The Leader in Alternative Fuels School Buses - Electric, Propane, Gas and CNG

2021 KSIR Super Pro F-550 Cutaway

2021 KSIR Super Pro F-550 Cutaway

More Passenger Capacity than E– Series Buses with a GVWR of 19,500; up to 35 passengers in addition to the Driver and Copilot.

The KSIR Super Pro F-550 is rated as the quietest ,best riding bus of all the buses in the F550 category. This is due to our custom, hand built construction featuring Galvaneal steel exclusively including the body cage, subfloor, roof trusses, and even the step wells. Thicker Frameless windows and R45 density block insulation in the walls effectively block out road noise while keeping the passengers cool in the summer and warm in the winter. The optional Sumo front and rear suspension provide excellent stability in cross winds, reduces body lean in cornering and exit ramps. It also greatly reduces “nose dive’ during heavy braking. Our exclusive tapered rear frame rails allow the bus to enter steep drives without bottoming out unlike competitive brands.

The rear A/C unit is mounted in the front bulkhead, and directs air down the ceiling to ensure an even flow of cold air throughout the bus eliminating drafts on the forward passengers. All the A/C components are mounted behind an attractive padded panel; only the vents are visible. Inside this enclosure the evaporator is surrounded by heavy insulation which increases the efficiency of the A/C but also quiets the noise of the A/C unit.

The Available Diesel Engine gives an affordable alternative for those customers who want a Diesel engine, but don’t want to invest in a much larger and heavier bus.

Standard Features:

  • All Galvaneal steel throughout including steps.
  • Full body white paint with clear coat at N/C. Other colors available
  • Seamless full height Fiberglas Walls; no separate skirts
  • Frameless Windows
  • Front & Rear Caps
  • One piece Fiberglas roof
  • Upgraded Alternator
  • Extra Wide mirrors; power and heated
  • Power window and door locks
  • Altro flooring
  • HB Ford OEM Driver and Copilot seats in gray cloth
  • OEM Ford Radio
  • Ford F-550, 19,500 lb. GVWR
  • LED Interior and Exterior lights
  • 78 inch Interior headroom
  • R45 Sidewall Insulation
  • Draft Free A/C

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