The Honda 91204-751-003 Oil Seal (20X31X7) is a genuine OEM replacement designed for H3011 and H3013 riding mowers. As a direct Honda OEM part, it is manufactured to the same specifications as the original, ensuring the seal dimensions and material performance match what came off the assembly line. This part is listed for both the H3011 and H3013 — verify your serial number against the fitment table to confirm the correct application for your unit.
Key Features
- Genuine Honda OEM Sealing — manufactured to exact dimensional specifications (20x31x7 mm) for consistent oil retention and leak-free performance in the drivetrain of H3011 and H3013 riding mowers.
- Direct OEM Replacement — this seal installs in place of the original with no alterations, maintaining proper shaft clearance and sealing integrity.
- Fits H3011 and H3013 Riding Mowers — listed for both models; confirm your unit's serial number against the fitment table before ordering, as Honda supersedes parts at serial breaks.
- Prevents Oil Loss — a correctly seated oil seal keeps lubricant where it belongs; a worn or damaged seal allows oil to escape, leading to inadequate lubrication and accelerated wear on rotating components.
An oil seal creates a dynamic barrier around a rotating shaft, preventing lubricant from leaking out of a gearcase or transmission housing while also blocking contaminants from entering. In a riding mower such as the H3011 and H3013, this function is essential to keeping the drivetrain properly lubricated and operating smoothly. When an oil seal deteriorates — cracking, hardening, or losing its lip tension — oil seeps past it, lubricant levels drop, and the components that depend on that lubrication begin to wear at an accelerated rate.
Part Details
| Part Number | 91204-751-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Oil Seal (20X31X7) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Riding Mower | H3011, H3013 | 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.
