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40' diesel highest HP

ARTSBEST
Explorer
Explorer
Any input as to who makes the highest HP diesel engine in a 40' sized motor home?

I was looking at a 2014 Dynamax Grand Sport GT with 525 hp but it was sold and they have discontinued this model.

Thanks for any comments.
16 REPLIES 16

gsander1
Explorer
Explorer
Many brands with Cummins ISX650.
George in Birmingham, AL
03 Country Coach Magna

MountainAir05
Explorer II
Explorer II
Newell has a 600 bhp as standard now.