When equipped with the 6.7L High-Output Cummins Turbo Diesel engine and a dual-rear-wheel configuration, the Ram 3500 HD commands a staggering maximum towing capacity of up to 37,090 lbs and a Gross Combined Weight Rating (GCWR) reaching 43,000 lbs. Conversely, the 2025 Ram ProMaster 3500 High Roof excels in spatial productivity, yielding up to 524 cubic feet of lockable interior volume, a massive maximum payload rating of up to 4,680 lbs, and an exceptionally low load-floor height of just 21 inches. Browsing our Commercial Vehicle Inventory gives local business owners direct access to both of these heavy-hitting commercial platforms.

For agricultural operations, heavy excavation contractors, and utility construction crews operating in unpaved pastures or remote utility easements, a Ram 2500 or 3500 4×4 Diesel is practically indispensable. The mechanical shift-on-the-fly four-wheel-drive transfer case, heavy-duty solid front axle, and available rear limited-slip or electronic locking differentials provide the necessary tractive force to pull loaded livestock trailers or heavy equipment out of slick mud and steep inclines. Furthermore, the Cummins diesel’s standard smart exhaust brake uses variable geometry turbocharger technology to control down-hill speed safely without overheating brake pads.

Conversely, for municipal contractors, HVAC service companies, dry-wall installers, and urban delivery routes operating within Junction City, Manhattan, or Salina, the 2025 Ram ProMaster 3500 High Roof provides superior operational efficiency. Its front-wheel-drive system keeps drive components tucked under the cab, providing excellent front tire traction over icy asphalt when the cargo box is loaded. Furthermore, the lower overall vehicle height compared to a lifted 4×4 truck with a high service body simplifies parking inside commercial garages and residential driveways. Operators can easily stop by to visit our dealership or Get Directions to Valor CDJR to test drive both vehicle formats back-to-back.

Choose a Ram 2500 / 3500 Cummins Diesel if your business operations demand:• Towing Trailers Exceeding 7,000 lbs: If your daily routine involves pulling heavy tandem-axle trailers, equipment tilt-beds, or gooseneck cattle trailers, the Cummins diesel’s 850 to 1,075 lb-ft of torque and rigid ladder frame are mandatory. • Off-Road & Severe Winter Traction: For unpaved agricultural land, job sites with deep mud, or rural snow clearing, the Ram HD’s mechanical 4×4 drivetrain and high ground clearance are essential. • Heavy Tongue Weights & Pin Loads: When carrying heavy bed slide loads, auxiliary fuel tanks, or high vertical hitch loads, the Ram 3500 dually provides unmatched stability. Choose a 2025 Ram ProMaster 3500 High Roof if your business operations demand:• Maximum Enclosed Cargo Space: With 524 cu ft of secure, weatherproof interior volume, the ProMaster stores bulky cargo, long pipes, or pre-built cabinetry with ease. • Walk-In Interior Workbench Functionality: Technicians standing 6-foot-4 can walk fully upright inside the van to access modular shelving and complete assembly work on-site. • Rapid Urban Parcel Delivery & Low Load Heights: The 21-inch floor height drastically lowers physical exertion during multi-stop delivery routes in Junction City and Manhattan. If you have questions about current pricing or vehicle availability, feel free to Call us at (785) 238-5114 to speak directly with a commercial vehicle consultant.

Cummins Turbo Diesel Maintenance Guidelines:• Dual Fuel Filter Replacements: The 6.7L Cummins utilizes two separate fuel filters—an engine-mounted filter and a chassis-mounted water separator. Both must be replaced every 15,000 miles to protect ultra-high-pressure fuel injectors from water contamination and microscopic debris. • Engine Oil & Filter Services: Perform oil changes every 7,500 to 15,000 miles (or 500 hours) using high-grade CJ-4/CK-4 15W-40 or 5W-40 synthetic engine oil calibrated for low-SAPS emissions compliance. • DEF System & Exhaust Brake Care: Maintain clean Diesel Exhaust Fluid (DEF) to protect SCR catalysts, and exercise the smart exhaust brake regularly to prevent variable geometry turbocharger vanes from carbon sticking. Ram ProMaster Pentastar V6 Maintenance Guidelines:• Routine Oil & Filter Services: Replace engine oil and filter every 7,500 miles using MS-6395 compliant 5W-20 synthetic motor oil. • Transmission & Cooling System Checks: Inspect 9-speed fluid levels and flush engine coolant at recommended 100,000-mile intervals to ensure smooth shifting under continuous heavy payload loads. • Brake & Tire Management: Because FWD vans place front tires under acceleration and steering loads, perform tire rotations every 6,000 miles and inspect front brake pads regularly. At Valor CDJR, our dedicated commercial service center features heavy-duty lifts, high-clearance service bays, and factory-trained Chrysler, Dodge, Jeep, and Ram Master Technicians who understand the urgency of fleet turnaround times. Schedule your next commercial fleet service online using our convenient Service Scheduler.