Medium duty engine/tranny?
Who/what/how is this rating awarded?
Forum Discussion
Like others have said, virtually all of the big 3's diesel engines have been used in medium duty applications, and many for vehicles of over 26K. There is obviously the Cummins B engine, but the International versions of the 7.3,6.0 (yes even that motor) and 6.4 engines have also been used in medium duty and bus applications of up to around 32K GVWR. The 6.6 Duramax used to be in the "light" medium duty Kodiak trucks but I'm not aware of any MD applications that motor is in now.
