The 66RFE six-speed automatic transmission is a sophisticated, multirange, electronically controlled transmission that combines optimized gear ratios for responsive performance and state-of-the-art efficiency. Standard on Ram 3500 Chassis Cab models only.
The available 5.7L HEMI® V8 engine (3500 models only) is equipped with enhanced Variable Valve Timing (VVT) to help improve torque. Interactive Deceleration Fuel Shut Off (IDFSO) shuts valves down during cruising and deceleration for optimal efficiency and performance.
When equipped with the available 6.7L Cummins® Turbo Diesel engine, the Ram Chassis Cab has the power and performance to handle the heaviest jobs with ease.
The Ram Chassis Cab offers dual alternators that provide a Best-in-Class 440 amps when paired with the available 6.7L Cummins® Turbo Diesel engine to handle increased electrical draws from upfits and accessories.
When you need a big rig to handle the heavy-duty hauls, there’s no room for compromise. Dual rear wheels on the Ram Chassis Cab lend better stability and traction for those moments when everything is on the line. Dual rear wheels are available on 3500 and standard on 4500 and 5500.
With a rear flat frame and a Best-in-Class rear frame steel strength of 50,000 psi on the available 6.7L Cummins®, the Ram Chassis Cab is an upfitter’s dream.
Factory-installed roof clearance lamps come standard on all Ram Chassis Cab models.
Standard quad headlamps feature high-efficiency halogen headlamp bulbs for exceptional performance and long-lasting life..
The center stack, complete with large knobs and intuitive switches, is designed for maximum usability, even for a gloved hand.
Expect a productive workday. The Ram Chassis Cab with the available 6.7L Cummins® Turbo Diesel offers Best-in-Class Maximum GCWR and Maximum Towing.
With a refined interior, you don't have to sacrifice comfort or style even during the dirtiest, most rugged jobs.
The Ram Chassis Cab interior is designed to give you a welcome respite from a hard day's work, giving rear-seat occupants the same quality, fit and comfort as the driver.
At the Ram brand, we stand behind our trucks. Decades of rigorous safety, security and quality testing go into every model before the rubber hits the road. Which is why we have the confidence to back them with a 5-Year/100,000-Mile Powertrain Limited Warranty
We’ve equipped our Ram Chassis Cab 4500 and 5500 trucks with the largest brake rotors in their class+ over 15 inches in size. So your truck can keep on stopping without slowing down your work.
Built into every 6.7L Cummins® Turbo Diesel engine is a class-exclusive smart exhaust brake+ to help your rotors and brake pads last longer. Similar to a standard speed control, the Cummins Smart Brake senses when you're traveling downhill with a heavy load and gently engages itself to maintain a steady speed, helping your four-wheel disc antilock brake system last longer.
Bring the heavy. With Best-in-Class rear frame steel strength of 50,000 psi, the Ram Chassis Cab has the muscle and strength to handle your heaviest loads.