• Quick release clamp and detachable pump end for minimal equipment downtime and inventory
  • Sealed bearing to eliminate pump end greasing in the field
  • Belt drive system for reliable, low maintenance performance
  • Aluminium alloy pump components and anodized parts for lighter weight and greater resistance to corrosion
  • Comprehensive user and service manuals
  • EPA Certified


The WATERAX BB-4-D902 pump pairs a reliable high performance 4-stage centrifugal pump end with a powerful Kubota D902-E4B 3-Cylinder Fuel Injected Liquid Cooled 25 HP Diesel Engine to achieve pressures of up to 395 PSI (27.2 bar) and flow rates reaching 106 GPM (401 L/Min). Strong enough to operate as a source pump for tandem and parallel pumping, it is also optimal for direct attack firefighting, remote watering, sprinkler systems, and is a popular choice for slip-on units.

The WATERAX quick release clamp provided on the BB-4® pump lets you replace a damaged pump end in the field with minimal equipment downtime. The 4-stage pump end on the BB-4® is identical to the pump end on the MARK-3®
unit, which greatly reduces your spare parts inventory and improves your ability to respond to unforeseen equipment damage.


  • Brush Trucks
  • Attack line firefighting
  • Long hose lay for remote watering during firefighting operations
  • High elevation firefighting in mountainous areas
  • High pressure provides accuracy in flow trajectory
  • Tandem pumping over long distances
  • Parallel pumping for higher volumes