EW4040 AAA 4400 PSI 4.0GPM REPLACEMENT PUMP

The EW4040 AAA High Pressure replacement pressure washer pump by the FNA Group is a 4400 PSI Max 4.0 GPM Industrial Triplex Plunger pump that was used on many different brands of pressure washer including Simpson, Delco, DeWalt, Cub Cadet, MTD and various other brands.

The recommended horse power engine is 9-13HP with 1 Inch Shaft to reach 4400 PSI Max Discharge Burst Pressure

Features of The EW4040 Pressure Washer Pump

• Fully Adjustable Unloader Valve from 500 PSI to 4400PSI max with 420CC Engine allowing the pump to be used on multiple engine application
• Built-in in Easy Start System for stress free starting.
• Built in Chemical Injector for on demand soap application.
• Pre-Installed Thermal Relief valve.
• Fully Anodized Die cast Aluminum Crankcase
• Ceramic Piston Coated or Long Life.
• Built in Chemical Injector for on demand soap application.
• Oversized Sight Glass and Advanced Seal Technology

EW4040 Pump Specifications

• Pressure Regulation from 500 PSI to 4400 PSI
• 4.0 GPM Volume
• SAE Gas Flange 1/2" FPT Inlet 3/8" MPT Outlet
• Female Garden Hose Inlet
• 3/8" Female Brass Quick Connect Fitting.
• J-609A Aluminum Engine Flange
• Horizontal Mounting Bracket with 1 Inch Hollow Shaft Triplex Plunger Pump.
• 12.4 oz oil capacity - 15W40 recommended

SERVICE NOTES

• A Maximum Pressure of 4400 PSI is achieved when the EW4040 pump is coupled with a 420CC Engine, smaller engines will produce a lower maximin running pressure.
• This pump is not intended to be used in hot water applications. Has a max temperature rating of 140 degrees F.
• Some of the 7112736, DW3635, series pumps were mislabeled from the factory and came labelled as 7109267, EW4040, series pumps. Please verify the correct pump before ordering any replacement parts.
• Some of the EW4040 pumps came equipped with an alternate unloader assembly. Refer to old/new style photos to help determine the correct replacement unloader.

Pump Replacement Information

The EW4040 AAA Pump by FNA Group can be used to replace the following partial list of pump numbers. The model number can usually be found on a sticker on the pump body.

• 9.6GA1C AAA Triplex Plunger Pump.
• 9.6GA15C AAA Triplex Plunger Pump.
• 7104820 AAA Triplex Plunger Pump.
• 7103574 TX1508A General Plunger Pump.
• Comet ZWD 4042G Honda Pressure Washer.
• Comet ZWD-K4042GVR Honda Pressure Washer.