2019 Ram Chassis Cab With New Limited Trim Makes Debut

Credit: Ram Trucks
Hot on the heels of revealing the new Ram Super Duty lineup in Detroit, Ram is showing off its new Ram Heavy-Duty 3500, 4500 and 5500 Chassis Cab at the Chicago Auto Show. The 2019 model-year brings changes to the Cummins Diesel engine, a new sharkfin antenna and a new top of the line luxury trim to the lineup.

New Limited Model

Four trim levels are offered on the 2019 Ram Chassis Cab: Tradesman, SLT, Laramie and the new top-of-the-line Limited. It adds even more luxury touches than the Laramie offered. Like the all-new Ram 1500, the Chassis Cab offers a 12-inch reconfigurable touchscreen display with SiriusXM.


The standard engine in the 2019 Ram 3500/4500/5500 Chassis Cab is the 6.4-liter HEMI V-8 with up to 410-horsepower and 429 lb.-ft. of torque. The Ram 3500 Chassis Cab now employs Fuel Saver Technology cylinder deactivation to increase fuel economy. When the engine is paired with the optional Aisin AS66RC six-speed automatic transmission with Power Take-Off (PTO), Fuel Saver Technology functions under light load while in stationary PTO mode to reduce fuel consumption.

In the Ram 4500 and 5500 Chassis Cab, the 6.4-liter HEMI V-8, paired with the 6-speed automatic transmission with optional Power Take-Off (PTO) capability, delivers 370-horsepower and 429 lb.-ft. of torque.

Cummins Turbo Diesel Updates

A significantly revised Cummins 6.7-liter inline-six Turbo Diesel is optional on the 2019 Ram 3500/4500/5500 Chassis Cab. Paired with the six-speed automatic transmission with optional PTO capability, the Cummins engine delivers 360-horsepower and torque in Class 4 and 5 at 800 lb.-ft.

Changes to the Cummins engine include a cylinder block made from compacted graphite iron. Using compacted graphite iron produces a block that is stronger and better able to dampen vibrations. Overall, the new Cummins Turbo Diesel weighs 60 pounds less than the previous-generation engine.

A new cast-iron cylinder head builds on the new block with changes that include new exhaust valves and springs, and new rocker arms driven by a hollow camshaft, contributing to the weight savings. Changes to the Cummins Turbo Diesel also include a new oil pump and water pump with lightweight-aluminum housing.

Transmission Options

The 2019 Ram 3500/4500/5500 Chassis Cab offers customers three automatic transmissions.

  • The efficient, smooth-shifting TorqueFlite 8HP75 eight-speed automatic is the standard transmission with the 6.4-liter HEMI V-8 in the 2019 Ram 3500 Chassis Cab. It’s also the first time an eight-speed transmission is offered in the segment.
  • An electronically controlled six-speed automatic is the standard transmission for 2019 Ram 4500/5500 Chassis Cabs equipped with the 6.4-liter HEMI V-8, and optional on the Ram 3500 Chassis Cab with the 6.4-liter HEMI V-8. This transmission offers the option of PTO capability on the left or right side.
  • New 2019 Ram 3500/4500/5500 Chassis Cab trucks equipped with the Cummins 6.7-liter Turbo Diesel use a six-speed automatic transmission also featuring PTO capability on the left or right side in 4x2 and 4x4 configurations.


With a towing capacity up to 35,220 pounds, a Gross Combined Weight Rating of 43,000 pounds and payload up to 12,510 pounds.


The four-wheel disc braking system on the 2019 Ram Chassis Cab gets an upgrade and a larger ratio pedal swing. The reengineered system also offers shorter stopping distances and braking to match the highest capability.

Frame and Design

Ram Chassis Cab trucks come in four industry-standard frame lengths measured in inches from the cab to the rear axle (CA): CA 60, CA 84, CA 108 and CA 120. Frame rail width also follows industry guidelines at 34-inch spacing. All 2019 frames are built with up to 97-percent high-strength steel and eight separate cross members. With upfits in mind, Ram Chassis Cab rear frame sections feature a C-channel design with flat mounting surface — zero component interference above the rails, making upfit and accessory design/installation easy, cost-effective and reliable. Additionally, pre-drilled holes are designed throughout the structure to route upfit lines or mount hardware related to the upfit.

Vehicle System Interface

A Vehicle System Interface Module (VSIM) is capable of communicating between aftermarket modules and various factory control modules. The VSIM upfitter interface module features more than 70 inputs and outputs, including lighting controls, door position, and throttle and transmission position.

Safety and Driver Assistance

In the cab chassis segment, only the 2019 Ram Chassis Cab features Adaptive Cruise Control, Forward Collision Warning, Automatic Emergency Braking (AEB) and AEB with trailer brakes available on all trim levels.

A class-exclusive ParkSense Park Assist system provides visual and audible indications and a 270-degree camera system with trailer reverse-guidance view gives greater field of vision. An available cargo-view camera allows owners to monitor the upfit and/or payload in the rear of the truck. The system also aids hookup with fifth-wheel and gooseneck hitches.

New Shark Fin Antenna

All navigation, Wi-Fi, radio and SiriusXM with 360L tasks are handled by a new shark fin antenna — making the new 2019 Ram Chassis Cab the first-in-segment without a mast antenna. The new antenna reduces wind noise, improves signal reception and simplifies select upfits.

Not to be outdone, Ford is also announcing a new 7.3-liter V8 gas engine for its heavy-duty trucks. We’ll bring you details on it on our website and in next week’s Car Pro Newsletter.
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