The Honda 13104-ZN1-010 is a genuine OEM Piston (0.75) designed for GX670 horizontal shaft engines and GXV670 vertical shaft engines. As a direct Honda OEM component, this piston is manufactured to the same specifications as the original, ensuring proper fit within the cylinder bore of your engine. This part carries a 0.75 mm oversize designation, meaning it is intended for engines whose cylinder bores have been professionally bored out to accommodate an oversized piston — buyers should confirm their bore size before ordering. Genuine OEM construction means consistent ring-groove geometry and bore clearance for proper compression and oil control.
Key Features
- Oversize Designation — the 0.75 mm oversize specification means this piston is built for a bored cylinder; match this designation to your machined bore measurement before purchasing.
- Genuine OEM Construction — manufactured by Honda to original specifications, delivering consistent ring-groove dimensions that support proper piston ring seating, combustion sealing, and oil control.
- Dual-Orientation Fitment — compatible with both GX670 horizontal shaft engines and GXV670 vertical shaft engines; confirm your engine model and serial number against the fitment table, as Honda supersedes parts at serial breaks.
- Engine Performance Restoration — a correctly sized piston restores compression and reduces blow-by, bringing an overhauled engine back to full power output and fuel efficiency.
The piston is the reciprocating component at the heart of a four-stroke engine's combustion cycle. It travels up and down within the cylinder bore, compressing the air-fuel mixture on the upstroke and transmitting the force of combustion down through the connecting rod to the crankshaft on the power stroke. When a piston is worn, scored, or dimensionally out of specification, the engine loses compression, burns oil, and produces noticeably less power. An oversize piston like this one is fitted after the cylinder bore has been machined to a larger diameter, restoring the correct running clearance and allowing the engine to perform as intended after a rebuild.
Part Details
| Part Number | 13104-ZN1-010 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Piston (0.75) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX670 | 1037872-9999999 |
| Vertical Shaft Engine | GXV670 | 1002341-9999999 |
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.
