2012 RAM 25003500 Crew Cab Long I 3500 6.7 HO Cummins TD (350 Hp) 4×4 DRW

The RAM 2500/3500 Crew Cab Long I, specifically the 3500 model equipped with the 6.7 HO Cummins turbocharged diesel engine producing 350 horsepower, represents a significant offering in the heavy-duty pickup truck segment. Introduced for the 2012 model year, this configuration was part of the fourth generation of Dodge/RAM heavy-duty trucks (2009-2018), known internally as the D/W series. This particular variant, often found in a Dual Rear Wheel (DRW) configuration, was designed to cater to owners requiring substantial towing and payload capacity for commercial or demanding personal use. It occupied a position between the standard output Cummins and the even more powerful Cummins variants, offering a balance of capability and, relatively speaking, fuel efficiency.

Technical Specifications

Powertrain & Engine Architecture

The heart of this RAM 3500 is the 6.7-liter Cummins inline-six diesel engine, designated as the HO (High Output) variant. This engine, part of the Cummins ISB family, utilizes a cast iron block and aluminum cylinder head. The “ETJ” engine code identifies specific calibration and component variations for the 2012 model year. The HO version distinguishes itself from the standard output Cummins through the use of a larger turbocharger and revised fuel injection settings, resulting in the increased 350 horsepower and 881 lb-ft of torque. Fuel is delivered via a Bosch common rail direct injection system, allowing for precise fuel metering and optimized combustion. The engine features an overhead valve (OHV) valvetrain, a design choice favored for its durability and simplicity. The 6-speed manual transmission was standard, providing robust gear ratios suited for heavy hauling and towing.

Driving Characteristics

The 3500 with the 6.7 HO Cummins and manual transmission delivers a driving experience focused on capability rather than outright speed. The substantial torque output, readily available from 1500 rpm, allows for effortless towing and hauling, even with significant loads. The manual transmission provides the driver with full control over gear selection, which is crucial when navigating challenging terrain or managing heavy trailers. While the engine is relatively quiet for a diesel, it’s not as refined as some newer diesel offerings. The ride quality, even with the leaf spring rear suspension, is acceptable for a heavy-duty truck, but it’s noticeably firmer when unladen. Compared to the standard output Cummins, the HO version offers a more responsive feel, particularly when accelerating with a load. However, it does come at the expense of slightly reduced fuel economy.

Equipment & Trim Levels

The 2500/3500 Crew Cab Long I 3500 6.7 HO Cummins TD (350 Hp) 4×4 DRW was typically offered in several trim levels, including STX, SLT, and Laramie. The base STX trim provided essential features like air conditioning, power windows and locks, and a basic audio system. The SLT trim added features such as upgraded cloth upholstery, a premium audio system, and alloy wheels. The Laramie trim represented the highest level of luxury, offering leather upholstery, heated and ventilated front seats, a navigation system, and a host of other convenience features. Standard equipment across most trims included a heavy-duty cooling system, a trailer brake controller, and a limited-slip differential. Optional extras included a sunroof, a rear-seat entertainment system, and various appearance packages.

Chassis & Braking

The chassis of the RAM 3500 is built around a robust fully boxed frame, designed to withstand the stresses of heavy-duty use. The front suspension utilizes an independent multi-link setup, providing a relatively comfortable ride and good handling characteristics. The rear suspension employs a traditional leaf spring design, optimized for load-carrying capacity. Braking duties are handled by four-wheel disc brakes, equipped with an Anti-lock Braking System (ABS). The DRW configuration provides increased stability and braking performance when towing heavy loads. Tire sizes varied depending on the trim level and wheel options, ranging from 245/70R17 to 275/70R18.

Market Reception & Comparison

The 2012 RAM 3500 with the 6.7 HO Cummins engine received generally positive reviews from automotive critics. It was praised for its impressive towing and payload capacity, robust powertrain, and comfortable interior (particularly in the higher trim levels). Compared to its competitors – the Ford Super Duty and Chevrolet/GMC HD trucks – the RAM 3500 was often noted for its smoother ride quality and more refined interior. Fuel economy, while not a primary concern for heavy-duty truck buyers, was considered adequate for its class. Reliability was generally good, although some owners reported issues with the exhaust gas recirculation (EGR) system and the diesel particulate filter (DPF).

Legacy

The 6.7-liter Cummins engine has become legendary for its durability and longevity. The 2012 model year HO variant continues to be a popular choice in the used truck market, particularly among those seeking a capable and reliable workhorse. Properly maintained examples can easily exceed 200,000 miles. While newer heavy-duty trucks offer more advanced technology and features, the 2012 RAM 3500 remains a compelling option for buyers who prioritize proven reliability and raw towing power. The engine’s robust design and relatively simple mechanicals make it a favorite among diesel enthusiasts and mechanics alike, ensuring a steady demand for parts and service for years to come.