Thanks for adding the correct info.
Generally speaking maybe...it's all in the details. For a new vehicle in California that is mostly true but the rest of the US is 3/36 (2/24 without a manufacturers bumper to bumper) and 80K for many other parts with the DEF tank and control system covered under the 3/36.
A. Parts Covered For Two Years Or 24,000 Miles Federal law requires FCA US LLC to warrant the following emissions parts for two years or 24,000 miles, whichever occurs first. FCA US LLC covers all of these parts under the Basic Limited Warranty for three years or 36,000 miles, whichever occurs first. Ram 1500 — Diesel
• Charge Air Cooler (CAC)
• Crankcase ventilation system
• Electronic fuel injection system, including injectors
• Exhaust Gas Recirculation (EGR) valve and control system
• Exhaust manifold
• Fuel cap, tank assembly, pump, and fuel lines
• Glow plugs • Intake manifold
• Mass Air Flow (MAF) Sensor
• Nitrous oxide sensors
• On-board diagnostic-system components
• Oxygen sensors • Particulate matter sensor
• Throttle body
• Transmission Control Module (TCM)
• Turbocharger
• UREA (DEF) tank and control system
• Vacuum hoses, clamps, and fittings, as well as tubing used for these components
• Vacuum, temperature, altitude, speed, time sensitive valves, sensors, and switches used in these components
B. Parts Covered For Eight years Or 80,000 Miles If your vehicle has one of the following parts, this Federal Emission Warranty covers that part for a period of eight years or 80,000 miles, whichever occurs first, calculated from the start of the Basic Limited Warranty as set forth in “section 2.1 E”. The covered parts are:
• Catalytic Converter
• Powertrain Control Module (PCM)
• Oxidation Catalyst/Particulate Filter Assembly
• Selective Catalytic Reduction Catalyst Assembly