The Honda 91353-Z7E-003 O-Ring (14mm) is a genuine OEM sealing ring designed for a broad range of Honda GX-series horizontal shaft engines and Honda generators, including GX160, GX200, GX270, and GX390 engines as well as EB3800, EB4000, EB5000, EB6500, EM3800, EM4000, EM5000, EM6500, and EP2500 generators. As a genuine Honda part, this O-Ring (14mm) is manufactured to the exact dimensional tolerances and durometer spec Honda requires, ensuring a proper seal where aftermarket alternatives may allow seepage over time. Because Honda supersedes sealing components at serial breaks, verify your machine's serial number against the fitment table before ordering to confirm this is the correct listing for your unit.
Key Features
- Genuine OEM Sealing Integrity — manufactured to Honda's exact 14mm dimensional spec, delivering the compression and elasticity needed to maintain a leak-free seal in service
- Direct-Fit Replacement — matches the original profile exactly, so this O-Ring (14mm) seats and seals without modification during reassembly
- Wide Fitment Coverage — listed for GX160, GX200, GX270, and GX390 horizontal shaft engines as well as EB, EM, and EP generator models; confirm your serial number against the fitment table to verify the correct application
- Prevents Fluid Loss — a degraded or damaged O-ring allows fluid to bypass the sealing surface, leading to leaks that can affect engine or generator performance; replacing it at the first sign of weeping keeps the assembly sealed
An O-ring is a circular elastomeric seal used throughout Honda engines and generators wherever two mating surfaces must contain oil, fuel, or coolant under pressure or vacuum. The 14mm designation refers to the ring's inner diameter, which determines whether it compresses correctly in its groove — too small and it binds or distorts; too large and it fails to seat and seal. When an O-ring hardens, cracks, or is nicked during disassembly, the seal is compromised and fluid begins to seep past it. Replacing a worn O-ring with the correct Honda part number 91353-Z7E-003 restores the integrity of that joint and prevents the fluid loss that follows.
Part Details
| Part Number | 91353-Z7E-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | O-Ring (14mm) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EB3800, EB4000, EB5000, EB6500, EM3800, EM4000, EM5000, EM6500, EP2500 | All |
| Horizontal Shaft Engine | GX160, GX200, GX270, GX390 | 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.
