Dodge Ram Automatic Transmissions | 47RH, 47RE, 48RE, 68RFE, Aisin & Allison Upgrades

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Dodge Ram Automatic Transmissions – 1989 to 2024 Cummins Trucks

CPP Diesel offers the most comprehensive selection of Dodge Ram automatic transmissions for Cummins trucks from 1989 to 2024. From the early A727 and A518 transmissions to the modern 68RFE and Aisin, we provide detailed information, upgrades, and conversion options to keep your truck running strong.

Explore each transmission below and discover the best solutions for towing, performance, and reliability:

Why Choose CPP Diesel for Dodge Ram Automatic Transmissions?

Complete selection covering 1989–2024 Dodge Ram Cummins transmissions

Expert guidance on stock transmissions and heavy-duty upgrades

Internal links to each transmission page for easy navigation

Upgrades to Allison transmissions for extreme towing and commercial use

Fast shipping and professional support from diesel experts

Frequently Asked Questions

Which automatic transmissions were used in Dodge Ram Cummins trucks?

Dodge Ram Cummins trucks used A727, A518, 47RH, 47RE, 48RE, 68RFE, and Aisin transmissions depending on year and model.

What’s the difference between 47RH, 47RE, and 48RE?

The 47RH was the original 4-speed automatic for 1994–2002, 47RE added electronic controls (1997–2002), and 48RE replaced them from 2003–2007 with improved durability and shift logic.

When was the 68RFE used?

The 68RFE was introduced in 2007 and remains the standard in Dodge Ram trucks through 2024, compatible with 5.9L and 6.7L Cummins engines.

What years use the Aisin transmission?

Aisin automatics were introduced in 2013 and are standard in newer Dodge Ram Cummins trucks for improved reliability and shift quality.

Can I upgrade my Dodge Ram transmission for heavy-duty towing?

Yes, CPP Diesel offers Cummins-to-Allison conversion kits for 47RH, 47RE, 48RE, 68RFE, and Aisin transmissions to increase torque capacity and durability.