Cummins 400 ISL diesel particulate filter
I am getting a new to me 2007 Itasca Horizon DP with the 8.9 Cummins ISL 400hp engine. The EPA 2007 rules required a diesel particulate filter. Was that a requirement on 2008 model year or 2007 engine...
Forum Discussion
You could have a 06 engine in it and if it's advertised as 400HP, not 425 then it probably does not have one. Like MM suggested... call Cummins and ask about it and the exhaust/Jake brake. If it has a switch for HI/Low brake it's a Jake brake.
