What transmission does the 2024 Cummins have?
The 2024 Ram Heavy Duty models equipped with the 6.7L Cummins Turbo Diesel use a six-speed automatic transmission built by AISIN; there is no manual option for this engine in the 2024 model year.
In 2024, Ram’s heavy-duty lineup pairs the Cummins turbo-diesel engine with a purpose-built automatic transmission designed to handle high torque and demanding towing duties. Below is a concise breakdown of the transmission setup for the 2024 Cummins-equipped Ram Heavy Duty trucks.
Transmission configuration for the 2024 Cummins
The 2024 Cummins-equipped Ram Heavy Duty trucks pair the 6.7L Turbo Diesel with a six-speed automatic transmission. The arrangement is designed to handle high torque and heavy hauling duties, and no manual option is offered for this engine in 2024.
Key transmission details you should know before purchasing:
- Type: Automatic transmission with six forward gears
- Manufacturer: AISIN (a third-party supplier of heavy-duty automatics)
- Manual option: Not available for the 6.7L Cummins in 2024
- Applications: Standard on Ram 2500 and Ram 3500 Heavy Duty models powered by the 6.7L Cummins Turbo Diesel
These features emphasize durability and towing performance. For buyers concerned about gear count, the six-speed automatic is purpose-built to manage the torque curve of the Cummins diesel and to provide smooth shifts across a range of load conditions.
Context and historical note
Historically, Ram’s heavy-duty trucks have relied on automatic transmissions with Cummins diesels; manual gearboxes were offered in earlier generations, but they are not present in the modern 2024 lineup. The 2024 model year continues that trend, prioritizing automatic operation to maximize reliability, torque handling, and towing capability for heavy-duty work and commercial use.
What this means for drivers
For everyday driving and heavy towing, the six-speed automatic provides expected performance, with features such as Tow/Haul mode and engine braking to assist in steep grades or heavy loads. If you are shopping for a Cummins-equipped Ram and require a manual transmission, you would need to look at older model years or different brands; the 2024 Ram Heavy Duty does not offer a manual option with the Cummins engine.
Summary
The 2024 Cummins-equipped Ram Heavy Duty uses a six-speed AISIN automatic transmission, with no manual transmission option for the 6.7L Cummins engine in that model year. This pairing is designed to provide robust towing and durability, matching the engine's torque output and heavy-duty use cases.
Is the 2024 68RFE transmission good?
68rfe is a weak transmission. Barely capable of keeping up with a stock Cummins. Add power and you may have started a timer to disaster. Highly recommend getting the Aisin or G56.
What transmission does the 2024 Ram 2500 Cummins have?
Cummins® Turbo Diesel Engine Available
It offers 429 lb-ft of torque and comes with rear-wheel drive and an 8-speed automatic transmission.
What transmission is in the 2025 Cummins?
8-speed transmission
of torque for Pickups, and 360 horsepower and 800 lb. -ft. of torque for Chassis Cab. In close collaboration with Ram and their powertrain providers, the 2025 Cummins 6.7L Turbo Diesel engine is optimized with a brand-new 8-speed transmission, providing the right combinations of power, responsiveness and driveability.
Does RAM still use the Aisin transmission?
Yes, Ram diesel trucks still use the Aisin transmission in certain configurations, particularly the heavy-duty models equipped with the high-output Cummins engine. For example, the 2025 Ram Heavy Duty models retain the Aisin AS69RC, which features improved internal components for the new model year.
- Where it's found: The Aisin AS69RC is commonly paired with Ram Chassis Cab models and 3500 models that use the high-output 6.7L Cummins diesel engine. It is known for its high torque capacity, making it a robust option for heavy towing and hauling.
- Other options: In other diesel configurations, such as the standard 6.7L Cummins in some 2500 and 3500 models, Ram uses a different transmission, the 68RFE.
- Future outlook: While Ram continues to use the Aisin for its heavy-duty models, some reports suggest that the company may look to other transmission manufacturers for future heavy-duty truck generations.
