The Genie 49409GT is a genuine OEM Lock Washer, M12 designed for a wide range of Genie aerial lifts, telehandlers, and light towers. Sourced directly from the OEM, this lock washer meets the exact specifications required for proper fastener retention across the equipment families it supports. This component is built for Genie S-series telescopic booms, GS rough-terrain scissor lifts, Z and TMZ articulating booms, GTH telehandlers, and TML light towers — making it one of the most versatile hardware items in the Genie parts catalog. Cross-reference part number 49409GT against your machine's parts manual to confirm the correct application before ordering.
Key Features
- Genuine OEM Material Grade — Manufactured to the same hardness and bite-angle spec as the original, ensuring the washer bites into fastener and mating surface the way the design requires.
- M12 Thread Compatibility — Sized to seat correctly on M12 fasteners with no shimming or adaptation — drops straight into the existing hardware stack.
- Broad Genie Fitment — Fits Genie S-series telescopic booms, GS rough-terrain scissor lifts, Z and TMZ articulating booms, GTH telehandlers, and TML portable light towers.
- Fastener Retention Under Vibration — Lock washers are a critical layer of joint security on mobile equipment; a failed or missing washer allows fasteners to back out under the constant vibration of travel and operation.
- Structural Joint Integrity — On aerial lifts and telehandlers, fastener loosening at structural connection points is a genuine safety concern; using the correct OEM-spec washer maintains the clamping load the joint was engineered to hold.
A lock washer works by creating spring tension between the fastener head and the mating surface, resisting rotational loosening caused by vibration and dynamic loading. On mobile equipment like boom lifts, scissor lifts, and telehandlers, nearly every major assembly — from structural booms to drive components — relies on properly retained fasteners to maintain safe, predictable operation. When a lock washer is missing, deformed, or underspec, the fastener it secures can gradually back out, compromising joint clamping force and potentially leading to component movement or failure. Replacing worn or damaged hardware with the correct OEM-spec washer restores the fastener stack to its original engineered condition.
Part Details
| Part Number | 49409GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Lock Washer, M12 |
Compatibility & Fitment
| Name | Model |
|---|---|
| TML-4000 | TML-4000 |
| TML-4000N | TML-4000N |
| S-80X | S-80X |
| S-80 | S-80 |
| S-85 | S-85 |
| 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 |
| GS-2668 RT | GS-2668 RT |
| GS-3268 RT | GS-3268 RT |
| GTH-844 | GTH-844 |
| GTH-1056 | GTH-1056 |
| GTH-644 | GTH-644 |
| GTH-842 | GTH-842 |
| GTH-636 | GTH-636 |
| TMZ-34/19 | TMZ-34/19 |
| TMZ-50/30 | TMZ-50/30 |
| TMZ-17/10 | TMZ-17/10 |
| Z-34 IC | Z-34 IC |
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.
