Graco Paint Sprayer Pump Piston Rod - 243174
The piston rod connects the internal parts to the motor and gear box. On the rods upstroke, it draws paint into the chamber, and on the down stroke it pushes the paint into the hose.
For use with these airless paint sprayers:
Part #: 206994
Part #: 235703
Part #: 18B260
Part #: 246426
Part #: 243176
Part #: 243190