A winding highway takes a turnA winding highway takes a turn

On-Highway Drives VMaster® Direct Sensing Replacement (DSR) Fan Drives

VMaster Direct Sensing Replacment Fan Drive

VMaster® DSR (Direct-Sensing Replacement) viscous fan drives are drop-in replacements for a range of Volvo and Mack heavy-duty linehaul and vocational trucks.

These fan drives give Volvo and Mack fleet managers, vehicle owners and operators in the United States, Canada and Mexico new repair options. VMaster DSR viscous fan drives provide efficient cooling and respond quickly to engine cooling needs. VMaster DSR fan drives are plug-and-play replacements for original equipment fan drives.


  • Volvo & Mack heavy-duty trucks
  • Volvo & Mack vocational trucks

Features & Benefits

  • Drop-in simplicity offers easy replacement for wide range of Volvo and Mack heavy-duty linehaul and vocational trucks
  • Proven reliability
  • Plug-and-play design eases installation as replacements for OE fan drives
  • Three different sizes provide design flexibility with a wide range of slip conditions and fan speeds

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