, and pin bore alignment.
- Broad Fitment — suits GXV140 vertical shaft engines as fitted to Honda HR195, HR215, HRA215, HRB215, HRC215, HRC216, HRM195, and HRM215 lawn mowers; confirm your unit's serial number against the fitment table before ordering.
- Serial Number Verification Recommended — Honda updates internal components at production serial breaks, so matching your machine's serial number to the fitment table is the surest way to confirm this is the correct piston grade for your engine.
The piston is the reciprocating heart of the engine's combustion cycle. Seated inside the cylinder bore and connected to the crankshaft via the connecting rod, it compresses the air-fuel mixture on the upstroke, transmits combustion force to the crankshaft on the power stroke, and controls ring seal against the bore wall throughout. A worn or damaged piston leads to lost compression, increased oil consumption, and reduced power output — symptoms that typically mean the cylinder requires inspection and, in many cases, boring to an oversize dimension. When a cylinder is bored oversize, an oversize piston such as this 0.25 grade must be fitted to restore the correct running clearance and ring seal, returning the engine to full operating condition.
Part Details
| Part Number | 13102-ZG9-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Piston (0.25) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Lawn Mower | HR195, HR215, HRA215, HRC215, HRC216 | 7666484-9999999 |
| Lawn Mower | HRB215, HRM195, HRM215 | All |
| Vertical Shaft Engine | GXV140 | 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.
