BOBWhite Posted January 8 Share Posted January 8 (edited) Mh653's are 3406 Caterpillar powered and Mh652's are 3208 powered. Only 4 of the 3208 powered ones were made which isn't surprising. If I remember correctly the C-15's are 14.8 liter and C15's are 15.2 but I might have that backwards. It might also only be the C15 ACERT's that were 15.2 liter. Edited January 9 by BOBWhite Quote Link to comment https://www.bigmacktrucks.com/topic/73610-1985-mack-mh613-cabover/page/2/#findComment-544817 Share on other sites More sharing options...
Popular Post mechohaulic Posted January 8 Popular Post Share Posted January 8 On 12/26/2023 at 4:22 PM, JMetz said: 6NZ is a C-15, and a highly sought after pre emission Cat motor. Often referred to as one of the best Cat motors produced. motors are electric ==diesel are engines 😄 2 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73610-1985-mack-mh613-cabover/page/2/#findComment-544818 Share on other sites More sharing options...
farmer52 Posted January 8 Share Posted January 8 MH653 - Caterpillar 6x2 - single drive axle 6x3 - tandem drive axles A MH652 would be a Caterpillar powered single axle. Here is the link to a YT video explaining the differences in the CAT 3400 family engines. 2 Quote Ken PRR Country and Charter member of the "Mack Pack" Link to comment https://www.bigmacktrucks.com/topic/73610-1985-mack-mh613-cabover/page/2/#findComment-544819 Share on other sites More sharing options...
BOBWhite Posted January 9 Share Posted January 9 4 hours ago, farmer52 said: MH653 - Caterpillar 6x2 - single drive axle 6x3 - tandem drive axle A MH652 would be a Caterpillar powered single axle. Noted and fixed thank you. I have no idea where I got the idea of the model number denoting the model of engine. I did read something about the 3208 being offered in the Mh but I have never seen or heard of one. Quote Link to comment https://www.bigmacktrucks.com/topic/73610-1985-mack-mh613-cabover/page/2/#findComment-544831 Share on other sites More sharing options...
farmer52 Posted January 9 Share Posted January 9 I am "guessing" the MH642/3 were Detroit engines? Anyone know for sure? Quote Ken PRR Country and Charter member of the "Mack Pack" Link to comment https://www.bigmacktrucks.com/topic/73610-1985-mack-mh613-cabover/page/2/#findComment-544842 Share on other sites More sharing options...
bbigrig Posted April 13 Share Posted April 13 On 1/9/2024 at 5:31 AM, farmer52 said: I am "guessing" the MH642/3 were Detroit engines? Anyone know for sure? Yes Detroit. Only the 6V92 was offered between 1984 and 1985 from what I understand. 34 MH642 were built and 52 MH643 were built. No MHs were ever built with 60 series Detroit. 2 Quote Link to comment https://www.bigmacktrucks.com/topic/73610-1985-mack-mh613-cabover/page/2/#findComment-549919 Share on other sites More sharing options...
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