Drawings or pictures may show non-standard equipment.

BOLLARD™ Sound Enclosures

Quiet ~ Cool ~ Efficient

  • Engineered, manufactured & assembled in the USA.
  • Proprietary sound foam tuned to the specific frequencies of John Deere 4045 engines, for high-frequency turbo whine and low-frequency combustion noise.
  • BOLLARD sound foam is 2x thicker than other enclosures!
  • Fully sealed connection points for maximum sound deadening.
  • Designed by service technicians, for service technicians.
  • Fully sealed and integrated clutched front power take-off option can accommodate any SAE B or C pad pump.
  • Two-part epoxy paint and marine powder coating finishes provide superior corrosion resistance and durability.


Designed and assembled inhouse,  Sound Enclosures BOLLARD™ are built to fit our 42kW, 65kW, 99kW and 104kW commercial marine generators. Built to fit simplifies the installation process.

The design completely isolates the generator & engine air intakes from the engine compartment ensuring only cool air drawn from outside of the enclosure is pulled in over the windings by the generator cooling fan. These seals prevent hot air from inside the engine compartment short cycling through the generator windings and increasing heat. Running cooler means less resistance in the windings, improved generator efficiency and better fuel consumption.

Our sound shields are the result of hundreds of hours of thoughtful design with an emphasis on equipment serviceability, functionality and system integration. Every connection point from fuel, to remote panels to block heaters to AC connection has been considered.

The BOLLARD™ Marine Generator Sound Enclosure is the only model available with an integrated clutched PTO option, allowing for quiet hydraulic pump operation. The fully sealed engine and generator air intake systems ensure the quietest, coolest, and most efficient generator operation possible.

Standard options include:

  • Oil level sight gauge and alarm with viewing port
  • Oil drain valve plumbed to the base frame
  • Coolant level switch gauge & alarm
  • 14” K&N air intake filter
  • Coolant expansion bottle
  • Closed crankcase ventilation system
  • Sealed connection points for fuel, oil, coolant or seawater
  • Lined with precise fit, CNC cut 50mm sound foam
  • 12 gauge, marine-grade aluminum panels
  • Laser-cut and formed steel base and frame
  • Two-part epoxy paint and marine powder coating finishes

Dimensions: 80L x 33W x 44H