Specifications include, but are not limited to: The entire unit shall be painted with manufacturers standard white paint applied over a suitable primer. Pick-up head, gutter brooms and truck frame shall be painted black. The entire unit shall be painted with paint applied over a suitable primer. Pick-up head, gutter brooms and truck frame shall be painted black. REGENERATIVE AIR SWEEPER POWER UNIT - DIESEL The sweeper power unit shall be a diesel fueled, liquid cooled, charge air-cooled, turbocharged electronic Final Tier 4 emissions John Deere PowerTechâ„¢ PWL 4.5L industrial engine, Model 4045HFC04. Engine displacement shall not be less than 275 cubic inch developing not less than 99 HP @ 2200 RPM and 315 ft. lbs. torque @ 1600 RPM. Engine shall be 4.2" bore and 5.0" stroke. Cylinder construction shall be wet sleeve type. Engine shall be equipped with a radiator fan, auxiliary drive, and engine mounted exhaust filter