The Genie 1260900GT is a genuine OEM DEF Coolant Valve, TCD3.6, T4F built for Genie GTH series telehandlers, including the GTH-844, GTH-1056, GTH-1256, and GTH-1544. As a direct OEM replacement, this valve is manufactured to the same specifications as the original part it replaces, ensuring proper function within the DEF and coolant circuit on TCD3.6 Tier 4 Final-equipped machines. Cross-reference part number 1260900GT against your machine's parts manual to confirm fitment for your specific unit before ordering.
Key Features
- Genuine OEM Quality — Sourced directly from Genie, this valve meets the original material and dimensional standards required for the TCD3.6 T4F engine application.
- Direct OEM Replacement — Designed as a drop-in replacement for the original valve, supporting straightforward installation without adaptation.
- Broad GTH Telehandler Fitment — Compatible with the GTH-844, GTH-1056, GTH-1256, and GTH-1544, covering a wide range of Genie telehandler configurations.
- DEF System Integrity — A correctly functioning DEF coolant valve maintains proper fluid temperature regulation within the emissions system; a faulty valve can disrupt DEF operation and trigger fault codes that take the machine out of service.
The DEF coolant valve controls the flow of engine coolant used to heat or protect the diesel exhaust fluid (DEF) system on Tier 4 Final engines. Coolant is routed through the DEF system to prevent the fluid from freezing in cold conditions and to maintain the correct operating temperature for proper DEF dosing. When this valve fails or sticks, the DEF system may not reach the correct temperature range, leading to dosing errors, warning codes, or a machine derate that prevents normal operation.
Part Details
| Part Number | 1260900GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | DEF Coolant Valve, TCD3.6, T4F |
Compatibility & Fitment
| Name | Models |
|---|---|
| GTH-844 | GTH-844 |
| GTH-1056 | GTH-1056 |
| GTH-1256 | GTH-1256 |
| GTH-1544 | GTH-1544 |
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.
