WATERAX STRIKER® SERIES
High-pressure 2-stage and 3-stage fire pumps delivering up to 345 PSI and 105 GPM. Built for slip-on units, long hose lays, and demanding wildland firefighting operations.
High-Pressure Performance for Demanding Applications
The WATERAX STRIKER® series pairs reliable Honda GX390 or Briggs & Stratton Vanguard 4-stroke engines with WATERAX's proven multi-stage pump ends to deliver the pressure and flow required for professional wildland firefighting operations.
Available in 2-stage (STRIKER-II) and 3-stage (STRIKER-3/ULTRASTRIKER) configurations, these pumps excel in applications requiring high pressure for long hose lays, elevated terrain, and direct attack firefighting. The innovative quick-release clamp system allows field replacement of pump ends in minutes, minimizing downtime during critical operations.
STRIKER pumps share common parts with the legendary MARK-3® and BB-4® pumps, ensuring parts availability and familiar maintenance procedures for crews already equipped with WATERAX equipment.
Key Features
Quick-Release Pump End
The WATERAX quick-release clamp allows you to swap pump ends in the field without tools, minimizing downtime and reducing spare parts inventory. Replace a damaged pump end in minutes.
Maintenance-Free Bearings
Sealed bearings eliminate the need for pump end greasing in the field. Combined with the blister-resistant mechanical rotary seal, STRIKER pumps deliver extended service life.
Belt Drive System
Reliable timing belt and pulley system with 1.88:1 speed increaser provides consistent power transfer. Low-maintenance design proven over 40+ years of field use.
Blister-Resistant Rotary Seal
Unique mechanical rotary seal resists blistering for extended pump end life. Built to handle the heat of sustained operations.
Choose Your STRIKER Model
The STRIKER series offers two pump end options: the 2-stage STRIKER-II for balanced pressure and flow, and the 3-stage STRIKER-3 (ULTRASTRIKER) for maximum pressure applications. Both are available in portable and vehicle-mount configurations.
STRIKER-II (2-Stage)
STRIKER-II Performance
Maximum Pressure: 230 PSI (15.9 BAR)
Maximum Flow: 105 GPM (397 L/min)
Maximum Head: 531 ft (162 m)
Pump Type: 2-stage centrifugal
STRIKER-II Flow at Pressure
At 100 PSI: 97 GPM (367 L/min)
At 150 PSI: 80 GPM (303 L/min)
At 200 PSI: 58 GPM (220 L/min)
STRIKER-II Configurations
STR2-13P: Portable with carry frame
STR2-13V: Vehicle mount with base
STR2-13VS: Slip mount with hand primer & check valve
Weight: 127-139 lbs depending on configuration
STRIKER-3 / ULTRASTRIKER (3-Stage)
STRIKER-3 Performance
Maximum Pressure: 345 PSI (23.8 BAR)
Maximum Flow: 102 GPM (386 L/min)
Maximum Head: 797 ft (243 m)
Pump Type: 3-stage centrifugal
STRIKER-3 Flow at Pressure
At 100 PSI: 87 GPM (329 L/min)
At 150 PSI: 75 GPM (284 L/min)
At 250 PSI: 40 GPM (151 L/min)
STRIKER-3 Configurations
STR3-13P: Portable (ULTRASTRIKER)
STR3-13V: Vehicle mount (ULTRA-SLIP)
STR3-13S: Snowmaking configuration (ULTRASNOW)
Weight: 129-137 lbs depending on configuration
Common Specifications
Both STRIKER-II and STRIKER-3 share these specifications.
Engine Options
Honda GX390 Engine
Displacement: 389 cc
Power Output: 13 HP (9.7 kW) @ 3600 RPM
Max Torque: 19.5 lb-ft @ 2500 RPM
Engine Type: 4-stroke, OHV, single cylinder
Starting: 12V electric with recoil backup
Briggs & Stratton Vanguard (Optional)
Model: Vanguard 400 Series
Power Output: 11.7 HP (8.7 kW) @ 3600 RPM
Max Torque: 19.5 lb-ft @ 2500 RPM
Engine Type: 4-stroke, OHV, single cylinder
Starting: 12V electric with recoil backup
Fuel & Compliance
Fuel Tank: Integral 1.6 US gal (6.1 L)
Fuel Type: Unleaded gasoline, 86+ octane
Emissions: CARB & EPA certified
Spark Arrestor: USFS approved
Connections & Controls
Pump Connections
Intake: 2" Male NPSH
Discharge: 1-1/2" Male NPSH
Discharge Gauge: 0-600 PSI, 2.5" dial
Check Valve: 1-1/2" NPSH manifold
Priming Options
Hand Primer: Guzzler-type with 12 ft lift capability (16 ft with foot valve)
Electric Primer: 12VDC piston-type vacuum pump (optional)
Priming Valve: Located below discharge check valve
Control Options
FastWire: 3 ft control cable with 8-pin connector (standard)
Control Panels: MCP, PMSCP, WCP, XCP series compatible
Features: On/Off toggle, push-button start, low oil warning, throttle control
Applications
STRIKER pumps deliver the pressure and flow needed for professional wildland firefighting and industrial applications where reliability is critical.
Slip-On Units
Vehicle-mount configurations with industrial isolators and FastWire connectors are purpose-built for Type 4, 5, 6, and 7 wildland engines. Integrates with WATERAX control panels for complete operator control.
Long Hose Lays
High pressure output enables water delivery over extended distances. The STRIKER-3's 345 PSI capability and 797 ft maximum head handles demanding elevation changes and friction loss
Tandem & Parallel Pumping
Use multiple STRIKER pumps in series to boost pressure, or in parallel to increase flow. The 2" NPSH intake and interchangeable pump ends simplify multi-pump configurations.
Snowmaking & Ice Bridges
The STRIKER-3 ULTRASNOW configuration delivers the pressure required for snowmaking guns. Used extensively in oilfield and logging operations for river and stream crossings.
Documents & Resources
STRIKER-II Data Sheet
Official WATERAX STRIKER-II specifications, performance curves, and technical drawings.
STRIKER-3 Data Sheet
Official WATERAX STRIKER-3/ULTRASTRIKER specifications, performance curves, and technical drawings.
Quick Guide
Fast reference for setup, priming, operation, and basic troubleshooting for STRIKER-II and STRIKER-3 pumps.
Owner's Manual
Complete operating instructions, maintenance procedures, parts breakdown, and safety guidelines.
Shop Parts
Genuine WATERAX replacement parts ensure your pump delivers reliable performance season after season. From pump bodies and impellers to suction covers, mechanical seals, and shaft assemblies—we stock the components you need to maintain and service your pump.