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Ram 2500/3500 Heavy Duty DT (5th Generation HD)

2019–2026 · DT · truck

Redesigned for 2019 alongside the DT 1500. Engines: 6.4L HEMI V8 (410hp) standard, plus three Cummins 6.7L turbodiesel inline-six tunes — Standard Output (370hp/850 lb-ft), High Output (400hp/1,000 lb-ft), and from 2021 the 3500 HO at 420hp/1,075 lb-ft (the highest torque rating of any production pickup). Massive interior tech overhaul including the 12-inch portrait touchscreen. Chassis-cab 4500/5500 variants continue.

Watch out: Bosch CP4.2 high-pressure fuel pump failure on Cummins-equipped trucks — when the CP4 fails, it sends metal debris through the entire fuel system, requiring a $10-15k repair (injectors, lines, tank, pump). A class-action settlement covered some affected trucks. HEMI 6.4L cars share the family-wide MDS lifter failure. Aftermarket S&S CP3 conversion kits are common owner upgrades on diesel trucks.

What your 2500/3500 Heavy Duty takes

The parts and fluids that fit this generation. Specs we publish are confirmed against two independent sources; the rest fill in as we verify them.

  • Tire size245/70R17✓ VerifiedView
  • Wiper blades22" driver · 22" passenger✓ VerifiedView
  • Engine oilNot catalogued yetFind yours soon
  • Oil filterNot catalogued yetFind yours
  • Engine air filterNot catalogued yetFind yours
  • Cabin air filterNot catalogued yetFind yours
  • Spark plugsNot catalogued yetFind yours soon
  • Headlight bulbsNot catalogued yetFind yours soon
  • BatteryNot catalogued yetFind yours soon
  • CoolantNot catalogued yetFind yours soon
  • Brake fluidNot catalogued yetFind yours soon
  • Transmission fluidNot catalogued yetFind yours soon
  • Tire pressureNot catalogued yetFind yours soon
  • Key fob batteryNot catalogued yetFind yours soon
  • Power steering fluidNot catalogued yetFind yours soon
  • Differential fluidNot catalogued yetFind yours soon
  • Serpentine beltNot catalogued yetFind yours soon
  • Brake padsNot catalogued yetFind yours soon
  • Wheel fitmentNot catalogued yetFind yours soon
  • Brake rotorsNot catalogued yetFind yours soon
  • ThermostatNot catalogued yetFind yours soon
  • A/C refrigerantNot catalogued yetFind yours soon
  • Fuel filterNot catalogued yetFind yours soon

Full clubhouse — owner Garage Lineage, common problems, year-by-year notes, and product picks — is on the build list.

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