The Multiquip 12220 is a genuine OEM Lock Washer 1/2 High Strength designed for a wide range of Multiquip equipment including AR13H, AR13HA/HAR, AR13HC, HTXD6i, STXD6i, GA9.7HE, WSHE-A Series, and LT6KV (60HZ) models. As a factory-sourced component, the 12220 meets the exact material grade and dimensional tolerances specified for these machines. This genuine OEM part ensures a true drop-in replacement with no guesswork on sizing or thread compatibility. Sourced directly through authorized Multiquip distribution, this part is backed by DHS Equipment and ready to ship.
Key Features
- High-Strength Material Grade — Engineered to the elevated tensile specification required for fastener assemblies under vibration and load stress, unlike standard-grade washers.
- Exact 1/2" Bore Fit — Sized to seat flush against mating hardware on Multiquip bolt assemblies, ensuring correct torque transfer without slippage during installation.
- Broad Cross-Equipment Compatibility — Confirmed fitment across AR13H series asphalt rollers, HTXD6i and STXD6i ride-on trowels, GA9.7HE generators, WSHE-A Series screeds, and LT6KV light towers.
- Vibration and Loosening Resistance — The lock profile bites into mating surfaces to resist fastener backing-out under continuous machine vibration, maintaining joint integrity over extended operation.
- Genuine OEM Sourcing — Manufactured to Multiquip's original specification and sold under the verified part number 12220, eliminating compatibility risk when ordering.
A lock washer is a hardened fastener component placed beneath a nut or bolt head to prevent the fastener from loosening under vibration, torque, or cyclical loading. In equipment like compactors, rollers, trowels, and generators, joints are subjected to continuous mechanical stress that can gradually back out standard fasteners — a lock washer's serrated or split profile grips both the fastener and the mating surface to resist this movement. When a lock washer is worn flat, cracked, or missing entirely, fasteners can work loose over time, leading to joint failure, structural misalignment, or safety-critical hardware becoming unsecured during operation.
Need help confirming this part fits your machine? Contact the DHS Equipment parts team with your model and serial number and we'll verify compatibility before you order.
Part Details
| Part Number | 12220 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Lock Washer 1/2 High Strength |
Compatibility & Fitment
| Name | Model |
|---|---|
| Rollers | AR13HA/HAR |
| Rollers | AR13HC |
| Rollers | AR13H |
| Gasoline Powered Generators | GA9.7HE |
| Vibratory Screeds | WSHE-A Series |
| Towable Towers | LT6KV (60HZ) |
| Whiteman Ride-On Power Trowels | HTXD6i |
| Whiteman Ride-On Power Trowels | STXD6i |
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.
