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BB-4 ® SERIES Portable Water Pump

The Wildfire model BB-4® portable fire pump is an ideal unit for high volume remote watering, brush truck and slip-on fire fighting systems in forestry and rural fire environments. High pressure up to 425 PSI (2930 kPa) is provided to operate very long hose lays and overcome pressure losses due to large elevation changes often encountered in rugged wildland fire operations. The higher power makes it ideal for pumping at high altitudes. A unique feature of the BB-4® pump is the quick release pump end that is inter-changeable with our Mark-3® pump. This standardization allows for in-field pump end exchanges eliminating long equipment down time and greatly reduces the inventory of parts at equipment service shops.


Engine Specifications

  • Engine Briggs & Stratton® Model Vanguard® 4-cycle, air-cooled Twin cylinder, overhead valve
  • Maximum power 23 HP (17.2 kW)
  • Starting system Electric with backup recoil starter
  • Ignition system Magnetron® electronic
  • Charging system 16 amp alternator
  • Stroke 2.75” (70 mm)
  • Bore 2.97” (75.5 mm)
  • Displacement 627 cc (38.2 cubic inches)
  • Lubrication Oil (full pressure)
  • Oil capacity 1.5 US quart (1.42 L) replaceable oil filter
  • Integral fuel tank 1.5 US gals (5.7 L) with valve for outside fuel source, 3-way valve



US Forest Service approved spark arrestor
• Electric starter, low oil protection
• Exhaust priming system
• Integral fuel tank
• Checkvalve (NH or NPSH)
• Powder coated extended steel carry frame
• Standard control panel, choke / throttle / on-off
• Pressure gauge 0-600 PSI (0-4200 kPa) GAUGE-1
• Foam solutions pumping capability
• Service manual MAN-BB4-E