The Honda 91206-921-000 Oil Seal (16X28X6) is a genuine OEM component designed for a wide range of Honda engines, outboard motors, generators, RV generators, and lawn tractors — including GX360 horizontal shaft engines, BF75 and BF100 outboard motors, EL5000, ES6500, and EX5500 generators, EV4010, EV6010, and EVD4010 RV generators, H4514, HT3813, and HT4213 lawn tractors, and the B75 and BF8 portable outboard motors. As a genuine Honda OEM part, this oil seal is manufactured to the exact dimensions Honda specifies, ensuring a consistent, leak-free fit across every application it is listed for. Because Honda supersedes parts at serial-number breaks, always confirm your unit's serial number against the fitment table before ordering.
Key Features
- Genuine OEM Sealing Integrity — manufactured by Honda to the exact 16 mm × 28 mm × 6 mm dimension specification, delivering the consistent sealing performance the original design requires
- Broad Cross-Equipment Fitment — listed for GX360 horizontal shaft engines, BF75 and BF100 outboards, EL5000, ES6500, and EX5500 generators, EV4010, EV6010, and EVD4010 RV generators, and H4514, HT3813, and HT4213 lawn tractors, including B75 and BF8 portable outboards
- Direct OEM Replacement — drops in as a like-for-like replacement with no modifications needed to restore proper oil containment
- Serial Number Verification Recommended — Honda parts are superseded at specific serial breaks; confirm your machine's serial number against the fitment table to ensure this is the correct seal for your unit
- Prevents Oil Loss — a worn or damaged oil seal allows lubricant to escape, leading to oil contamination of surrounding components and potential internal damage from inadequate lubrication
An oil seal creates a dynamic barrier between a rotating shaft and the surrounding housing, keeping lubricating oil inside the engine, gearcase, or drivetrain where it belongs while blocking contaminants from entering. In outboard motors, generators, lawn tractors, and engines alike, a correctly seated oil seal is essential to maintaining proper oil pressure and preventing lubricant from migrating into areas where it can cause damage or create external leaks. When an oil seal deteriorates — through heat cycling, age, or mechanical wear — it allows oil to escape past the shaft, which can lead to low oil levels, fouled components, and accelerated internal wear if left unaddressed.
Part Details
| Part Number | 91206-921-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Oil Seal (16X28X6) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EL5000, ES6500, EX5500 | All |
| Horizontal Shaft Engine | GX360 | All |
| Lawn Tractor | H4514, HT3813, HT4213 | All |
| Outboard Motor | BF75 | All |
| Portable Outboard Motor | B75, BF8, BF100 | All |
| RV Generator | EV4010, EV6010, EVD4010 | 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.
