From the Fire Service, Inc. Facebook page:

Congratulations and a big Thank You to Chief Jeffery Springer and the members of the Chicago Heights Fire Department on the recent delivery of a new Frontline Model M1 ambulance. This unit was built on a 2016 Chevrolet C3500 4×2 Silverado chassis. It is equipped with a 6.6L diesel. This is the 4th new unit for this busy south suburban Chicagoland department. This comes equipped with all LED emergency and interior dome lighting, Tomar Opticom System, Havis custom swing-out tablet docking station, 20A Kussmaul Super Auto Eject, custom installed Med-Vault, and an additional wall mounted suction unit/charger. This short wheel based Frontline Model M1 is the newest model in RevGroup’s long line of ambulance manufacturers and is designed as a small, sturdy, and dependable addition to any ambulance fleet. This all aluminum, extruded modular body comes equipped with over 56 cubic feet of exterior storage and 45 cubic feet of interior storage. The standard 146” long x 90” wide body comes standard with 68” interior headroom. These frontline models are also offered with or without a CPR seat. 

Chicago Heights FD Ambulance 685

Fire Service Inc. photo

Chicago Heights FD Ambulance 685

Fire Service Inc. photo

Chicago Heights FD Ambulance 685

Fire Service Inc. photo

rear of new ambulance without chevron striping

Fire Service Inc. photo

new ambulance interior

Fire Service Inc. photo