The Honda 13101-805-000 Piston (Standard) is a genuine OEM component designed for the G30 horizontal shaft engine. As a direct Honda OEM part, it is manufactured to the original production specification, ensuring the correct bore diameter and ring groove dimensions for a proper fit in the G30. Check your engine's serial number against the fitment table to confirm this is the right piston for your unit before ordering.
Key Features
- Genuine OEM Piston — sourced directly from Honda, this piston meets the exact bore dimensions and ring groove tolerances the G30 engine was built around, ensuring proper compression and oil control
- Standard Bore Specification — the Standard sizing means this piston is matched to an unworn or freshly honed cylinder bore; confirm your bore has not been oversized before installation
- Serial Number Verification Recommended — Honda supersedes piston part numbers at production breaks, so always cross-reference your engine serial number with the fitment table to confirm compatibility
- Compression and Engine Integrity — a worn or damaged piston leads to lost compression, increased oil consumption, and rough running; replacing it with this OEM piston restores the engine's ability to build and hold the compression the G30 depends on
The piston is the reciprocating heart of a four-stroke engine. It travels up and down inside 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. Piston rings seated in the ring grooves seal combustion pressure above and control oil film below. When the piston wears — through scoring, ring groove damage, or out-of-round wear — compression drops, oil burns, and the engine loses the power and efficiency it was designed to deliver. Replacing it with the correct standard-bore OEM piston restores the tight tolerances the G30 needs to run cleanly and develop full power.
Part Details
| Part Number | 13101-805-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Piston (Standard) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | G30 | 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.
