The Honda 93891-05012-00 Screw-Washer (5X12) is a genuine OEM fastener used across a wide range of Honda horizontal shaft engines, vertical shaft engines, and generators. As an OEM component sourced directly from Honda, this screw-washer is manufactured to the same specifications as the original hardware installed at the factory. This part is listed for models including the GX240, GX270, GX340, GX390, GXV270, GXV340, EB2200, EB2500, EG1400, EG2200, EG2500, EG2500, EM1600, EM1800, EM2200, EM2500, EV4010, EV6010, EVD4010, EX2200, EZ1400, and EZ2500 — always confirm part number 93891-05012-00 against your machine's serial number and Honda parts diagram before ordering.
Key Features
- Genuine Honda OEM Hardware — sourced directly from Honda, this screw-washer meets the same dimensional and mechanical requirements as the original fastener on your machine.
- Integrated Washer Design — the captive washer distributes clamping load across the mating surface, reducing the risk of loosening that can occur with a plain screw and separate washer.
- Broad Fitment — listed for Honda GX-series and GXV-series engines as well as multiple Honda generator models, including the EB, EG, EM, EV, EX, and EZ lines; verify your serial number against the fitment table to confirm the correct application.
- Exact Replacement — replacing a missing or damaged screw-washer with the correct OEM part restores proper fastener torque and surface retention, keeping assemblies secure during operation.
A screw-washer is a fastener that combines a machine screw with a permanently attached washer flange. The integrated washer spreads the clamping force over a wider area than the screw head alone, which helps prevent pull-through and surface damage on the panels, covers, and components it secures. When this type of fastener is missing, stripped, or substituted with an incorrect size, the assembly it holds can work loose under vibration — a common operating condition on both engines and generator sets — leading to rattles, misalignment, or component damage over time.
Part Details
| Part Number | 93891-05012-00 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Screw-Washer (5X12) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Generator | EB2500, EM1600, EM1800, EM2200, EM2500 | 1015040-9999999 |
| Generator | EG1400, EG2200, EG2500, EX2200, EZ1400, EZ2500 | All |
| Horizontal Shaft Engine | GX240, GX270, GX340, GX390 | All |
| Inverter Generator | EB2200 | 1015040-9999999 |
| RV Generator | EV4010, EV6010, EVD4010 | All |
| Vertical Shaft Engine | GXV270, GXV340 | 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.
