Peterbilt 2006 Caterpillar engine 13 speed transmission Heavy duty 20,000Lbs front axle 40,000 rears spring suspension Reyco 4000 gallons new steel USFS Baffled tank 2 1/2  tool boxes on the fenders, 1 1/2 inch fire outlets , pump 800GPM 75PSI 2 front sprayers 2 side cannons and 2 rear sprayers air controlled from the interior of the cab 6 switch box, draft system 3 inch to suck water from pond 6 inch gravity dump on tank!