The Honda 91203-766-003 is a genuine OEM Oil Seal (12X25X7) designed for GX160 horizontal shaft engines. As a direct Honda OEM component, this seal is manufactured to the exact dimensional specifications the GX160 requires, ensuring a proper fit the first time. Confirm your engine's serial number against the fitment table before ordering, as Honda issues serial-range supersessions on sealing components.
Key Features
- OEM Sealing Integrity — manufactured to Honda's exact dimensional specification for this bore, shaft, and lip geometry, so the seal retains oil where aftermarket alternatives may not.
- Exact Dimensional Fit — the 12X25X7 sizing is specific to this application; this part installs directly into the GX160 without modification.
- Serial-Range Verification — Honda updates seal part numbers at production serial breaks; always cross-check your engine's serial number against the fitment table to confirm this is the correct supersession for your unit.
- Leak Prevention — a worn or hardened oil seal allows oil to escape past the shaft, leading to oil loss, contamination of surrounding components, and potential engine damage from insufficient lubrication.
An oil seal creates a dynamic, oil-tight barrier between a rotating shaft and a stationary housing, keeping engine oil inside the crankcase while blocking contaminants from entering. On GX160 horizontal shaft engines, this seal maintains the oil film that lubricates critical internal components, and its lip must remain pliable and seated to function correctly. When the seal deteriorates — through heat cycling, age, or wear — it weeps oil past the shaft, which can cause low oil levels and accelerate internal wear if left unaddressed.
Part Details
| Part Number | 91203-766-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Oil Seal (12X25X7) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX160 | 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.
