Performance Specifications

Portable Pressure Washer Familiarization and Troubleshooting Guide Section 6 • Medium Frame Pump

MEDIUM FRAME PUMP

This section describes the medium frame pump assemblies powered by gasoline engines. This medium frame pump may also be referred to as ‘GPW-FH’ or ‘flat head’ pumps. The medium frame pump has the following features: • 1800 to 2250 PSI water pressure • 2.0 to 2.5 Gallons per minute flow • Axial Cam Design • Ceramic Pistons • Easy Start Unloader • Adjustable Output Water Pressure • Chemical Injection System available • Thermal Bypass Valve available • Oil Bath Drive System • Vertical and Horizontal Engine Mount

Part 1 - Specifications and Views

This section presents the performance specifications for Generac Portable Products® medium frame pumps. Also presented are sectional and exploded views of this type of pump assembly. A table listing torque specifications may be found on the exploded view page.

Performance Specifications ‡ Pump assemblies are listed by part number and were current at time of publication. Other pump assemblies will be added as our product line evolves. + Rated Pressure is given in pounds per square inch. * Flow Rate is given in gallons per minute.

Pump Rated Flow Unit Engine Pump Head Piston Oil Type/ Assembly Pressure+ Rate* Style Shaft Material Capacity Part No.‡

A1803 2250 2.222 Horizontal Straight Aluminum Ceramic 80w90 280ml A1803A 2000 2.0 Vertical Straight Aluminum Ceramic 80w90 305ml A1803C 2200 2.2 Vertical Straight Aluminum Ceramic 80w90 305ml A1803C 2200 2.2 Horizontal Straight Aluminum Ceramic 80w90 280ml B3166 2250 2.222 Horizontal Straight Aluminum Ceramic 80w90 280ml B3166A 2000 2.0 Vertical Straight Aluminum Ceramic 80w90 305ml B3166C 2000 2.2 Vertical Straight Aluminum Ceramic 80w90 305ml B3166C 2000 2.2 Horizontal Straight Aluminum Ceramic 80w90 280ml B3358 2250 2.222 Vertical Straight Aluminum Ceramic 80w90 305ml B3358 2250 2.5 Horizontal Straight Aluminum Ceramic 80w90 280ml B3358A 2000 2.0 Vertical Straight Aluminum Ceramic 80w90 305ml B3358C 2200 2.2 Vertical Straight Aluminum Ceramic 80w90 305ml B3358D 2000 2.2 Horizontal Straight Aluminum Ceramic 80w90 280ml