A German-made reciprocating triplex plunger pump.

Spheroidal cast iron crankcase with sight glass and vented dipstick; forged, through-hardened, ground and polished crankshaft; bronze connecting rods; hardened stainless steel plunger bases; solid ceramic plungers; nitrile seals with fabric reinforcing; stainless steel valves and machined stainless steel manifold.

WARNING: This product might contain a chemical known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov

  • LP301AGB-180 Exploded View
  • LP301AGB-180 Parts List
  • Giant Industries Limited Warranty
  • LP301AGB-180 Installation Instructions
  • LP301AGB-180 Repair Instructions
  • Troubleshooting Guide


U.S. Metric
Max Flow (Continuous) 14.2 GPM 53.6 L/min
Max Discharge Pressure (Continuous) 4000 PSI 275 bar
Crankshaft Speed (Continuous) 1000 RPM
Input Speed (Continuous) 2000 RPM
Max Flow (Intermittent) 18 GPM 68.1 l/min
Max Discharge Pressure (Intermittent) 4000 PSI 275 bar
Crankshaft Speed (Intermittent) 1268 RPM
Input Speed (Intermittent) 2536 RPM
Inlet Pressure 145 PSI 10 bar
Plunger Diameter 0.95″ 24 mm
Stroke 1.65″ 42 mm
Max Temp 140 °F 60 °C
Crankcase Capacity 114 fl. oz. 3.6 L
Weight 172 lbs. 78 kg
Inlet Ports (2) 1-1/4″ BSP
Discharge Ports (2) 1″ BSP
Shaft Rotation Top of Pulley Towards Manifold
Shaft Mounting Either Side
NPSH Required 25.9 ft.-head 7.9 mWs
Key Component Material
Manifold Stainless Steel
Plungers Solid Ceramic Oxide
Valves Stainless Steel
Seals Nitrile With Fabric Reinforcing
Gear End Spheroidal Cast Iron

Click the image to enlarge


Contact Giant Industries for Information

Horsepower Requirements

The ratings shown are the power requirements for the pump. Gas engine power outputs must be approximately twice the pump power requirements shown above.

We recommend a 1.15 service factor be specified when selecting an electric motor as the power source. To compute specific pump horsepower requirements use the following formulas:
Electric HP = (GPM X PSI)/1450
Gas HP = (GPM X PSI)/1100

*Engine power varies based on horizontal or vertical orientation, as well as by makes and models from each manufacturer.


Plunger Packing Kit – Part #09459
36 13238 Leakage Seal 3
38 07140 O-Ring 3
38A 13241 Support Ring 3
39 12055 O-Ring 3
39A 07693 Support Ring 3
40 06083 V-Sleeve 6
40A 13366 Pressure Ring 3
Valve Assembly Kit – Part #09196
44A 07150 O-Ring 9
44B 06266 Support Ring 3
46A 07064 Valve Seat 3
46B 07063 Valve Plate 3
46C 07062-0100 Valve Spring 3
Valve Assembly Kit – Part #09196A
44A 07150 O-Ring 9
44B 06266 Support Ring 3
46A 07064 Valve Seat 6
46B 07063 Valve Plate 6
46C 07062-0100 Valve Spring 6
Oil Seal Kit – Part #09577
31 07133 Oil Seal 3

Repair Kits Available

The repair kits listed to the right are available for this pump. If you need further information about these repair kits, or have questions about other specific parts for your pump, please contact you local Giant distributor or contact Giant customer service.

Service & Repair

Giant provides service on each pump and accessory that we sell. Many basic repair procedures are covered in the Giant repair manual. For all other questions on service or repair needs please contact your local Giant distributor.