The Honda 13010-Z5L-004 Piston Ring Set (STD) is a genuine OEM component designed for GX340 horizontal shaft engines, GXV340 vertical shaft engines, EB3800, EB4000, EB5000, EB6500, EB7000, EG5000, EM3800, EM4000, EM5000, EM6500, and EM7000 generators, the HS1132 two-stage snow blower, and the WT40 water pump. As a genuine Honda part, this ring set is manufactured to the same specification as the original, ensuring correct ring gap, tension, and bore sizing for a standard (STD) bore. Confirm your engine's serial number against the fitment table before ordering, as Honda supersedes piston components at production breaks and this ring set may not be interchangeable across all serial ranges sharing these model codes.
Key Features
- Compression and Oil Control Restored — a complete standard-bore ring set replaces worn compression rings and oil control rings in a single kit, addressing the root cause of blow-by, oil burning, and power loss
- Genuine Honda OEM Part — manufactured to Honda's original ring gap and tension specs, so bore sealing is correct from the first start rather than requiring break-in adjustments to compensate for dimensional variance
- Broad Equipment Compatibility — fits GX340 and GXV340 engines as used across a wide range of equipment including EB and EM generators, the EM7000 and EB7000 inverter generators, the HS1132 two-stage snow blower, and the WT40 water pump
- Check Your Serial Number — Honda updates piston ring specifications at production serial breaks; verify your unit's serial number against the compatibility table to confirm this is the correct set for your machine
- Standard Bore Only — the STD designation means this set is sized for a factory-dimension bore; do not install in a cylinder that has been bored oversize, as ring-to-wall clearance will be incorrect
Piston rings seal the combustion chamber between the piston and the cylinder wall, maintaining the compression pressure needed for reliable starting and full power output. A set typically includes one or more compression rings to hold combustion gases above the piston and an oil control ring to scrape excess oil from the cylinder wall and return it to the sump. When rings wear, lose tension, or break, compression drops, oil enters the combustion chamber, and the engine begins to smoke, consume oil, and run poorly. Replacing the full ring set at a standard engine rebuild restores the bore seal and returns the engine to its original output — whether that engine is driving a generator, powering a pump, or running a snow blower.
Part Details
| Part Number | 13010-Z5L-004 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Piston Ring Set (STD) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EB3800, EB4000, EB5000, EB6500, EG5000, EM3800, EM4000, EM5000, EM6500 | 4099048-9999999 |
| Horizontal Shaft Engine | GX340 | All |
| Inverter Generator | EB7000, EM7000 | 4099048-9999999 |
| Two-Stage Snow Blower | HS1132 | 4099048-9999999 |
| Vertical Shaft Engine | GXV340 | All |
| Water Pump | WT40 | 4099048-9999999 |
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.
