Rod, Ultra 500

Graco Paint Sprayer Pump Piston Rod - 183563

• 500 ULTIMATE Hi-Boy - 820105
• 500 ULTIMATE Lo-Boy - 820170
• 231032 - 500 Ultra Series (Series B & C)
• 231041 - 500 Ultra Series (B&C) Complete
• 231054 - 500 Ultra Series (B&C) Lo-Boy Bare
• 231055 - 500 Ultra Series (B&C) Lo-Boy Complete
• 231108 - Roberts Mono bond Deluxe

The piston rod connects the internal parts to the motor and gear box. On the rods upstroke, it draws paint into the fluid section chamber, and on the down stroke it pushes the paint into the hose.