Cummings Diesel
We are looking at a "new to us" Itasca Horizon 40'. we have two to look at. Both have the same floor plan however one has the 400 hp the other has a 350. This would be our first diesel motorhome, is ...
Forum Discussion
"I believe the current version of the ISL is rated at 1250 torque so the Allison tranny must be able to handle 1250 not 1200."
I agree the current (2010+) ISL 450 is 1250 which means the current 3000 is good for 1250 (doubt they went to a 4000 tranny). In the years the OP is looking at the (400 HP) the 3000 is only rated for 1200... the same as my 04 ISL 400/Allison 3000 tranny.
I agree the current (2010+) ISL 450 is 1250 which means the current 3000 is good for 1250 (doubt they went to a 4000 tranny). In the years the OP is looking at the (400 HP) the 3000 is only rated for 1200... the same as my 04 ISL 400/Allison 3000 tranny.
