Found this just in time.
LA County and la city use different spec KME Predator severe service engines, as well as pierce engines, alf tillers, and a few seagraves left as pumps for lightforces/task forces
http://fire.kovatch.com/info/newswire/city-of-los-angeles-chooses-kme
Image :
private ambulances in la county use mainly ford e350s with leader boxes, la city uses a dodge cab with a road rescue i believe, it's been a little bit since i've gotten to hang out with those guys though. their hazmat and heavy rescue are both pierce. Any other questions pm me, I worked out there