Our we the only ones havin DEF head issues. Bluebird uses Shaw Development heads out of Florida. They now are supposedly on national back order. 4 busses down will not run cause we can not get emmision parts.
Need to remove emmisions on all vehicles that do not run down the highway and get hot enough to work properly.
We have about 60 2013 and newer FE buses with the Cummins 6.7 in them and we've replaced about 10 of them. Non-serviceable parts, but luckily they are under warranty.
well we are now up to 8 buses that need DEF heads still no word when we will get some. all under warranty. to bad they wont pay for everyday bus is down and cant be used to make some money.