In June, over 400 Cummins Turbo Diesel owners brought their Ram trucks to Indiana to spend a fun-filled day at the Columbus MidRange Engine Plant (CMEP). These Cummins enthusiasts are all members of Turbo Diesel Register (TDR), the only owners’ club, magazine and online publication dedicated solely to Cummins-powered Ram Heavy Duty trucks. See TDR Rally for more.
TDR Rally Returns to Columbus, Ind.
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