RAM 2500/3500 Cummins Transmission Rebuild Parts

Cummins-truck transmission rebuilds are the highest-margin commercial work an independent shop can land. Fleet customers buy in volume and pay invoices on terms.

Fixing it yourself? Shop complete master rebuild kits with frictions, steels, gaskets and seals — shipped fast from the USA.
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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.

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2007-present (6.7 Cummins)

68RFE

6-speed Chrysler. Solenoid block + OD clutch pack are the high-failure items. Aux cooler MANDATORY for towing trucks.

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Aisin AS69RC (HD trims)

Aisin AS69RC

Specialty 6-speed in HD trim Cummins trucks. Most shops sub-out to specialists.

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Cummins 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.
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