Performance Specifications

Portable Pressure Washer Familiarization and Troubleshooting Guide Section 7 • Large Frame Pump

LARGE FRAME PUMP

This section describes the large frame pump assemblies powered by gasoline or diesel engines intended for use in heavy duty applications. This large frame pump may also be referred to as a ‘GPW’ pump. Most of the information previously printed in publication 97492 will be found here. The large frame pump has the following features: • 1500 to 3000 PSI water pressure • 2.0 to 3.0 Gallons per minute flow • Axial Cam Design • QPQ, Stainless Steel, or Ceramic Pistons • Easy Start Unloader • Adjustable Output Water Pressure • Chemical Injection System available • Brass heads (above 2200psi) • Aluminum heads (2200psi and below) • Thermal Relief Valve • Oil Bath Drive System

Part 1 - Specifications and Views

This section presents the torque and performance specifications for Generac Portable Products® large frame pumps. Also presented are sectional and exploded views of this type of pump assembly.

Performance Specifications + Pressure (in pounds per square inch) is adjustable up to the unit's rated pressure. * Flow rate is given in gallons per minute. Pump assemblies are listed by part number and were current at time of publication. Other pump assemblies will become available as our product evolves.

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

21300A 2250 Straight Aluminum 2.2 Ceramic 80W90/300ml 21300B 2700 Straight Brass 2.5 Ceramic 80W90/285ml 21300D 2600 Tapered Brass 2.6 Ceramic 80W90/285ml 21300E 2900 Tapered Brass 2.9 Ceramic 80W90/285ml 95523A 1500 Straight Aluminum 2.0 Ceramic 80W90/285ml 95523B 1800 Straight Aluminum 2.3 Ceramic 80W90/285ml 95523C 1500 Straight Aluminum 3.0 Ceramic 80W90/285ml 95523D 1500 Straight Aluminum 2.0 Ceramic 80W90/285ml 95523E 2000 Tapered Brass 3.0 Ceramic 80W90/285ml 95523F 2200 Tapered Brass 3.0 Ceramic 80W90/285ml 95523G 2500 Tapered Brass 3.0 Ceramic 80W90/285ml 97239A 1600 Straight Aluminum 2.0 Ceramic 80W90/285ml 97239B 1900 Straight Aluminum 2.5 Ceramic 80W90/285ml 97239C 2600 Straight Brass 3.0 Ceramic 80W90/285ml 99750A 2500 Tapered Brass 3.0 Ceramic 80W90/285ml 99750G 3000 Tapered Brass 2.5 Ceramic 80W90/285ml