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      • High-Pressure Triplex Plunger Pump K45000-3G
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  • Pumps
    • American Made Pumps
    • Bentonite Pumps
    • CO2 Pumps
    • Corrosion-Resistant Pumps
    • GP Series
    • GX Series
    • High Temperature Pumps
    • LP Pumps
    • Machine Tool Pumps
    • MP Series
    • P200 Series Pumps
    • P300 Series Pumps
    • P400 Series Pumps
    • P46/P47/P48/P49 Pumps
    • P500 Series Pumps
    • P54/P58/P59 Pumps
    • P55/P56 Pumps
    • P57 Pump
    • SP Pumps
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  • Accessories
    • Accumulators/Pulsation Dampeners
    • Chemical Injectors
    • Couplers
    • Electric Clutch
    • Filters
    • Flow Actuated Unloaders
    • Gearboxes
    • Hydraulic Kits
    • Kamat Accessories
      • View All Kamat Accessories
      • Guns, Lances and Foot Valves
      • High Pressure Nozzles
      • High-Pressure Filters
      • High-Pressure Valves
      • Miscellaneous
      • Rotating Leadthroughs
      • Surface Cleaners
      • Tank Cleaning
    • Lances
    • Lovejoy Coupler Sets
    • Pressure Gauges
    • Pressure Regulators
    • Pressure Relief Valves/Pop-Off Valves
    • Pressure Switches
    • Pressure-Actuated Unloaders
    • Pulsator Valves
    • Pump Oil
    • Pump Safety Devices
    • Rotating Nozzles
    • Sandblasting system
    • Shut Off Guns
    • Thermal Relief Valves
    • Turbo Nozzles
    • Valve Lifters
  • Kamat
    • High Pressure Units
      • Overview High Pressure Units
      • Mobile High-Pressure Unit KamJet
      • Diesel High-Pressure Units
      • Electric High-Pressure Unit
    • High Pressure Valves
      • Overview High Pressure Valves
      • Safety Valves
      • Pressure Limiting Valves
      • Control Valves
      • Unloader Valves
      • Foot Valves
    • High Pressure Jetting Tools
      • Overview High Pressure Jetting Tools
      • High Pressure Surface Cleaner
        • Overview High Pressure Surface Cleaner
        • Surface Cleaner 1000/1500
        • Surface Cleaner 3000 Air
        • Wall Cleaner 3000 Air
        • Surface Cleaner Gekko 350
      • High Pressure Pipe Cleaning
        • Overview High Pressure Pipe Cleaning
        • High-Pressure Pipe Cleaner Tornado
      • High Pressure Guns and Lances
        • Overview High Pressure Guns and Lances
        • High Pressure Jetting Gun KSP
        • High Pressure Jetting DumpGun1500/DumpGun3000
        • High-Pressure Jetting Lance RotoLance
    • High Pressure Nozzles
      • Overview High Pressure Nozzles
      • Rotating Nozzles
        • Overview Rotating Nozzles
        • Rotating Nozzle PRD 3500 LV
        • Rotating Nozzle PRD 3500 Air
      • Rotating Nozzle PRD 3500 LV
      • Rotating Nozzle PRD 3500 Air
      • Well Cleaning Nozzle
    • High Pressure Plunger Pumps
      • Overview High Pressure Plunger Pumps
      • High-Pressure Triplex Plunger Pump K100-3
      • High-Pressure Triplex Plunger Pump K4500-3
      • High-Pressure Triplex Plunger Pump K8000-3G
      • High-Pressure Triplex Plunger Pump K9000-3G
      • High-Pressure Triplex Plunger Pump K11000-3G
      • High-Pressure Triplex Plunger Pump K18000-3G
      • High-Pressure Triplex Plunger Pump K25000-3G
      • High-Pressure Triplex Plunger Pump K45000-3G
      • High-Pressure Quintuplex Plunger Pump K55000-5G
      • High-Pressure Quintuplex Plunger Pump K100000-5G
      • High-Pressure Quintuplex Plunger Pump K150000-5G
    • High Pressure Filters
    • Rotating Joints
    • Customer Specific High-Pressure Solutions
  • Custom Solutions
    • Electric
    • Gasoline
    • Diesel
    • Hydraulic
  • Towels
  • Applications
    • Boiler Feed
    • Car Wash
    • Carpet Cleaning
    • Deburring
    • Desalination/Reverse Osmosis
    • Directional Drilling
    • Fire Suppression
    • High-Pressure Coolant
    • Industrial
    • Mining
    • Misting/Humidification/Odor Control
    • Oil Field/Brine/Salt Water Disposal
    • Paint Removal/Cleaning
    • Pressure Washer
    • Sewer Cleaning
    • Water Hydraulics
    • Water Jetting
  • Resources
    • Download Catalog
    • Warranty Information
    • Direct Drive Mounting
    • Nozzle Calculator
    • Product Registration
    • Pulley Sizes
    • Pump Mounting
    • Pump Selection Guide
    • System Troubleshooting
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  • About
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Technical Bulletins

From time-to-time, Giant issues special notices to help with any changes or improvements to pumps and accessories. These bulletins are labeled by major topic and by issue date.

File Name Date
Anti-Seize for Hollow Shaft Pumps Technical Memo 12/17/2020
Change to Oil Cooler for GP7500/GP7600 Series Pumps 08/20/2024
Hollow Shaft Hydraulic Drive Speed Sensors 03/29/2021
L-Jaw Coupler Information 04/20/2023
LP Series Pump Improvement Technical Bulletin 05/12/2010
New Seat Design – GX Unloader – Technical Bulletin 05/11/2023
Oil Level Identification – LP Series Pumps – Technical Bulletin 08/30/2010
P400 Oil Filler Plugs-Technical Bulletin 09/22/2008
P400 Series Models Oil Seals Technical Bulletin 05/15/2008
P400-New Manifold-Seal Case Technical Bulletin 07/21/2009
P455 Changes and P400 Series Oil Seal Design Changes 07/21/2009
P54, P58 and P59 Crossheads-Technical Bulletin 03/23/2017
P54-P59 Mounting Bolt Kit Technical Bulletin 11/30/2020
Pump Identification-Shaft ID’s-Technical Bulletin 12/02/2008
Pump Sound Levels-Technical Bulletin 10/02/2008
Shaft Protectors-Technical Bulletin 02/28/2006
Unloader-Regulator Conversion-Technical Bulletin 02/23/2007

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For 50 years, Giant Pumps has offered the most dependable positive displacement high-pressure triplex pumps available. Designed and built to the highest quality standards, customers count on Giant Pumps products to keep their equipment running. Every design detail of Giant Pumps products is optimized for long-life and reliable performance, making Giant Pumps the most trusted name in high-pressure pumps and systems.

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900 N. Westwood Ave
Toledo , Ohio 43607

(419) 531-4600

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