

The Graco 17H831 Endurance Pump is a durable Chromex® pump lower designed for long-lasting performance on large coating projects. Perfect replacement for Mark X Standard sprayers (2019 and newer).
The Graco 17H831 Endurance Pump (Endurance Chromex® pump lower) is a heavy-duty replacement displacement pump engineered for long service life and quick, on-site maintenance. Built with a Chromex-treated rod and hardened stainless cylinder, it’s designed to handle high-production coating jobs while reducing downtime and total cost of ownership.
| Part Number | 17H831 |
|---|---|
| Pump Family | Endurance / Endurance Chromex pump lower |
| Max Working Pressure* | Up to ~3,300 psi (228 bar) |
| Fluid Outlet | 1/2" NPT (F) |
| Fluid Inlet | 1 5/16" UN (M) |
| Primary Materials | Chromex-treated rod, hardened stainless cylinder |
| Typical Coatings | Primers, acrylics/latex, elastomerics, block fillers (per machine rating) |