2003-2007 (5.9 Cummins)
48RE
4-speed Chrysler unit. TCC apply and governor pressure solenoid are the high-failure items. Solve those and the rebuild lasts.
Shop 48RE Parts2007-present (6.7 Cummins)
68RFE
6-speed Chrysler. Solenoid block + OD clutch pack are the high-failure items. Aux cooler MANDATORY for towing trucks.
Shop 68RFE PartsAisin AS69RC (HD trims)
Aisin AS69RC
Specialty 6-speed in HD trim Cummins trucks. Most shops sub-out to specialists.
Shop Aisin AS69RC PartsCummins customers are loyal and refer aggressively to other fleet operators. Stock the 48RE + 68RFE catalogs deep and you build a recurring book of business that pays for itself in 6 months.