Specifications include, but are not limited to: 1. Model: New 2021 or later model 2. Quantity: Two (2) 3. Maximum GVWR: Not less than 33,000 pounds 4. Tires: Front – 11R 22.5 – 2, 14 Ply Highway Tread (or equivalent); Rear - Four (4) lug grip radial 11R 22.5, 14 Ply (or equivalent) 5. Wheels: Six (6) steel disc 22.5” diameter – 8 ¼” rim section, Include two extra wheel to be used as a spare, painted white 6. Diesel Engine: Shall be equipped with diesel engine with full flow oil filter, dry type air cleaner, 12 volt electrical equipment with maintenance free batteries with not less than 455 cold cranking amps each at 0 degrees F; not less than 150 amps alternator. Block heater; anti-freeze protected to -20 degrees F. Engine shall not be less than 300 H.P. 7. Exhaust System: Vertical muffler and exhaust system shall be on right side. Muffler and stack must allow for dumping without hitting stack. Exhaust must have a short turn out Pipe. Each manufacturer must show drawings of how the DPF System will be located or installed and show back of cab interference. If using an under frame DPF system, please specify clearance to ground: 10 inches 8. Cooling System: As regularly furnished by the manufacturer for use with the engine size required above 9. Front Axle: I beam with a capacity of not less than 14,000 lbs with shocks 10. Bumper: Manufacturer installed bumper.