The Honda 90021-ZB4-800 Hexagon Bolt (10X243) is a genuine OEM fastener designed for the EW140 welder generator. As a direct Honda OEM part, it is manufactured to the exact dimensions and grade required by Honda's own engineering specifications for this machine. Sourcing the correct bolt by part number 90021-ZB4-800 ensures the fastener matches the original in thread pitch, shank length, and head geometry — the details that matter when reassembling a welder generator correctly.
Key Features
- Genuine OEM Fastener — supplied directly from Honda, matching the original bolt's thread specification and dimensional tolerances for the EW140 welder generator
- Exact Dimensional Match — the 10X243 designation identifies a specific thread and length combination; using the correct size prevents cross-threading, improper clamping, and assembly errors
- Confirmed Fitment — listed for the EW140 welder generator; verify your unit's serial number against the fitment table to confirm this is the correct bolt for your serial range
A hexagon bolt is a standard threaded fastener used throughout Honda power equipment to clamp, secure, and align components during assembly. The 10X243 size designation specifies the bolt's thread diameter and shank length, making it application-specific rather than a general-purpose substitute. Using a bolt of the wrong length or thread pitch in a welder generator can result in insufficient clamping force, damaged threads, or misaligned components — all of which affect the reliability of the assembly. Replacing a worn, stripped, or damaged bolt with the correct Honda OEM part restores the joint to its original specification.
Part Details
| Part Number | 90021-ZB4-800 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Hexagon Bolt (10X243) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Welder Generator | EW140 | 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.
