Part number 800-336 is an Outlet Valve Retainer used in Airless Sprayer 1140I and IA, 740 I and IA, 840 I and IA; Advantage 1100, 600, 700, GPX 85; Helix FR, VR; and Impact 1140, 1640, 740-840, 740, 840, 1040, 1140 I and IA models. This component holds the outlet valve in position within the pump assembly, ensuring proper sealing and fluid flow. Replacing a worn, cracked, or corroded outlet valve retainer restores pump integrity and maintains consistent pressure.
| Part Number | 800-336 |
|---|---|
| Part Description | Outlet Valve Retainer |
| Brand | Multiple |
| Fits | Airless Sprayer 1140I, 1140IA, 740 I, 740 IA, 840 I, 840 IA; Advantage 1100, 600, 700, GPX 85; Helix FR, VR; Impact 1140, 1640, 740-840, 740, 840, 1040, 1140 I, 1140 IA |
| Condition | New |
The 800-336 Outlet Valve Retainer is a critical component in the pump assembly of various Airless Sprayer, Advantage, Helix, and Impact models. It secures the outlet valve in its proper position within the pump cylinder or manifold, ensuring that the valve maintains correct alignment and sealing against the valve seat.
This retainer is typically threaded or pressed into the pump housing and must withstand high pressures and repeated cycling. A properly functioning outlet valve retainer ensures that the outlet valve opens and closes correctly, allowing fluid to exit the pump under pressure while preventing backflow. A damaged or worn retainer can allow the valve to shift, leading to leaks, pressure loss, erratic operation, and accelerated wear of valve components. Replacing a cracked, corroded, or deformed outlet valve retainer restores pump integrity and ensures reliable, leak‑free operation.
| Valve retention | Holds the outlet valve in correct position within the pump |
|---|---|
| Leak prevention | Ensures valve maintains proper sealing to prevent backflow |
| Pressure containment | Helps maintain system pressure by securing the valve assembly |
| Fluid leaks | Paint or fluid seeping from valve area |
|---|---|
| Pressure loss | Inconsistent or low pressure during operation |
| Cracked / damaged | Visible cracks or deformation of the retainer |
| Corrosion | Rust or chemical attack weakening the retainer |
Part number 800-336 is compatible with the following models. Always confirm fitment using the correct parts diagram for your exact model and revision.
| Brand / Model | Component |
|---|---|
| Airless Sprayer 1140 I | Outlet Valve Retainer |
| Airless Sprayer 1140 IA | Outlet Valve Retainer |
| Airless Sprayer 740 I | Outlet Valve Retainer |
| Airless Sprayer 740 IA | Outlet Valve Retainer |
| Airless Sprayer 840 I | Outlet Valve Retainer |
| Airless Sprayer 840 IA | Outlet Valve Retainer |
| Advantage 1100 | Outlet Valve Retainer |
| Advantage 600 | Outlet Valve Retainer |
| Advantage 700 | Outlet Valve Retainer |
| Advantage GPX 85 | Outlet Valve Retainer |
| Helix FR | Outlet Valve Retainer |
| Helix VR | Outlet Valve Retainer |
| Impact 1140 | Outlet Valve Retainer |
| Impact 1640 | Outlet Valve Retainer |
| Impact 740-840 | Outlet Valve Retainer |
| Impact 740 | Outlet Valve Retainer |
| Impact 840 | Outlet Valve Retainer |
| Impact 1040 | Outlet Valve Retainer |
| Impact 1140 I | Outlet Valve Retainer |
| Impact 1140 IA | Outlet Valve Retainer |
When replacing the outlet valve retainer, these components are often inspected or replaced at the same time to ensure complete pump reliability.
The valve seat may be worn or pitted; replace if necessary.
The sealing element may be worn; replace along with the retainer.
A weak spring can affect valve operation; inspect and replace if needed.
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