2012 RAM 25003500 Mega Cab I 3500 6.7 HO Cummins TD (350 Hp) DRW

The RAM 2500/3500 Mega Cab 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 (2010-2018) of the RAM heavy-duty lineup. It catered to buyers needing substantial towing and payload capacity, particularly in the commercial and agricultural sectors, while also appealing to those desiring a spacious and comfortable cabin. This variant, often referred to as a “DRW” (Dual Rear Wheel) model, distinguished itself through its enhanced stability and load-carrying capabilities compared to single rear wheel configurations.

Technical Specifications

INTRODUCTION

The 2012 RAM 3500 Mega Cab with the 6.7 HO Cummins engine and dual rear wheels was positioned as a premium offering within the RAM heavy-duty lineup. The “Mega Cab” configuration provided an exceptionally spacious interior, setting it apart from standard crew cab models. This truck was designed for owners who frequently tow large trailers – such as fifth-wheels, gooseneck trailers, or heavy equipment – and require a robust platform capable of handling significant payloads. The DRW setup, with its wider stance, offered increased stability and load distribution, making it a preferred choice for demanding applications. While a 6-speed manual transmission was standard, an optional automatic transmission was available.

Powertrain & Engine Architecture

At the heart of this RAM 3500 lies the Cummins 6.7-liter inline-six diesel engine, designated the HO (High Output) variant. This engine, identified by the ETJ code, represents a significant evolution of Cummins’ long-standing reputation for durability and torque. The engine utilizes a diesel commonrail fuel injection system, delivering highly pressurized fuel directly into the cylinders for optimized combustion. The HO version featured a variable geometry turbocharger (VGT) and an intercooler, boosting power output to 350 horsepower at 3000 rpm and a substantial 881 lb-ft of torque at 1500 rpm. The engine’s OHV (Overhead Valve) valvetrain, while traditional, contributed to its robustness and reliability. The standard transmission was a robust 6-speed manual, but a 6-speed automatic transmission was also offered, providing convenience for drivers in stop-and-go traffic or those preferring an easier driving experience.

Driving Characteristics

The 3500 DRW with the 6.7 HO Cummins and manual transmission delivered a commanding driving experience. The immense torque available from low engine speeds made towing heavy loads feel remarkably effortless. The manual transmission allowed for precise control over gear selection, particularly useful when navigating challenging terrain or managing engine braking on descents. The automatic transmission, while offering convenience, slightly diminished the direct connection to the engine’s power delivery. However, it still provided ample power for towing and hauling. The DRW configuration significantly improved stability, reducing body roll and sway when towing. The ride quality, even unladen, was relatively comfortable for a heavy-duty truck, though it was noticeably firmer than lighter-duty pickups.

Equipment & Trim Levels

The 2012 RAM 3500 Mega Cab I 3500 6.7 HO Cummins TD (350 Hp) DRW was typically offered in higher trim levels, such as Laramie or Limited. Standard features included premium cloth or leather upholstery, power-adjustable seats, a high-quality audio system, and automatic climate control. Optional extras included a navigation system, a rear-seat entertainment system, heated and ventilated front seats, and a sunroof. The Mega Cab configuration itself was a significant feature, providing class-leading rear-seat legroom and overall cabin space. Exterior features often included chrome accents, alloy wheels, and a factory-installed bed liner.

Chassis & Braking

The chassis of the RAM 3500 was designed to withstand the stresses of heavy-duty use. It featured a robust frame and a heavy-duty suspension system. The front suspension utilized a double wishbone design, while the rear suspension employed leaf springs, optimized for load-carrying capacity. Braking duties were handled by disc brakes on all four wheels, providing ample stopping power even when towing. An Anti-lock Braking System (ABS) was standard, enhancing safety and control. The DRW configuration utilized larger, heavier-duty axles and brakes compared to single rear wheel models.

Market Reception & Comparison

The 2012 RAM 3500 DRW with the 6.7 HO Cummins engine received generally positive reviews from automotive critics. It was praised for its powerful engine, spacious interior, and impressive towing and payload capabilities. Compared to the standard RAM 2500, the 3500 offered a significantly higher towing capacity and payload rating. Compared to competitors like the Ford F-350 and Chevrolet/GMC 3500, the RAM 3500 was often lauded for its comfortable ride and well-appointed interior. Fuel economy, as expected for a heavy-duty diesel truck, was modest, averaging around 17-20 mpg on the highway. Reliability was generally good, though diesel engines can be more expensive to maintain than gasoline engines due to the complexity of the fuel injection system and emissions controls.

Legacy

The 6.7 HO Cummins engine has proven to be exceptionally durable and reliable, with many examples exceeding 200,000 or even 300,000 miles with proper maintenance. The 2012 RAM 3500 DRW remains a popular choice in the used truck market, particularly among those seeking a capable and comfortable work truck. Its spacious interior and robust powertrain continue to appeal to buyers who need a truck that can handle demanding tasks. The DRW configuration, while less common than single rear wheel models, commands a premium price due to its enhanced stability and load-carrying capacity. The engine’s continued popularity has solidified Cummins’ reputation as a leading manufacturer of heavy-duty diesel engines.