The BB-4® portable high-pressure fire pump is ideal for remote water transfer, initial attack, sprinkler systems, brush truck and slip-on firefighting systems in forestry and rural fire environments.

High-pressure up to 440 PSI (30 bar) is provided to operate very long hose lays and overcome pressure losses due to large elevation changes often encountered in rugged wildland fire operations.

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.

Flow rate at specified pressure
Maximum Pressure: 440 PSI (30.3 bar)
Maximum Flow: 104 US gals/min (394 L/min)
Maximum Head: 1016' (310 m)
100 GPM (379 lpm) @ 150 PSI (10.3 BAR)
83 GPM (303 lpm) @ 250 PSI (17.2 BAR)
50 GPM (189 lpm) @ 350 PSI (24.1 BAR)
Model & Type: Briggs & Stratton Vanguard, 4-cycle, horizontal shaft, twin cylinder, OHV
Maximum Power: 18 hp (13.4 KW) @ 4000 RPM
Maximum Torque: 26.9 lb-ft (36.5 Nm) @ 2800 RPM
Starting System: Re-coil start with 12 VDC electric start option
Type: Detachable 4-Stage Centrifugal Pump
Intake: 2" Male NPSH
Discharge: 1-1/2" Male NPSH
Weight: 194 lbs (88 Kg)
Carry Frame
Drive Unit
Timing Belt and Pulley; Speed Increaser 1.88:1
Other specifications
Primer: Electric Package - Electric Primer, LED work light, & Battery (Standard)
Muffler: Exhaust primer muffler (Standard)
Fuel Tank: Integral / 1.75 US galls (6.6 L) (Standard)
Discharge Gauge: 0-600 psi, 2-1/2ʺ dial (Standard)
Controls: Engine Mount Control Panel (Standard)
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