Powr part 107-016 is an outlet valve assembly – a critical component that controls the discharge of pressurized fluid from the pump on compatible PowrBeast, PowrLiner, and PowrTwin sprayers. This assembly allows high‑pressure fluid to exit the pump while preventing backflow, ensuring consistent pressure delivery to the spray gun. Replacing a worn, leaking, or stuck outlet valve restores proper pressure, eliminates pulsation, and ensures reliable spray performance.
| Part Number | 107-016 |
|---|---|
| Part Description | Outlet Valve Assembly |
| Brand | Powr |
| Fits | PowrBeast 4700, 7700, 9700; PowrLiner 4900 XLT, 4950, 6950, 4955, 6955, 8955; PowrTwin 4900, 6900, 8900, 12000 Plus |
| Condition | New |
The Powr 107-016 Outlet Valve Assembly is a key component in the pump manifold of many PowrBeast, PowrLiner, and PowrTwin sprayers. It acts as a one‑way check valve on the discharge side, allowing pressurized fluid to exit the pump during the pressure stroke while closing during the intake stroke to prevent backflow. This ensures consistent pressure delivery and efficient operation.
Over time, the outlet valve can wear, develop leaks, or become stuck due to debris, chemical attack, or spring fatigue. A faulty outlet valve causes pressure loss, pulsation, reduced flow, and can make the pump difficult to start. Replacing the outlet valve assembly restores proper sealing, eliminates pressure fluctuations, and ensures the sprayer delivers reliable, consistent output.
| Pressure control | Opens to allow pressurized fluid to exit the pump during the pressure stroke |
|---|---|
| Prevents backflow | Closes during the intake stroke to prevent fluid from returning into the pump |
| Maintains consistency | Helps deliver steady pressure to the spray gun, reducing pulsation |
| Loss of pressure | Pump cannot reach or maintain rated pressure |
|---|---|
| Pulsation / erratic output | Pressure gauge fluctuates or spray pattern is inconsistent |
| Valve sticking | Valve does not open or close properly; debris or wear present |
| During pump overhaul | Replace as part of a full pump rebuild to ensure long‑term reliability |
Powr part 107-016 is used on the following models. Always confirm with your machine's parts diagram.
| Model | Component |
|---|---|
| PowrBeast 4700 | Outlet Valve Assembly |
| PowrBeast 7700 | Outlet Valve Assembly |
| PowrBeast 9700 | Outlet Valve Assembly |
| PowrLiner 4900 XLT | Outlet Valve Assembly |
| PowrLiner 4950 | Outlet Valve Assembly |
| PowrLiner 6950 | Outlet Valve Assembly |
| PowrLiner 4955 | Outlet Valve Assembly |
| PowrLiner 6955 | Outlet Valve Assembly |
| PowrLiner 8955 | Outlet Valve Assembly |
| PowrTwin 4900 | Outlet Valve Assembly |
| PowrTwin 6900 | Outlet Valve Assembly |
| PowrTwin 8900 | Outlet Valve Assembly |
| PowrTwin 12000 Plus | Outlet Valve Assembly |
When replacing the outlet valve, consider these associated components.
Often replaced at the same time to ensure both sides of the pump are fresh.
If the outlet valve failed, check packings for wear; replace as a set.
A malfunctioning unloader can cause pressure issues; inspect and test.
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