The 2019 Ram Heavy Duty is the most powerful, most capable pickup in the segment, according to the manufacturer, with a towing capacity of 15,921 kg (35,100 lbs.) and a payload capacity of 3,484 kg (7,680 lb.). Driving it all is a never-before-seen torque rating of 1000 lb.-ft. from the Cummins 6.7-litre High Output Turbo Diesel engine. The new Ram Heavy Duty also sets benchmarks in ride and handling, luxury, materials, innovation, and technology extending well past any competitive offerings.
"Ram Heavy Duty owners constantly demand the highest levels of capability to tackle the biggest jobs and with 15,921-kg. (35,100-lbs.) of towing capacity, pulled by 1,000 lb.-ft. of torque from our Cummins engine, we now hold the most important titles within the segment," said Reid Bigland, Head of Ram Brand, FCA. "We've also surrounded owners in luxury and technology that, until now, was unavailable in a heavy-duty pickup. The highest quality interiors, active safety systems and of course our award-winning Uconnect technology contribute to the best Ram 2500 andtrucks we have ever built."
With a long list of upgrades, the new Cummins 6.7-litre High Output Turbo Diesel delivers up to 1,000 lb.-ft. of torque @ 1,800 rpm and 400 horsepower @ 2,800 rpm. Changes begin at the core, with a cylinder block made from compacted graphite iron. Overall, the new Cummins Turbo Diesel weighs 27 kg (60 lbs.) less than the previous-generation engine, yet delivers more power and torque. A new cast-iron cylinder head builds on the new block with changes that include new exhaust valves and springs, and new rocker arms. Lighter and stronger pistons include new low-friction rings and connect to the crankshaft via newly design forged connecting rods and new bearings. An all-new exhaust manifold is the mounting point for an improved variable-geometry turbocharger with laminated heat shields, delivering boost pressure up to 33 psi.
The second variant of the Cummins Turbo Diesel also gets a performance boost with 370 horsepower @ 2,800 rpm and 850 lb.-ft. of torque @ 1,700 rpm.
The standard engine in the 2019 Ram 2500 and 3500 Heavy Duty is upgraded to the proven and potent 6.4-litre HEMI V8, delivering 410 gas horsepower @ 5,600 rpm and 429 lb.-ft. of torque @ 4,000 rpm to handle the payload and towing requirements of the heavy-duty truck user.
Ram 3500 Heavy Duty models equipped with the 1,000 lb.-ft. high output Cummins 6.7-litre Turbo Diesel are paired with the Aisin AS69RC electronically controlled six-speed automatic. This transmission is engineered to handle the colossal torque of the Turbo Diesel engine and increased vehicle weight ratings while delivering improved shift quality. Along with hardware upgrades, the Aisin AS69RC uses a new transmission controller with double the memory of the previous controller and a dual-core processor. This delivers faster, more precise shifts under all driving and loading conditions.
Ram Heavy Duty trucks powered by the standard output Cummins 6.7-litre Turbo Diesel are equipped with a significantly upgraded version of the 68RFE six-speed automatic transmission. Changes designed to improve the electronically controlled transmission's shift quality include new variable-force solenoid controls for the torque-converter clutch. A new reverse accumulator improves shift feel when placing the transmission into park from reverse. Drive-to-park shifts were also improved through refined hydraulic control.
In a first for the Ram Heavy Duty, the 6.4-litre HEMI V8 comes paired to the proven and smooth-shifting TorqueFlite 8HP75 eight-speed automatic. There are more than 40 individual shift maps to optimize shift points for fuel economy, performance and drivability. The transmissions use shift-by-wire technology, eliminating a mechanical linkage between the transmission and the gear selector. The 2019 Ram Heavy Duty uses an innovative rotary e-shift dial mounted on the left side of the instrument panel's centre stack - freeing up space traditionally occupied by a console- or column-mounted shift lever.
Four-wheel-drive versions of the 2019 Ram 2500 and 3500 Heavy Duty are equipped with a BorgWarner part-time transfer case. The 6.4-litre HEMI V8 and variant of the Cummins 6.7-litre Turbo Diesel drive power through either an electronic (BW 44-46) or manual shift (BW 44-47) transfer case, depending on model.
Ram Heavy Duty trucks with the high output version of the Cummins 6.7-litre Turbo Diesel are equipped with an all-new part-time BorgWarner transfer case (BW 44-48). This transfer case is designed to handle the higher input loads for maximum towing capability up to 15,921 kg. (35,100 lbs.).
New front and rear axles on the 2019 Ram 2500 and 3500 Heavy Duty have been engineered to improve durability, handle industry-leading payload and towing capabilities, and minimize NVH, as well as take advantage of opportunities to optimize weight. The Ram 3500 Heavy Duty is offered with an all-new, larger 12-inch AAM rear axle to handle the class-leading power and capability.