How big is the fuel tank on a Ram 2500?
The Ram 2500’s fuel-tank size isn’t the same across every version. In general, gasoline models carry about 31 gallons, while diesel versions use about 34 gallons. Always check the exact figure for your specific build from the window sticker or Ram’s official specifications.
Tank sizes by engine and configuration
The following figures reflect typical, widely available configurations and are a useful starting point when estimating range. Exact capacity can differ based on model year and body style.
- Gasoline-powered Ram 2500 with the 6.4L Hemi: typically 31 gallons.
- Diesel-powered Ram 2500 with the 6.7L Cummins: typically 34 gallons.
These figures represent standard tanks for common builds. Variations of a few gallons can occur in niche configurations or packages, so always confirm with the official spec.
Additional notes on configuration and practical impact
Beyond engine choice, the exact tank size can be influenced by cab style (Regular, Crew, or Mega Cab) and bed length. Some configurations may show tiny differences, but the two main benchmarks remain around 31 gallons for gas and 34 gallons for diesel, with occasional minor deviations.
- Most gas-powered crew cab/short-bed builds target roughly 31 gallons.
- Most diesel-powered cabins, regardless of bed length, target roughly 34 gallons.
For precise capacity figures, consult your vehicle’s window sticker or Ram’s official specification pages for your model year and trim.
Summary
In short, the Ram 2500’s fuel tank capacity is not one-size-fits-all. If you drive a gas model, expect about 31 gallons; if you drive a diesel model, about 34 gallons. Always verify the exact figure for your configuration to accurately plan range and fueling needs.
How big is the gas tank on a Ram 2500 diesel?
The standard Ram 2500 diesel fuel tank size is 31 gallons, but an optional 50-gallon tank is available on Crew Cab models with an eight-foot bed for the 2023-2025 model years. Older models, such as those from 2003-2012, had a larger standard tank size of around 35-60 gallons.
- Standard tank: The most common standard capacity is 31 gallons for newer models, while some older models had a larger standard tank (around 35 gallons).
- Optional tank: A larger 50-gallon fuel tank is available on newer Crew Cab models with an eight-foot bed for 2023-2025.
- Older models: For models from 2003-2012, a larger 60-gallon fuel tank was available for Crew Cab, long-bed trucks.
- Availability: The larger tanks are not available on all trims, such as the Power Wagon and Rebel, according to Tacoma Dodge Chrysler Jeep Ram.
How many gallons does a 6.7 l Cummins hold?
A 6.7L Cummins engine typically takes 12 quarts (or 3 gallons) of oil, although the exact capacity can vary slightly by model year. For 2019 and newer models, the capacity is 12 quarts with a filter change, and for older models (2007.5–2018), it is also 12 quarts with a filter change.
- Oil: A 6.7L Cummins engine requires about 12 quarts (or 3 gallons) of engine oil.
- Model year variations: While 12 quarts is the standard for most modern engines, older models may have slightly different capacities, so it's always best to check your owner's manual or use the dipstick to confirm.
- Coolant: The coolant capacity for a 4th generation 6.7L Cummins (2010-2018) is about 5.7 gallons.
- DEF (Diesel Exhaust Fluid): The DEF tank size is 5.5 gallons for 4th generation models (2010-2018).
- Fuel: The stock fuel tank can hold approximately 32 gallons on a 4th generation model, but aftermarket tanks with larger capacities are available.
How many gallons are in a Ram 2500 diesel?
The diesel fuel capacity for a Ram 2500 varies, but it is 31 to 32 gallons for standard configurations and can be up to 50 gallons on Crew Cab models with an 8-foot bed. Some model years also have an optional 50-gallon tank available for those cab/bed combinations, which provides a larger range.
- Standard: The standard fuel tank capacity is around 31 to 32 gallons.
- Optional/Large: An optional, larger 50-gallon fuel tank is available on certain models, such as Crew Cabs with an 8-foot bed.
- Not available on some trims: The 50-gallon tank is not available on Power Wagon or Rebel trims.
How big is the gas tank on a 2018 Ram 2500 6.4 Hemi?
31.0 gal
0/0 mi. 31.0 gal.
