Specifications

be 0.13 inch thick; the rear wall and raised roof skins shall be 0.09 inch thick; the front cab structure
shall be 0.19 inch thick.
The exterior width of the cab shall be 94.00 inches wide with a minimum interior width of 88.00 inches.
The overall cab length shall be 131.10 inches with 54.00 inches from the centerline of the front of the
axle to the back of the cab.
The cab interior shall be designed to afford the maximum usable interior space and attention to
ergonomics with hip and legroom while seated which exceeds industry standards. The crew cab floor
shall be flat across the entire walking area for ease of movement inside the cab.
The cab shall offer an interior height of 57.50 inches from the front floor to the headliner in the
non-raised roof area and a rear floor to headliner height of 65.00 inches in the raised roof area, at a
minimum. The cab shall offer an interior measurement at the floor level from the rear of the engine
tunnel to the rear wall of the cab of 49.88 inches. All interior measurements shall include the area within
the interior trimmed surfaces and not to any unfinished surface.
The cab shall include a driver and officer area with two (2) cab doors large enough for personnel in
full firefighting gear. The front doors shall offer a clear opening of 40.25 inches wide X 53.50 inches
high, from the cab floor to the top of the door opening. The cab shall also include a crew area with up
to two (2) cab doors, also large enough for personnel in full firefighting gear. The rear doors shall
offer a clear opening of 32.25 inches wide X 61.00 inches high, from the cab floor to the top of the
door opening.
The cab shall incorporate a progressive two (2) step configuration from the ground to the cab floor at
each door opening. The progressive steps are vertically staggered and extend the full width of each step
well allowing personnel in full firefighting gear to enter and exit the cab easily and safely.
The first step for the driver and officer area shall measure approximately 11.50 inches deep X 31.50
inches wide. The intermediate step shall measure approximately 8.50 inches deep X 33.00 inches wide.
The height from the first step to the intermediate step and the intermediate step to the cab floor shall not
exceed 11.00 inches.
The first step for the crew area shall measure approximately 11.50 inches deep X 21.50 inches wide.
The intermediate step shall measure approximately 10.25 inches deep X 22.50 inches wide. The height
from the first step to the intermediate step and the intermediate step to the cab floor shall not exceed
12.50 inches.
CAB FRONT FASCIA
The front cab fascia shall be constructed of 5052-H32 Marine Grade, 0.13 of an inch thick aluminum
plate which shall be an integral part of the cab. The fascia shall be Sirius II styled, offering an
aerodynamic look for a stylish appearance. The cab fascia shall encompass the front of the aluminum
cab structure from the bottom of the windshield to the lower section of the cab.
The Sirius II style cab fascia shall include provisions for headlights, turn signals and warning light
assemblies designed to permit easy access for maintenance. The fascia shall include additional intake