GRACO 17E827 – GMAX II 3900 Standard Series Gas Airless Sprayer Hi-Boy

GRACO 17E827 – GMAX II 3900 Standard Series Gas Airless Sprayer Hi-Boy

GMAX II 3900 Standard Series Gas Airless Sprayer delivers everyday reliability with unmatched durability and performance. Features the most reliable Endurance Chromex Piston Pump that lasts 3X longer than the next leading brand, easy maintenance with QuikAccess intake foot valve, and consistent spray fan and pressure control with SmartControl technology for handling the widest range of tip sizes, longer hose lengths, and heavier coatings with ease.

Producing 65% more performance than the GMAX 3400, the GMAX II 3900 has the power and flow to handle up to two guns and is ideal for the professional contractor who sprays a wide variety of coatings.

Everyday Reliability. Graco GMAX Standard Series gas-powered airless paint sprayers deliver unmatched durability and performance, with the capability to handle the widest range of tip sizes, longer hose lengths and heavier coatings with ease.

Endurance Chromex Piston Pump

The most reliable pump

Lasts 2X longer than the next leading brand

Repack the pump in minutes with the new QuikPak Cartridge System

QuikChange pump design allows you to swap the pump easily on the job

Faster cleaning with the QuikAccess intake foot valve

SmartControl 3.0

Consistent spray fan & pressure control

Handles the widest range of coatings with the most consistent fan pattern

Lowest dead band at any pressure

Precision Advantage Drive

The longest lasting drive

Hardened steel gears provide extremely quiet operation

Lifetime Warranty

Easy Out Pump Filter

Easy maintenance & less clogging

Exclusive inside-out filtering won’t collapse to ensure a quality finish

Vertical design for less mess

Heavy-Duty Prime Valve

Maintenance-free design withstands high-pressure dumping

Durable Cart Design

Rugged and easy-to-maneuver

Thick chrome over steel and pneumatic wheels for tough jobsite conditions

Retractable handle doubles as coiled hose storage

Honda® Engine

Reliable, powerful & easy-to-start

Oil Alert shuts down engine to prevent damage if oil level drops too low

Contractor Preferred

Contractor PC Spray Gun

All-day comfort & control

Lightest weight gun in its class

Up to 50% lighter trigger pull force

E-Z Fit adjustable trigger length

Complete gun rebuild in seconds with ProConnect cartridge

More info: graco.com/ContractorPC

Jobsite Ready

Includes RAC X SwitchTip and 50 ft of BlueMax II hose

Additional Specifications

Flow Rate: 1.6 GPM

Material: Chrome over steel frame with pneumatic wheels

Pump Life: 3X longer than leading brand

Configuration: Standard Series

Maximum Tip Size: 0.045

Engine Hp: Honda 390 (13.0) / Kohler 277 (9.2)

