The Genie 56.0021.0078GT is a genuine OEM Timer Relay designed for Genie GTH series telehandlers. Sourced directly from Genie, this component delivers the exact electrical timing function the machine's control system demands, with no guesswork on compatibility. It is confirmed to fit a wide range of GTH telehandler variants, including the GTH-5519, GTH-5519 S, GTH-3007, GTH-3007 FMS, GTH-3007 AU-AG, GTH-3007 ACF, GTH-3512SX, GTH-3512 ACF, GTH-4010SX, GTH-2506, GTH-2506 IIIA, GTH-2506 IIIB, GTH-2506 AU.3, and GTH-2506 ACF variants. Cross-reference part number 56.0021.0078GT against your machine's parts manual before ordering to confirm the correct application for your specific unit.
Key Features
- OEM-Specified Switching Timing — Built to the exact relay timing parameters Genie specifies for GTH telehandler control circuits, ensuring the electrical sequence operates as designed.
- Direct Plug-In Replacement — This relay seats into the existing socket and connector on the machine's electrical panel, aligning with the original mounting configuration without adaptation.
- Broad GTH Telehandler Coverage — Fits multiple GTH series models and regional variants, including IIIA/IIIB emission-tier units, ACF-spec machines, and AU-market configurations.
- Protects Controlled Functions from Timing Faults — A correctly functioning timer relay ensures that timed electrical functions — such as system lockouts, engine interlocks, or load management sequences — engage and disengage at the right intervals.
- Operational Safety Relevance — Timer relays in telehandler control systems often govern safety-critical interlocks. Replacing a faulty relay with a genuine OEM unit restores the intended logic and helps keep the machine operating within its designed safety parameters.
A timer relay is an electromechanical or solid-state device that controls when an electrical circuit is switched on or off, introducing a precisely calibrated delay or timed cycle into the machine's control system. In GTH telehandlers, timer relays are commonly used to manage engine functions, system interlocks, or operator-presence logic — sequences where timing accuracy directly affects both machine performance and safe operation. When a timer relay fails or drifts out of spec, the controlled function may not activate at the right moment, trigger false lockouts, or fail to disengage, resulting in erratic machine behavior or a system that will not complete its normal operating cycle.
Part Details
| Part Number | 56.0021.0078GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Timer Relay |
Compatibility & Fitment
| Name | Model |
|---|---|
| GTH-5519 | GTH-5519 |
| GTH-5519 S | GTH-5519 S |
| GTH-3007 AU-AG | GTH-3007 AU-AG |
| GTH-3512SX | GTH-3512SX |
| GTH-4010SX | GTH-4010SX |
| GTH-2506 | GTH-2506 |
| GTH-3007 | GTH-3007 |
| GTH-3007 FMS | GTH-3007 FMS |
| GTH-2506 IIIA | GTH-2506 IIIA |
| GTH-2506 IIIB | GTH-2506 IIIB |
| GTH-2506 AU.3 | GTH-2506 AU.3 |
| GTH-3007 ACF | GTH-3007 ACF |
| GTH-3512 ACF | GTH-3512 ACF |
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.
