The Honda 13101-ZF6-000 Piston (STD) is a genuine OEM standard-bore piston designed for the GXV390 vertical shaft engine and the Honda H-series and HRC-series equipment it powers, including the H2013, H2113, H3011, H3013, H4013, H5013, HRC7013, and RT5000. As a direct Honda OEM component, this piston is manufactured to the same specifications as the part that left the factory, ensuring a proper fit within the existing cylinder bore without any re-boring or sizing work. Confirm your machine's serial number against the fitment table before ordering, as Honda supersedes piston part numbers at specific serial breaks.
Key Features
- Standard Bore Fit — the STD designation means this piston is sized for a standard, unworn cylinder bore; it is not an oversize and is not intended for a re-bored block.
- Genuine Honda OEM Component — sourced directly from Honda, this piston matches the original crown geometry, ring groove dimensions, and pin bore to maintain correct compression and combustion characteristics in the GXV390 engine.
- Broad Equipment Compatibility — fits the GXV390 vertical shaft engine as used in H2013, H2113, H3011, H3013, H4013, and H5013 lawn and multi-purpose tractors, the HRC7013 commercial mower, and the RT5000 multi-purpose tractor.
- Serial Number Verification Recommended — Honda updates piston part numbers at production serial breaks, so check the serial number on your machine against the fitment table to confirm this is the correct piston for your unit.
- Compression Restoration — a worn or damaged piston allows combustion gases to blow past the rings, causing hard starting, loss of power, and increased oil consumption; installing this part restores proper cylinder pressure and engine output.
The piston is the reciprocating heart of the four-stroke engine: it travels up and down inside the cylinder bore to compress the air-fuel mixture, transmit combustion force to the crankshaft via the connecting rod, and sweep exhaust gases out of the cylinder. In the GXV390, the piston must maintain a precise fit within the bore so the piston rings can seal combustion pressure above and control oil film below. When a piston wears, scores, or cracks, compression drops, oil burns off, and the engine loses the power needed to drive the demanding loads that H-series tractors and commercial HRC7013 mowers place on it. Replacing the piston with a correctly sized OEM part is the foundation of any top-end engine rebuild.
Part Details
| Part Number | 13101-ZF6-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Piston (STD) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Commercial Mower | HRC7013 | All |
| Lawn Tractor | H2013, H2113, H4013 | All |
| Multi-Purpose Tractor | H5013, RT5000 | All |
| Riding Mower | H3011, H3013 | All |
| Vertical Shaft Engine | GXV390 | 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.
