Titan part 0290797 is a replacement pulley, AK66X3/4 used to transfer power from the engine or motor to the pump on compatible PowrLiner and PowrTwin airless sprayers. This pulley features a 3/4″ bore and precision‑machined grooves for proper belt tracking and vibration‑free operation.
| Part Number | 0290797 |
|---|---|
| Part Description | Pulley, AK66X3/4 |
| Brand | Titan |
| Fits |
|
| Condition | New |
The Titan 0290797 Pulley (AK66X3/4) is an OEM replacement component designed for PowrLiner 4955, 6955, 8955 and PowrTwin 4900, 6900, 8900, 12000 Plus airless sprayers. It mounts to the engine or motor crankshaft (3/4″ bore) and drives the pump via a V‑belt, providing reliable power transfer.
A worn, cracked, or damaged pulley can cause belt slippage, reduced spray pressure, unusual vibration, or complete loss of pump drive. Replacing the pulley restores proper belt alignment, consistent power transfer, and smooth sprayer operation.
| Power transmission | Transfers rotational energy from engine/motor to pump |
|---|---|
| Speed regulation | Pulley diameter determines pump RPM and output pressure |
| Belt alignment | Maintains proper tracking to reduce belt wear and noise |
| Cracked or broken pulley | Visible damage, especially around the hub or rim |
|---|---|
| Worn grooves | Grooves are shiny, hooked, or no longer grip the belt properly |
| Bent or wobbling | Pulley runs out of true, causing vibration and belt slap |
| Bore damage | Keyway wallowed out or set screw threads stripped |
Titan part 0290797 (AK66X3/4) is a direct replacement pulley for the following sprayer models. Confirm your sprayer's original pulley bore size (3/4″) and belt type before ordering.
| Brand / Model | Components |
|---|---|
| PowrLiner 4955 | Pulley, AK66X3/4 |
| PowrLiner 6955 | Pulley, AK66X3/4 |
| PowrLiner 8955 | Pulley, AK66X3/4 |
| PowrTwin 4900 | Pulley, AK66X3/4 |
| PowrTwin 6900 | Pulley, AK66X3/4 |
| PowrTwin 8900 | Pulley, AK66X3/4 |
| PowrTwin 12000 Plus | Pulley, AK66X3/4 |
When replacing the pulley, inspect or replace these associated components for reliable operation.
Always replace the belt when installing a new pulley. An old, glazed, or stretched belt will wear the new pulley prematurely.
A sheared or worn key can cause slippage and damage the pulley bore. Replace with new hardware.
If the pump pulley is also damaged or the pump bearings are seized, replace them together to avoid repeat failure.
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