Engine 234 is a 1974 Crown Firecoach, model CP-150-V56D and serial number F1703.  It is owned by the University of California at Davis.  E234 is powered by a 350 horsepower Detroit Diesel 8v71 engine and fitted with a Waterous 1,500gpm pump with 500 gallon tank.
Thanks to Firefighter Brett Boukather for providing this and many other great photos all of us to enjoy.