Specifications include, but are not limited to: ENGINE: The engine shall be Cummins diesel fueled wet sleeve design with a minimum of 12.5 at 430hp, exhaust brake controlled from a dash mounted switch. The engine shall have a low oil pressure and high engine temperature engine shut down system. The engine must use an S.C.R. system to achieve compliance with E.P.A. 2019 emission standards. The fan will have a Horton two speed air operated clutch. The DEF tank shall be 11 gallons minimum of usable volume, located on LH side under cab. Exhaust must be RH under cab DPF/SCR w RH SOC vertical tailpipe. Shall have engine mount Powercore air cleaner w/constant torque SS clamps, pop-up air flow restriction indicator. Shall have Immersion engine block heater 120V 1500W with plug under door. Shall have multi-function engine connector for body builder; body builder harness to EOF for customer installed remote throttle control. Shall have 160 amp alternator; must have filter/water separator 12V preheat. Starter shall be 12V electrical system w/centralized power distribution. Batteries shall be 3 PACCAR GP31 threaded post (700) 2100 CCA dual purpose. Battery box shall be cantilever aluminum BOC w/ fiberglass cover. Located on RH side. WEIGHT: The unit shall have a total GCW of no less than 60,000 pounds. WHEELBASE: The unit shall have a minimum wheelbase of 256”; CA shall have a minimum of 182”; and overall length shall be 384”. AXLES AND SPRINGS: The unit must have a Dana Spicer D2000 Front axle rated 20k standard track, or approved equivalent. The front springs must have a capacity of not less than 20K with shock absorbers, with maintenance free elastomer spring pin bushings; The unit must have a Dual Dana Spicer D46-170HP rear axle rated at not less than 46,000 pound capacity, with internal lube pump & wheel to wheel differential lockouts, in both rear axles, or approved equivalent. Gear ratio shall be 4.30. The rear suspension shall be Tandem Hendrickson HMX460 46K, have 54” axle spacing, with shocks, track rods, rubber bolster bushings, and heavy duty torque rods, or approved equivalent. TIRES & WHEELS: Front: Accuride 22.5 x 12.25 Steel Armor powder coat, hub pilot mount, 5-hand holes. M854 385/65R22.5 18 PR or approved equal. Tandem rear: Accuride 22.5 x 8.25 Steel Armor powder coat, hub pilot mount, heavy-duty 5-hand holes. Bridgestone M843 11R22.5 16 PR or approved equal.