GRACO 16X423 – Endurance MaxLife Piston Pump, 3300 PSI

GRACO 16X423 – Endurance MaxLife Piston Pump, 3300 PSI

Endurance MaxLife piston pump designed for GMAX II 7900 Standard Series airless paint sprayers. Features advanced MaxLife technology for extended pump life and reliable performance in demanding spray applications.

Genuine Graco Endurance Pumps lead the industry in durability and ease of installation. Keep a spare on hand to minimize downtime in the field.

Replacement pump for GMAX II 7900 Standard Series Hi-Boy sprayers model year 2019 and newer.

Lasts 2X longer than the next leading brand

Chromex rod and hardened stainless steel cylinder

Long Life V-Max Blue Packings

Faster cleaning with the QuikAccess intake valve

Repack the pump in minutes with the new QuikPak Cartridge System

Additional Specifications

Max Working Pressure: 3300 PSI (22.7 MPa, 227 bar) Maximum Working Pressure

Material: MaxLife construction materials

Series: Series A

Fluid Inlet Size (in)	1 5/16
Fluid Inlet Thread Gender	Male
Fluid Inlet Thread Type	UN
Fluid Outlet Size (in)	3/8
Fluid Outlet Thread Gender	Female
Fluid Outlet Thread Type	NPT
For Use With	GMAX II 7900 Standard Series Hi-Boy (2019 and newer)
Maximum Working Pressure (psi)	3300
Type	Replacement Pump

Features

MaxLife technology for extended pump life

Replacement pump for GMAX II series

Professional grade construction

Compatible with standard repair kits

Applications

Professional painting

Construction projects

High-volume spray applications

Commercial painting

Compatible Equipment

GMAX II 7900 Standard Series

TexSpray 7900HD Standard Series

Roof Rig

Related Parts

249123 – Standard repair kit

17H840 – QuikPak repair kit

16X414 – GMAX II 3900 Lo-Boy pump

16X419 – GMAX II 5900 Lo-Boy pump

16X425 – PUMP, displacement, 7900HD, includes 86

16Y598 – Endurance Chromex Piston Pump

16X428 – Gb Kit, Pump, Mark Iv, Standard, 3300 PSI

16Y706 – Endurance Chromex Piston Pump

16X429 – Mark V Std Pump Kit

16Y601 – Mark VII Std Pump Repair Kit, 3300 PSI

Kit Contents

This is a replacement pump assembly, not a repair kit. Standard kit 249123 and QuikPak kit 17H840 are available for maintenance. Part quantity is 1. This is a displacement pump model compatible with GMAX II 7900 equipment. Maximum working pressure of 3300 PSI applies to all models listed on this page.

Reference Manuals

300718 (Page 4) GMAX II (HD 3-in-1) Standard

344383 (Page 10) Gas Airless Sprayers

344386 (Page 12) Airless Accessories Brochure

344514 (Page 2) QuikPak Cartridge Repair System

332921 (Page 28) GMAX 3400, GMAX II 3900/5900/7900 and TexSpray 5900HD/7900HD Airless Sprayers