The Genie 11978GT is a genuine OEM Nylon Flat Washer,.515X.88X.093, designed for a wide range of Genie aerial lifts, material lifts, and light towers. As a genuine OEM component, this washer is manufactured to the exact material grade and dimensional tolerances specified for the original assembly, ensuring correct load distribution and surface protection wherever it is used. This part fits Genie GS scissor lifts, S and Z series boom lifts, TML light towers, and Genie material lift lines including the Superlift Advantage, Superlift Contractor, Load Lifter, AWP, and IWP Super Series. Cross-reference part number 11978GT against your Genie parts manual to confirm application before ordering.
Key Features
- Nylon-Grade Material Integrity — Molded from nylon for consistent compressibility and corrosion resistance, making this washer well-suited for use in both indoor slab-duty and outdoor rough-terrain environments.
- Exact Dimensional Match — At .515X.88X.093, this washer seats flush against mating surfaces without shimming or modification, preserving correct clamping force across the joint.
- Broad Genie Fleet Coverage — Fits GS scissor lifts, S and Z series boom lifts, TML-4000 and TML-4000N light towers, and a wide range of Genie push-around and material lift lines.
- Protects Fastened Surfaces — Distributes bolt or fastener load evenly across the contact area, reducing the risk of surface gouging, loosening, or fastener pull-through over the service life of the joint.
- Genuine OEM Sourcing — Supplied as a genuine Genie OEM part, this washer meets the same specifications as the component installed at the factory, supporting correct reassembly after maintenance or repair.
A flat washer serves as an interface between a fastener — such as a bolt head or nut — and the surface it bears against. By spreading the clamping load over a wider area, the washer prevents the fastener from embedding into or damaging the mating material, which is especially important when joining softer substrates like nylon housings, plastic covers, or thin sheet metal. In a nylon flat washer, the material also provides a degree of electrical isolation and vibration dampening. When a washer is missing, undersized, or deformed, fasteners can loosen prematurely, surfaces can crack or deform under load, and the overall integrity of the bolted joint is compromised — making correct washer specification a straightforward but essential part of any reassembly.
Part Details
| Part Number | 11978GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Flat Washer, Nylon, .515X.88X.093 |
Compatibility & Fitment
| Name | Model |
|---|---|
| TML-4000 | TML-4000 |
| TML-4000N | TML-4000N |
| Superlift Advantage | Superlift Advantage |
| Superlift Contractor | Superlift Contractor |
| Load Lifter | Load Lifter |
| IWP Super Series | IWP Super Series |
| Genie Load Lifter | Genie Load Lifter |
| CWP Super Series | CWP Super Series |
| AWP | AWP |
| S-40 XC | S-40 XC |
| S-45 XC | S-45 XC |
| S-40 TRAX | S-40 TRAX |
| S-45 TRAX | S-45 TRAX |
| S-40 HF | S-40 HF |
| S-45 HF | S-45 HF |
| S-60 J | S-60 J |
| S-80 J | S-80 J |
| GS-1530 | GS-1530 |
| GS-1532 | GS-1532 |
| GS-1930 | GS-1930 |
| GS-1932 | GS-1932 |
| GS-2632 | GS-2632 |
| GS-3232 | GS-3232 |
| GS-2646 | GS-2646 |
| GS-3246 | GS-3246 |
| GS-4046 | GS-4046 |
| Z-60/37 DC | Z-60/37 DC |
| Z-60/37 FE Hybrid | Z-60/37 FE Hybrid |
| Z-60 DC | Z-60 DC |
| Z-60 FE Hybrid | Z-60 FE Hybrid |
| Z-45 FE Hybrid | Z-45 FE Hybrid |
| Z-45 DC | Z-45 DC |
| Z-60 FE | Z-60 FE |
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.
