The Honda 90081-ZA0-920 Sealing Bolt (25MM) is a genuine OEM component built for GX360 horizontal shaft engines. As a direct Honda replacement, this sealing bolt carries the exact dimensions and thread specification Honda engineers specified for the GX360, so it installs without modification against the mating surface it was designed to close. Confirm your engine's serial number against the fitment table before ordering to ensure this is the correct variant for your production run.
Key Features
- Genuine OEM Sealing Integrity — manufactured to Honda's original specification, so the bolt delivers the clamping load and sealing performance the GX360 requires at that port or passage
- Correct 25MM Length — the 25MM designation is the variant identifier; verify this matches your engine's requirement before ordering, as alternate lengths may be listed for nearby applications
- Direct GX360 Fitment — designed specifically for GX360 horizontal shaft engines; check your serial number against the compatibility table to confirm applicability to your unit
A sealing bolt closes an access port, drain passage, or threaded bore in an engine casting, preventing oil or other fluids from escaping during operation. Where a standard fastener simply clamps two parts together, a sealing bolt incorporates a designed-in sealing function — through thread form, an integral washer, or a sealing feature at its head — to block fluid migration at that point. When a sealing bolt is missing, damaged, or of the wrong specification, the resulting leak can lead to oil loss, contamination, or engine damage over time, making an exact-match replacement essential.
Part Details
| Part Number | 90081-ZA0-920 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Sealing Bolt (25MM) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX360 | 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.
