GRACO Endurance MaxLife Piston Pump (1 5/16" Inlet, 3/8" Outlet) - (SKU: 16X423) Designed for easy replacement of

Designed for easy replacement of regulator seats

and specialty finishing

The GRACO 17W057 is a cap screw with a hex head

Hardened steel / treated alloy

Replace worn or damaged pistons with the genuine GRACO 260369 part

GRACO Endurance MaxLife Piston Pump (1 5/16" Inlet, 3/8" Outlet) - (SKU: 16X423) Designed for easy replacement ofThe GRACO 16X423 Endurance MaxLife Piston Pump is a replacement pump designed for use in GRACO GMAX II 7900 Standard Series Hi Boy sprayers (model year 2019 and newer). It is constructed with a Chromex rod and hardened stainless steel cylinder, offering enhanced durability and longevity. The pump is intended to provide reliable, high pressure fluid transfer for industrial and agricultural spray applications. Key Features: Replacement Pump 16X423