BB-4® High-Pressure Fire Pump — a portable centrifugal unit trusted by forestry agencies for over 40 years. Used in direct attack, slip-ons, relay pumping, and other high-demand wildland applications. Compatible with Type 6 brush trucks.

Interchangeable Pump Head & Compatibility

• Quick-release clamp, MARK-3® compatible pump end — reduces spare inventory and allows field swap-outs.

Seals, Bearings & Drive Assembly

• Blister resistant rotary mechanical seal for extended pump-end life.
• Sealed bearing design — no pump-end greasing in the field.
• Low-maintenance drive assembly.

Materials & Corrosion Resistance

• Aluminum alloy pump components with anodized surfaces.
• Corrosion-resistant parts chosen for longevity in wildfire environments.

Engine & Priming Options

• Multiple engine types available depending on model (specify for your unit: B&S, Kohler, Honda, etc.).
• Choice of manual, electric, or exhaust priming (model-dependent).

Features & Mounting Options

• Portable or vehicle-mounted configurations.
• Horizontal or vertical drive orientation.
• Available with engine-mount control panel, fuel tank, exhaust primer, and FastWire for vehicle-mount units.
• EPA certified.

Applications

• Direct wildfire attack.
• Relay pumping over long distances or rugged terrain.
• Slip-on tanker units.
• High-elevation operations.
• Parallel pumping for higher volume demands.