Gloucester, MA – International/Horton Model 623 Medium Duty Ambulance Project Manager: Larry Woodbury Delivery Date: August 2012 FEATURES: Maxx Force 300 HP diesel engine Allison EVS 3000 automatic 5-speed electronic transmission Horton Intelliplex System. Post navigation Bourne, MA – GMC G4500 / Horton AmbulanceTremont, ME – Ford Mini-Pumper