2025 Ram 3500/4500/5500 Chassis Cab Are Ready For Work
Updated Looks, New Cummins, Powerline Transmissions, and Ready For Duty...
While much of the focus has been on Ram’s updated Heavy Duty pickup truck lineup, the brand has also introduced the all-new 2025 Ram 3500, 4500, and 5500 Chassis Cab trucks. These hard-working vehicles combine cutting-edge innovation, rugged durability, and top-tier capability. Designed for the toughest jobs, the updated Chassis Cab lineup now features upgraded powertrains, improved upfitter-friendly designs, and advanced technology, solidifying their place as the go-to choice for demanding tasks.
So let’s take a deeper look at what is new for the 2025 Ram 3500/4500/5500 Chassis Cab models.
Unparalleled Powertrain Options for Maximum Capability –
The 2025 Ram Chassis Cab trucks provide buyers with two robust engine options, each designed to handle the toughest jobs while maximizing efficiency and performance.
6.7-Liter Cummins Turbo Diesel I6 –
The headline feature for 2025 is the new 6.7-liter Cummins Turbo Diesel I6 engine. Built in collaboration with Cummins, this powertrain delivers 360 horsepower and a staggering 800 lb.-ft. of torque. Several significant upgrades have been made to enhance this engine’s performance and durability:
- Redesigned Block and Head: Reinforced for improved durability under heavy loads.
- High-Performance Components: Includes heavy-duty pistons, a re-engineered turbocharger, and larger intake/exhaust valves to boost airflow and efficiency.
- Fuel System Enhancements: A higher-pressure fuel injection system delivers better performance and economy.
- Cold Weather Support: Glow plugs now come standard, ensuring reliable starts in extreme cold.
- Noise and Vibration Reduction: Helical transmission gears and improved intake geometry reduce noise, vibration, and harshness (NVH).
To make maintenance easier, the Cummins engine now features top-feed injectors and integrated fuel filters, along with selectable oil change intervals. Operators using B20 biodiesel can follow a 12,000-mile oil change schedule, while those using standard diesel can extend intervals to 15,000 miles.
6.4-Liter HEMI® V8 –
For those preferring a gas-powered option, the standard 6.4-liter HEMI® V8 engine offers 375 horsepower and 429 lb.-ft. of torque. Known for its reliability and smooth performance, this engine delivers strong towing and payload capabilities, making it a versatile choice for various job sites.
8-Speed Transmissions Across The Board –
The 2025 Ram Chassis Cab lineup comes standard with 8-speed automatic transmissions across all models. For the 3500 Under 10K GVWR Chassis Cab, Ram equips it with the 8HP75-LCV 8-speed automatic, the same transmission found in the Ram 2500/3500 Heavy Duty pickups. This transmission is a more robust version of the 8HP75 used in the Ram 1500, with the “LCV” designation signifying its suitability for light commercial vehicle applications. It features enhancements specifically designed to handle heavy-duty tasks.
For HEMI-powered 3500 over 10K CVWR, 4500 and 5500 Chassis Cab models, Ram utilizes the TorqueFlite HD 8-speed automatic transmission, Ram’s way of saying its a ZF Powerline transmission. HEMI-equipped models use the 8AP430 variant, while Cummins-powered 3500, 4500, and 5500 models feature the 8AP850 variant, designed to manage the higher torque output of the diesel engine. Both versions of the TorqueFlite HD transmission include wide gear ratios that enable lower cruising engine RPMs for improved fuel efficiency without sacrificing performance. The design enhances towing and hauling on graded roads, delivering smooth shifts and exceptional drivability even under demanding conditions.
Additionally, the new electronic column shifter, standard across the lineup, enhances driver convenience and supports upfitter-friendly cabin configurations by reducing clutter and allowing seamless integration of vocational equipment. Engineered for durability, both the 8HP75-LCV and TorqueFlite HD transmissions are built to handle the rigorous demands of heavy-duty applications, ensuring the Ram Chassis Cab lineup is ready for any job site challenge.
Heavy-Duty Capability –
The 2025 Ram Chassis Cab trucks excel in both towing and payload capacities:
- Maximum Towing: Up to 34,540 pounds on the Ram 5500.
- Maximum Payload: Up to 11,960 pounds on the Ram 5500.
These impressive figures are complemented by industry-leading upfitter-friendly features, making these trucks indispensable tools for commercial operators.
Built for Upfitters and Operators Alike –
The 2025 Ram Chassis Cab trucks are engineered for maximum customization, providing businesses and fleet owners with the flexibility to tailor their vehicles to specific needs. These models feature key design elements that simplify the integration of specialized equipment, including industry-standard cab-to-axle lengths, clear rear frame rails, and through-the-frame plumbing and electrical solutions. The new power take-off (PTO) capability supports both left- and right-side operation, while an onboard power inverter and vehicle system interface module (VSIM) enhance equipment integration.
Key customization features of the 2025 Ram Chassis Cab trucks include:
- Industry-standard cab-to-axle lengths for easy upfitting
- Clear rear frame rails to accommodate diverse aftermarket equipment
- Through-the-frame plumbing and electrical solutions for efficient installation
- A relocated diesel exhaust fluid (DEF) fill port for improved accessibility
- Advanced integration tools like the VSIM, offering over 70 inputs and outputs to streamline aftermarket installations
Designed to support a wide range of applications, the 2025 Ram Chassis Cab makes it easier than ever to adapt the truck for specific business needs, from construction to emergency services.
Advanced Technology and Safety Features –
Inside, the Ram Chassis Cab lineup introduces the Uconnect 5 system with a 12-inch touchscreen (an 8.4-inch Uconnect 5 system is standard for 2025), wireless phone charging, and enhanced safety technologies like adaptive cruise control, forward collision warning, and drowsy driver detection. The available digital rearview mirror and trailer-tow features further enhance visibility and convenience.
Trims –
For the 2025 lineup, the Ram 2500 has undergone a revamp. The Tradesman will continue as the entry-level model, while the mid-level SLT trim has been rebranded as the Big Horn, aligning it with the Heavy Duty pickup truck lineup. Laramie and Limited trims are expected to join later in the year. However, at launch, the Tradesman and Big Horn will be the only available options.
Pricing and Availability –
The 2025 Ram Chassis Cab trucks, built in Saltillo, Mexico, start at $49,285 for the Ram 3500 model. The 4500 and 5500 models are priced at $55,660 and $56,770, respectively, including destination charges. These trucks are set to arrive in dealerships in Q1 2025.
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