The Multiquip 0040505000 Star Tooth Washer is a genuine OEM component designed for GAC-series gasoline arc welder and generator models including the GAC2.5HR, GAC2.2HZ, GAC3.6HR, GAC6HR, GAC6HRS, and GAC9.7HEA. As a direct OEM replacement, this washer is manufactured to the same specifications as the original part, ensuring a correct and consistent installation every time. Sourced directly through authorized Multiquip distribution channels, the 0040505000 is the exact part called out in your machine's service documentation.
Key Features
- Genuine OEM Construction: — Manufactured to Multiquip's original material and dimensional tolerances, ensuring the serrated teeth engage and lock with the same holding force as the factory-installed washer.
- Direct-Fit Installation: — Matches the original mounting configuration on GAC-series machines, dropping in without modification to fastener hardware or surrounding components.
- Broad GAC-Series Compatibility: — Confirmed fitment across GAC2.5HR, GAC2.2HZ, GAC3.6HR, GAC6HR, GAC6HRS, and GAC9.7HEA models.
- Secure Fastener Retention: — The star tooth profile bites into mating surfaces under load, resisting loosening caused by vibration during generator or welder operation.
- Electrical System Integrity: — Proper seating of this washer maintains secure grounding and bonding connections, which is critical in welding and power generation equipment where loose hardware can cause arcing or inconsistent output.
A star tooth washer — also called an external tooth lock washer — is a hardened fastening component with serrated outer teeth that grip the mating surface when a bolt or nut is torqued down. In generator and arc welder applications, where continuous vibration and thermal cycling are constant, these washers prevent fasteners from backing out over time. A worn, missing, or incorrect washer in this role can allow hardware to loosen, compromising structural connections and, in electrical systems, degrading ground continuity and increasing the risk of connection failure.
For fitment questions or parts support, contact DHS Equipment directly.
Part Details
| Part Number | 0040505000 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Star Tooth Washer |
Compatibility & Fitment
| Name | Model |
|---|---|
| Gasoline Powered Generators | GAC2.5HR |
| Gasoline Powered Generators | GAC9.7HEA |
| Gasoline Powered Generators | GAC6HRS |
| Gasoline Powered Generators | GAC6HR |
| Gasoline Powered Generators | GAC3.6HR |
| Gasoline Powered Generators | GAC2.2HZ |
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.
