Bourne, MA – GMC G4500 / Horton Ambulance Project Manager: Keith Jackson Delivery Date: August 2012 FEATURES: 6.6 Liter Duramax Diesel Engine 6-speed electronically controlled automatic transmission with overdrive Horton Intelliplex system Post navigation Billerica, MA – E-ONE Custom Cyclone II HP-100’ LadderGloucester, MA – International/Horton Model 623 Medium Duty Ambulance