The O’Brien 3500 series is designed specifically for tough residential and commercial jobs. Its robust construction allows our customers to tow unit with full tank of water at highway speeds.
This series provides sufficient water supply without the loss of single axle maneuverability. It is also powerful enough to handle everyday work.
Water Tank350 gallon capacity polyethylene water tankPlate mounted with sump and side bafflesCrowned top and side stabilizers for added strengthSufficient water supply for rated flow
ReelHydraulic driven (excluding 3510 models)Variable speed controlTethered hand held remote
Triplex Pump10 GPM @ 2500 psi18 GPM @ 4000 psi40 GPM @ 2000 psi
Engine65 HP water cooled diesel engine (excluding 3510 models)Murphy safety gauges with automatic shutdown featureElectronic throttle control17 gallon fuel tank capacity
Trailer Construction4″ or 6″ steel channel frameA-frame hitch design2-5/16″ ball hitch or pintle eyeSingle 6,000 lb. or 7,000 lb. DOT rated axleElectric brakes500 lb. capacity fenders with anti-skid treatment
Thermoplastic Sewer HoseEasy to clean (leaves no bacteria causing residues)Maintains stiffness and is abrasion resistant
Other Standard ComponentsA-frame mounted toolboxPVC tank drain valve with stainless steel strainerAir purge system20′ x 3/8″ contrasting color leader hoseManual level wind for assistance in hose alignment
3500 SERIES MODELS3510-E3510-FC3518-SC3540-SC