2013-2018 RAM 25003500 Mega Cab I (facelift ) 3500 6.7 HO Cummins TD (385 Hp) Automatic

The RAM 2500/3500 Mega Cab I, specifically the facelifted version produced from 2013 to 2018, represented a significant evolution in the heavy-duty truck segment. This generation, internally designated as the fourth generation of the RAM heavy-duty line, built upon the foundation laid by its predecessors, offering increased capability, refinement, and a wider range of configurations. The 3500 model, equipped with the 6.7-liter High Output (HO) Cummins turbodiesel engine and a six-speed automatic transmission, stood as a flagship offering, targeted towards buyers needing substantial towing and payload capacity. This particular combination occupied a premium position within the lineup, appealing to those prioritizing power and durability over fuel economy.

Technical Specifications

Powertrain & Engine Architecture

The heart of this RAM 3500 variant is the 6.7-liter Cummins turbodiesel engine, specifically the High Output (HO) version. This inline-six cylinder engine, designated with the ETK code, represents a cornerstone of Cummins’ reputation for durability and torque. The HO version differentiates itself from the standard output Cummins through a larger turbocharger and revised fuel injection settings, resulting in the increased 385 horsepower and a substantial 1152 Nm (849.67 lb-ft) of torque. The engine utilizes a diesel commonrail fuel injection system, delivering highly pressurized fuel directly into the cylinders for optimized combustion. The overhead valve (OHV) valvetrain, while a more traditional design, contributes to the engine’s robustness and low-end torque characteristics. The engine’s robust construction, including a cast iron block and head, is designed for longevity and high mileage. Paired with the engine is a six-speed automatic transmission manufactured by Aisin. This transmission was chosen for its ability to handle the immense torque output of the Cummins engine and provide smooth, reliable shifting.

Driving Characteristics

The 6.7L HO Cummins with the Aisin automatic delivers a driving experience focused on capability rather than outright speed. While 385 horsepower is respectable, the engine’s true strength lies in its massive torque output, available from very low RPMs. This translates to effortless towing and hauling, even with substantial loads. The Aisin transmission is well-matched to the engine, providing smooth and decisive shifts. Compared to the gasoline-powered RAM 2500/3500 models, the diesel offers significantly more torque and towing capacity, but at the expense of fuel economy and initial purchase price. Compared to other Cummins variants, like those with manual transmissions, the automatic offers convenience and ease of use, particularly in stop-and-go traffic. However, some drivers may prefer the more direct feel and control offered by a manual gearbox. The gear ratios in the Aisin transmission are optimized for towing, with lower gears providing ample pulling power and higher gears allowing for comfortable highway cruising.

Equipment & Trim Levels

The 3500 Mega Cab with the 6.7 HO Cummins and automatic transmission typically came standard with a well-equipped interior. Base trims included features like air conditioning, power windows and locks, a basic audio system, and vinyl upholstery. Higher trim levels, such as Laramie and Limited, added luxury features like leather upholstery, heated and ventilated seats, a premium audio system, navigation, and a variety of driver-assistance technologies. The Mega Cab configuration offered a significantly larger rear seat area compared to the standard cab, making it ideal for families or crews. Optional extras included a sunroof, upgraded wheels, and various appearance packages.

Chassis & Braking

The RAM 3500 chassis is built for heavy-duty use. It features a robust frame and a heavy-duty suspension system designed to handle substantial payloads and towing loads. The front suspension utilizes an independent multi-link design for improved ride comfort and handling, while the rear suspension employs a traditional leaf spring setup for durability and load-carrying capacity. Braking duties are handled by disc brakes on all four wheels, providing ample stopping power even when heavily loaded. An Anti-lock Braking System (ABS) is standard equipment. Due to the high weight of the vehicle, stabilizer bars were utilized to reduce body roll during cornering.

Market Reception & Comparison

The RAM 3500 with the 6.7 HO Cummins and automatic transmission was generally well-received by critics and consumers alike. It was praised for its immense towing and hauling capabilities, comfortable ride quality, and refined interior. Fuel economy, however, was a common criticism, as is typical for heavy-duty diesel trucks. Compared to the gasoline-powered RAM 2500/3500 models, the diesel offered superior towing and payload capacity, but at a higher price point. Compared to competing trucks from Ford and General Motors, the RAM 3500 was often seen as offering a more comfortable ride and a more luxurious interior.

Legacy

The 6.7-liter Cummins engine, in all its iterations, has earned a reputation for exceptional reliability and longevity. Properly maintained, these engines can easily exceed 300,000 miles. The Aisin automatic transmission is also known for its durability. In the used car market, these RAM 3500s hold their value well, particularly those in good condition with well-documented maintenance histories. They remain a popular choice for buyers needing a capable and reliable heavy-duty truck for work or recreational purposes. The combination of power, durability, and comfort has cemented this variant’s place as a benchmark in the heavy-duty truck segment.