Titan part 448-250 is a pulley/fan assembly designed for use on compatible PowrLiner and PowrTwin sprayers. This assembly drives the belt that powers the fluid pump while the integrated fan provides cooling air to the hydraulic system or drive motor. Replacing a worn, cracked, or damaged pulley/fan restores proper belt tension, efficient power transfer, and adequate cooling to prevent overheating.
| Part Number | 448-250 |
|---|---|
| Part Description | Pulley/Fan Assembly |
| Brand | Titan |
| Fits | PowrLiner 4000, 4950, 5000, 6950; PowrTwin 3500 50th Anniversary, 4900 XLT, 4900 GH, 4900, 6900, 8900, 12000 Plus |
| Condition | New |
The Titan 448-250 Pulley/Fan Assembly is a genuine OEM component that serves a dual purpose on compatible PowrLiner and PowrTwin sprayers. The pulley transfers rotational power from the engine or motor to the fluid pump via a drive belt, while the integrated fan draws cooling air over the hydraulic system or drive components to prevent overheating. This combined assembly saves space and ensures critical systems operate within safe temperatures.
Over time, pulleys can become grooved, cracked, or out‑of‑round, and fan blades may break or warp. A damaged pulley causes belt slippage, noise, and reduced pumping efficiency. A compromised fan leads to inadequate cooling, potentially causing hydraulic fluid degradation or component failure. Replacing with the correct 448‑250 assembly restores proper belt tracking, efficient power transfer, and reliable cooling.
| Power transfer | Drives the fluid pump belt for material delivery |
|---|---|
| Cooling | Integrated fan moves air over hydraulic or drive components |
| System protection |
| Cracked pulley | Visible cracks in the pulley body or hub |
|---|---|
| Worn belt groove | Groove is worn, glazed, or uneven, causing belt slippage |
| Broken fan blades | Missing, cracked, or warped fan blades reduce airflow |
| Out‑of‑balance |
Titan part 448-250 is compatible with the following models. Always confirm fitment using the correct parts diagram for your exact model and serial number.
| Model | Component |
|---|---|
| PowrLiner 4000 | Pulley/Fan Assembly |
| PowrLiner 4950 | Pulley/Fan Assembly |
| PowrLiner 5000 | Pulley/Fan Assembly |
| PowrLiner 6950 | Pulley/Fan Assembly |
| PowrTwin 3500 50th Anniversary | Pulley/Fan Assembly |
| PowrTwin 4900 XLT | Pulley/Fan Assembly |
| PowrTwin 4900 GH | Pulley/Fan Assembly |
| PowrTwin 4900 | Pulley/Fan Assembly |
| PowrTwin 6900 | Pulley/Fan Assembly |
| PowrTwin 8900 | Pulley/Fan Assembly |
| PowrTwin 12000 Plus | Pulley/Fan Assembly |
When replacing the pulley/fan assembly, inspect these related components for wear or damage.
Always replace the belt when installing a new pulley to ensure proper grip and alignment.
Check the shaft and bearing for wear, as a damaged pulley can cause premature bearing failure.
Verify that the cooler core is clean and undamaged for maximum airflow from the fan.
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