The Honda 91201-Z7E-003 Oil Seal (35X52X8) is a genuine OEM component designed for a wide range of Honda horizontal shaft engines, generators, two-stage snow blowers, and water pumps. As an exact Honda original, this seal is manufactured to the same specifications as the part it replaces, ensuring a proper fit across every application it covers. It is listed for GX340 and GX390 horizontal shaft engines, EB3800, EB4000, EB5000, and EB6500 generators, EG5000 and EG6500 generators, EM3800, EM4000, EM5000, and EM6500 generators, HS928 and HS1332 two-stage snow blowers, HSS928 and HSS1332 two-stage snow blowers, and the WT40 water pump — verify your serial number against the fitment table to confirm the correct application for your unit. Because Honda supersedes parts across serial ranges, cross-referencing part number 91201-Z7E-003 against your machine's serial number is the surest way to confirm you have the right seal before installation.
Key Features
- Genuine OEM Sealing Integrity — manufactured by Honda to the original lip profile and dimensional tolerances that control oil retention for this seal size, not an approximation.
- Broad Cross-Application Fitment — listed for GX340 and GX390 engines, multiple EB, EG, and EM generator frames, HS928, HS1332, HSS928, and HSS1332 two-stage snow blowers, and the WT40 water pump; confirm your model and serial number before ordering.
- Direct-Replacement Sizing — the 35X52X8 designation identifies the shaft diameter, outer diameter, and seal width, so installation requires no trimming or adaptation on compatible applications.
- Prevents Oil Loss at the Shaft — a compromised seal allows oil to escape past the rotating shaft, leading to oil starvation and accelerated wear in the equipment it serves; replacing a worn seal restores the barrier that keeps oil where it belongs.
An oil seal sits at the point where a rotating shaft exits the engine or equipment housing, forming a dynamic lip seal that prevents engine or gear oil from escaping along the shaft. The lip maintains constant contact with the spinning shaft surface, keeping oil inside the housing while blocking contaminants from entering. When the seal lip hardens, cracks, or wears, oil begins to leak at the shaft exit — a loss that, if ignored, can progress to oil starvation and serious internal damage in the engine, gearcase, or equipment assembly it protects.
Part Details
| Part Number | 91201-Z7E-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Oil Seal (35X52X8) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EB3800, EB4000, EB5000, EB6500, EG5000, EG6500, EM3800, EM4000, EM5000, EM6500 | All |
| Horizontal Shaft Engine | GX340, GX390 | All |
| Two-Stage Snow Blower | HS928, HS1332, HSS928, HSS1332 | All |
| Water Pump | WT40 | 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.