Control: SmartControl

Weight: 139 lbs

Gun Support: 0.045, 0.029, 0.023

Engine: Honda GX

Convertible	Non-Convertible
Engine Brand	Honda
Engine Size (HP)	4
Features	Endurance Chromex Pump, SmartControl 3.0, Honda Engine, Advantage Drive, Easy Out Filter, Heavy-Duty Prime Valve, Contractor PC Gun
Fluid Inlet Size (in)	1-5/16
Fluid Inlet Thread Type	UN-2A
Fluid Outlet Size (in)	1/4
Fluid Outlet Thread Type	NPSM
Frame Configuration	Hi-Boy
Hose Inlet Diameter (in)	1/4
Includes	Contractor PC Gun, RAC X LTX 517 Spray Tip, RAC X Guard, 1/4 in x 50 ft BlueMax II Airless Hose, TSL 4 oz
Inlet Paint Strainer	8 Mesh Stainless Steel Screen
Maximum Flow Rate (GPM)	1.25
Maximum Sound Pressure Level (dB(A))	96
Maximum Tip Size (in)	0.036
Maximum Tip Size 1 Gun (in)	0.036
Maximum Tip Size 2 Guns (in)	0.023
Maximum Working Pressure (MPa)	22.8
Maximum Working Pressure (psi)	3300
Model	GMAX II
Number of Guns	2
Outlet Paint Filter	60 Mesh Stainless Steel Screen
Overall Height (in)	40.8
Overall Length (in)	38.3
Overall Width (in)	22.3
Power Rating (HP)	4.0
Power Rating (W)	2982.8
Power Rating (kW)	2.98
Power Source	Gas
Pressure Control Type	SmartControl 3.0
Pump Mount Type	QuikChange
Pump Rod Type	Chromex
Pump Sleeve Material	Stainless Steel
Pump Type	Endurance
Recommended Annual Usage	Up to 500 gallons per week
Series	3900
Type	Airless Sprayer
Weight (lb)	106
Wetted Material	Acetal, Aluminum, Chrome Plating, Fluoroelastomer, Leather, Nylon, PTFE, Polyurethane, Stainless Steel, Tungsten Carbide, UHMWPE, Zinc-Plated Carbon Steel, Nickel-Plated Carbon Steel
Convertible	Non-Convertible
Engine Brand	Honda
Engine Size (HP)	4
Features	Endurance Chromex Pump, SmartControl 3.0, Honda Engine, Advantage Drive, Easy Out Filter, Heavy-Duty Prime Valve, Contractor PC Gun
Fluid Inlet Size (cm)	3.334
Fluid Inlet Size (mm)	33.34
Fluid Inlet Thread Type	UN-2A
Fluid Outlet Size (cm)	0.635
Fluid Outlet Size (mm)	6.35
Fluid Outlet Thread Type	NPSM
Frame Configuration	Hi-Boy
Hose Inlet Diameter (cm)	0.635
Hose Inlet Diameter (mm)	6.35
Includes	Contractor PC Gun, RAC X LTX 517 Spray Tip, RAC X Guard, 1/4 in x 50 ft BlueMax II Airless Hose, TSL 4 oz
Inlet Paint Strainer	8 Mesh Stainless Steel Screen
Maximum Flow Rate (L/min)	4.73
Maximum Sound Pressure Level (dB(A))	96
Maximum Tip Size (cm)	0.09144
Maximum Tip Size (mm)	0.9144
Maximum Tip Size 1 Gun (cm)	0.09144
Maximum Tip Size 1 Gun (mm)	0.9144
Maximum Tip Size 2 Guns (cm)	0.05842
Maximum Tip Size 2 Guns (mm)	0.5842
Maximum Working Pressure (MPa)	22.8
Maximum Working Pressure (bar)	228
Maximum Working Pressure (kPa)	22800
Model	GMAX II
Number of Guns	2
Outlet Paint Filter	60 Mesh Stainless Steel Screen
Overall Height (cm)	103.6
Overall Height (mm)	1036
Overall Length (cm)	97.3
Overall Length (mm)	973
Overall Width (cm)	56.6
Overall Width (mm)	566
Power Rating (HP)	4.0
Power Rating (W)	2982.8
Power Rating (cc)	120
Power Rating (kW)	2.98
Power Source	Gas
Pressure Control Type	SmartControl 3.0
Pump Mount Type	QuikChange
Pump Rod Type	Chromex
Pump Sleeve Material	Stainless Steel
Pump Type	Endurance
Recommended Annual Usage	Up to 500 gallons per week
Series	3900
Type	Airless Sprayer
Weight (kg)	48
Wetted Material	Acetal, Aluminum, Chrome Plating, Fluoroelastomer, Leather, Nylon, PTFE, Polyurethane, Stainless Steel, Tungsten Carbide, UHMWPE, Zinc-Plated Carbon Steel, Nickel-Plated Carbon Steel

Features

Most reliable Endurance Chromex Piston Pump – lasts 3X longer

Easy maintenance & less clogging with Easy Out Pump Filter

Consistent spray fan and pressure control with SmartControl

Maintenance-free high-pressure during with Heavy-Duty Prime Valve

Rugged and easy to maneuver with durable cart design

All-day comfort & control with Contractor PC Gun and RAC X LP SwitchTip

Applications

Everyday painting and coating applications

Wide range of tip sizes and coating types

Longer hose length applications

Heavy coating applications

Professional contractor applications

Commercial painting projects

Compatible Equipment

Contractor PC Gun

Blue Max II Hose

Honda engines

RAC X LP 517 SwitchTip

3/8 in x 50 ft hose

Related Parts

17E825 – GMAX II 3400 Standard

17E831 – GMAX II 5900 Standard

17E836 – GMAX II 7900 Standard

17E826 – GMAX II 3900 Lo-Boy

17E829 – GMAX II 5900 Lo-Boy

17E834 – GMAX II 7900 Lo-Boy

17E826 – GMAX II 3900 Standard

17E829 – GMAX II 3900 Lo-Boy

17E832 – GMAX II 5900 ProContractor

17E833 – GMAX II 5900 Ironman

Part of the GMAX II Standard Series family designed for everyday reliability. Includes GRACO’s Endurance MaxLife Piston Pump technology. Part of the GMAX II series gas airless sprayer family. ProContractor model offers enhanced features over standard models including LED display and advanced monitoring capabilities. Part of the GMAX II Standard Series lineup with Honda engine option. Kohler CommandPro engine version also available as 17E827K.

Reference Manuals

344383 (Page 6) Gas Airless Sprayers

3J0288EN – A (Page 2)

3A6400 (Page 1) GMAX 3400, GMAX II 3900/5900/7900, and TexSpray 5900HD/7900HD Airless Sprayers

3A6417 (Page 1) GMAX 3400, GMAX II 3900/5900/7900, and TexSpray 5900HD/7900HD Airless Sprayers, Parts