Aftermarket GRACO® 176637 Ball Stop Pin, piston (stainless steel) (Non-OEM)

Manufacturer: Total Finishing Supplies

Part Number: 529911

Comparable OEM Part Number: 176637

Description: Total Finishing's part # 17-3834 is a compatible replacement for GRACO® parts 176637 and 176-637, a ball stop pin for GRACO® spray equipment. This ball is the moving element of a check valve in the pump's fluid section: on each stroke it lifts off its seat to let coating through, then reseats to hold pressure. Compatible with GRACO® Viscount I 1000.

Common reasons for replacement:

• Replaced together with its seat during a fluid-section rebuild
• Sprayer loses prime or pressure as the ball wears out-of-round
• Fluid backflow from a ball that no longer seats cleanly
• Pitting or scoring from abrasive coatings

Manufactured to OEM-equivalent dimensions for proper fit and performance.

Comparable to GRACO® 176-637