The Graco 19D951 Endurance Pump Lower (180cc) is an OEM replacement fluid section used on Contractor King air-powered sprayer packages that run an Endurance lower. It is rated for a maximum fluid working pressure of 7,250 psi (50 MPa / 500 bar) and is typically selected when replacing a worn fluid section or rebuilding a Contractor King setup (cart, wall-mount, or bare pump package).
| Part Number | 19D951 |
|---|---|
| Product Type | Endurance Pump Lower / Fluid Section |
| Displacement | 180cc |
| Maximum Fluid Working Pressure | 7,250 psi (50 MPa / 500 bar) |
| Common Platform | Contractor King (air-powered) using an Endurance lower |
The Graco 19D951 Contractor King Endurance Pump Lower (180cc) is an OEM pump lower (fluid section) designed for high-pressure air-powered Contractor King sprayer configurations that use an Endurance lower. This component mounts beneath the air motor and pressurizes coating material for spraying.
In many Contractor King packages, the power unit (air motor + cart or wall-mount frame) is sold separately from the Endurance lower. If the unit is branded Contractor King and the fluid section is an Endurance pump lower, 19D951 is the correct OEM lower for the configurations listed below.
| Maximum Fluid Working Pressure | 7,250 psi (50 MPa / 500 bar) |
|---|---|
| Displacement | 180cc |
| System Type | Air-powered Contractor King systems using an Endurance lower |
The 19D951 lower is commonly installed on the following Contractor King configurations:
| Machine / Package | Typical Configurations | Fitment Notes |
|---|---|---|
| Contractor King 45:1 | Cart packages; Wall-mount packages | Used when the system is equipped with an Endurance pump lower |
| Contractor King 60:1 | Cart packages; Wall-mount packages | Used when the system is equipped with an Endurance pump lower |
| Contractor King (air-powered) | Cart, wall mount, or bare pump package | If branded “Contractor King” and using an Endurance fluid section, 19D951 is the correct lower |
Repair kits for this Endurance lower include a packing set designed for chemical resistance and durability in applications below 140 °F (60 °C). The packing set includes:
Full Repair Kit
Throat Seal Kit
Piston Seal Kit
Fitment note: Contractor King packages can vary by cart, wall-mount, or bare pump configuration. Match the existing lower style (Endurance) and confirm the system is Contractor King-branded for correct selection.
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