Key Features of the 2027 RAM 3500 Chassis Cab
6.4L HEMI® V8 Engine
The standard 6.4L HEMI® V8 engine gives the 2027 RAM 3500 Chassis Cab a proven gas powertrain known for strength, durability and low-end torque. Ram notes that Chassis Cabs and HEMI® V8 engines are known for performance and capability, and this engine is built with robust components to support real work. It features a cast-iron block, aluminum cylinder head, Multiple Displacement System and a dual alternator option. In the 2027 Ram Chassis Cab lineup, this engine delivers up to 375 horsepower and 429 lb-ft of torque, giving owners confident response for hauling equipment, carrying an upfit and handling business routes. Paired with the TorqueFlite® 8-speed automatic transmission, the 6.4L HEMI® V8 engine offers responsive performance across a variety of driving conditions. The transmission is designed for smooth, quick shifts that help keep the engine in its ideal power range when accelerating, towing or moving through everyday traffic. For buyers who prefer gas power, this setup offers a strong balance of capability, simplicity and daily usability.
Available 6.7L Cummins® Turbo Diesel I6 Engine
The available 6.7L Cummins® Turbo Diesel I6 engine is a major reason many commercial shoppers put the 2027 RAM 3500 Chassis Cab on a short list. Cummins diesel powertrains are respected in commercial applications, and Ram highlights this engine for its commercial-grade durability, enhanced cold-start capability, Smart Diesel Exhaust Brake, robust components and simple serviceability. In the 2027 Ram Chassis Cab lineup, the available diesel powertrain supports up to 800 lb-ft of torque and 360 horsepower, with maximum diesel towing of up to 34,540 pounds on 5500 models and a maximum GCWR of up to 43,000 pounds on 5500 models. While final capability depends on model, configuration and upfit, the diesel engine gives shoppers confidence in the depth of engineering behind the chassis cab family. It pairs with the available TorqueFlite® HD 8-Speed Automatic Transmission, designed for commercial vehicle applications and truck-grade performance. Smooth, intelligent shifting supports comfort, while the transmission’s capability helps the truck stay composed under demanding workloads.
Enhanced Power Take Off Configurations
Power Take Off capability can be essential for businesses using hydraulic equipment, utility bodies, compressors, lifts and other powered upfits. The 2027 Ram Chassis Cab lineup offers enhanced PTO flexibility designed to work across many applications. Ram states that both TorqueFlite HD Automatic Transmissions offer PTO availability from the left and right side with 4x4 or 4x2 configurations. With the available 6.7L Cummins® Turbo Diesel I6 engine, operators can choose between two speeds with split-shaft mode, and minimum split-shaft horsepower is provided even when stationary. This matters because not every job happens while the truck is rolling. Crews may need equipment power while parked at a worksite, on a farm lane, at a job trailer or beside a service call. An integrated switch bank includes six auxiliary buttons, and on models equipped with an available Power Take Off system, the sixth auxiliary switch becomes a dedicated PTO switch. This clean integration makes the truck feel purpose-built rather than modified after the fact.
Upfit-Ready Frame
The 2027 RAM 3500 Chassis Cab is designed to become the truck your business needs. Ram emphasizes that the Chassis Cab is built to be upfit-friendly, with two cab types, four cab axle lengths and nine wheelbases across the broader lineup for a wide range of configurations and capabilities. The upfit-ready frame includes straight flat frame rails, standard frame cab axle lengths and predrilled frame mounting holes. Those details matter because a cleaner, more predictable foundation can simplify the upfit process and help support better body fitment. The steel rear frame has a strength of 50,000 psi, adding confidence for demanding commercial use. The Vehicle System Interface Module offers access to over 70 vehicle inputs and outputs, including lighting and Power Take Off controls, giving upfitters more ways to integrate the truck body with vehicle systems. For shoppers comparing a 2027 RAM 3500 Chassis Cab near Paris, TN, this upfit-friendly design is especially valuable for businesses that need a service body, gooseneck-ready flatbed, contractor body or specialty trade configuration.
Uconnect® 5 NAV Infotainment System
Work trucks need more than muscle. The 2027 RAM 3500 Chassis Cab also brings technology that helps drivers stay informed, connected and confident. The Largest-in-Class Standard Touchscreen Infotainment System is 8.4 inches and supports the Uconnect® 5 NAV infotainment system. This system can create up to five driver profiles, view tow-specific navigation, access available Ram Connect One services and display Off-Road Pages that include pitch and roll, traction control and gear shifting. The available 12-inch Digital Cluster Display adds full-color 3D graphics, color customization, navigation, safety and security alerts, gauge summaries and vehicle dynamics information. Trailer Tow Pages can show Trailer Light Check and Trailer Brake Status, keeping key hauling details easier to monitor. For mobile crews, the available Ram app powered by Ram Connect can support features such as Send & Go, Vehicle Finder, Remote Vehicle Start and remote lock or unlock capability when paired with available services. Available dual wireless charging pads and an available 4G Wi-Fi® Hotspot further support workday connectivity.