Specifications include, but are not limited to: The goal of this solicitation is to secure a source to purchase three (3) 18,500 LB Hydraulic Excavators for use by the Water and Sewer Department of the City of Tulsa. Engine: 1. Liquid cooled, direct fuel injection, turbo charged diesel engine. 2. Horsepower: 69 HP minimum. 3. Displacement: 200 Cubic inches minimum. 4. Cylinders: Four (4). 5. Fuel Capacity: 26-gallons approx. 6. Air Cleaner: Dual element with restriction indicator light on instrument panel. 7. Oil Filter: replaceable element. 8. Water separator to be included. 9. Glow plug or engine pre-heat cold weather starting aid. 10. Engine compartment and fuel cap lock. 11. Engine shutdown switches for low oil pressure and high engine temperature. 12. 12-Volt electrical system with 80-amp alternator minimum. 13. Auto fuel bleed/priming system. 14. Emission: Tier IV Final. 15. Low noise level operation for operator and outside. Hydraulic System 1. Main pump flow: 52-GPM minimum. 2. Main pump: Variable piston with load sensing for max fuel efficiency. 3. Primary auxiliary flow: 39-GPM. 4. System capacity: 38-Gallons. 5. Tank capacity: 18-gallons approx. 6. Primary and secondary auxiliary circuit plumbed to the end of the dipper stick with quick connectors shall be included. 7. Hydraulic oil cooler. 8. Control pattern selector valve to accommodate operator preferences for style of controls. 30-seconds to switch approx.