DUS 210/250 (FT4)
The FT4 DUS-210/250 is a high-output Tier 4 Final diesel engine-driven rotary screw compressor producing 210 or 250 CFM of continuous compressed air. Built for the most demanding standalone applications — vacuum excavation, municipal water & sewer, paint striping, and large-bore pneumatic tools — where both high CFM and EPA Tier 4 Final emissions compliance are required. Available in two output configurations to match your specific air demand.
The BOSS Final Tier 4 Diesel Utility Skid is based on the success of its predecessor, the iT4 DUS. This unit incorporates a proven Final Tier4 74 HP diesel engine mated to a skid mounted air compressor. Strong, durable,p and now with a full digital control system – The BOSS B-CAN!
This controller allows for a full system integration featuring all the typical safety shutdowns such as: Engine High Coolant Temperature, Engine Oil Pressure, High Compressor Pressure, and Compressor Discharge Temperature, all at your finger tips!
Typically, this BOSS application is mounted to the customers’ vehicle for various tasks such as paint striping, vacuum systems, and air tools. It can be tied into the truck fuel system or have a separate fuel tank for operation.
Standards
- Compact Design with Strong Perimeter Frame
- Heavy Duty Compressor Drive Coupling
- Remote Fluid Drains
- Routine Service is Accessed on End of Unit
- Two-Stage Air Filters and Restriction Indicators
- Control System Utilizes Our B-CAN Full Digital Controller Featuring zll our typical shutdowns PLUS:
- Compressor Air Pressure
- Engine RPM
- Hour meter
- Oil Life
- Compressor Service Intervals
- Manual or Automatic Re-Gen Cycles and more!
- Engine Auxiliary Drive SAE “A” or SAE “B” (Standard)
- WYE Valve 1″ to (2) ¾” Discharge Valves
- 0-100% Capacity Control
- Corrosion Resistant Enclosure
- Lifetime Warranty Available when utilizing our ShieldWorks Lubrication Program

