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5th Gen 6.7 Cummins | 2019 – 2024

2019-2024 6.7 Cummins Performance Parts | Fifth Gen Ram

HE300VG turbo upgrades, the HE366VG high-flow upgrade, and the 5G exhaust manifold for the 2019-2024 6.7L Cummins - engineered by Diesel Power Source.

The 2019-2024 5th gen 6.7L Cummins is the most powerful Cummins ever built from the factory, producing up to 1,075 lb-ft of torque in High Output trim. The 5th gen uses a completely redesigned lower-mount turbo position and a proprietary 5G exhaust flange that is different from all previous generations. DPS builds HE-series replacement and upgrade turbos, the 5G exhaust manifold, and turbo-and-manifold kits specifically engineered for this platform.

The factory HE300VG turbo is a solid unit at stock power levels, but it runs out of airflow on tuned trucks and is prone to the same actuator and sticking vane issues that affect all HE300VG-equipped generations. DPS offers direct replacement and upgrade turbos that bolt into the 5th gen lower-mount position with no modifications, plus the 5G high-flow exhaust manifold that delivers over 75% more flow than factory.

5th Gen Specific Fitment

Engineered for the unique lower-mount turbo position

Cooler EGTs

Upgraded turbos and manifold reduce exhaust temps under load

Emissions Compatible

All 5th gen DPS products work with factory emissions

Up to 650 HP

HE366VG flows 35% more air than stock HE300VG

DPS Products for 2019-2024 6.7 Cummins

  • HE300VG Replacement Turbo - Direct factory replacement for 2019-2024. Fixes actuator failures and sticking vanes. Stock-400 HP. Emissions compatible.
  • HE363VG Upgrade Turbo - 63mm DPS upgrade compressor. More airflow than stock with direct bolt-in fitment. Stock-550 HP. Emissions compatible.
  • HE366VG Upgrade Turbo - 66mm DPS upgrade. Flows approximately 35% more air and exhaust than stock. Best current single turbo option for 5th gen. 425-650 HP. Emissions compatible.
  • 5G Exhaust Manifold - 2-piece HSMD ductile iron, over 75% more flow than factory. Engineered for the 5th gen lower-mount turbo position. Emissions compatible.
  • 5th Gen Turbo and Manifold Kit - HE-series turbo + 5G manifold as a matched system. Complete bolt-on upgrade.
  • Multi Layer Manifold Gasket Kit - 2019-2024 specific. Turbocharger mounting gasket also available.

2019-2024 6.7 Cummins Platform Specifications

  • Engine code: ISB 6.7L (408 cubic inches), 24-valve common rail
  • Fuel system: Bosch high-pressure common rail, CP4.2 injection pump
  • Factory power: 370 HP / 850 lb-ft (Standard Output), 400-420 HP / 1,075 lb-ft (High Output)
  • Stock turbo: Holset HE300VG variable geometry turbocharger
  • Exhaust flange: 5G (proprietary lower-mount, different from T4i on 2007.5-2018)
  • Chassis: Ram 2500/3500 fifth generation (2019-2024)
  • Transmissions: 68RFE 6-speed automatic (SO) or Aisin AS69RC 6-speed automatic (HO standard, SO optional)
  • Emissions: EGR, DPF, DEF/SCR with advanced controls

How to Choose the Right Upgrade for Your 5th Gen

Stock Replacement

HE300VG direct replacement - fixes actuator failures, sticking vanes, P003A and P2262 codes. Same factory specs, new turbo. Maintains exhaust brake and all emissions. Best option if your stock turbo has failed and you want to restore factory performance.

Performance Upgrade

HE363VG or HE366VG upgrade - larger DPS compressor and turbine wheels in the same factory housing. More airflow, measurably cooler EGTs, improved throttle response. The HE366VG flows approximately 35% more air than stock and is the best current single turbo option for 5th gen builds up to 650 HP.

Manifold Upgrade

5G Exhaust Manifold - over 75% more flow than factory. 2-piece HSMD ductile iron with expansion joints resists cracking. Pairs with any HE-series turbo for a complete intake-to-exhaust airflow improvement. Best results when combined with a turbo upgrade.

5th Gen Fitment Notes

  • 5th gen uses a unique lower-mount turbo position - different from 2007.5-2018
  • 5G exhaust flange is NOT interchangeable with T4i (2007.5-2018)
  • All DPS 5th gen products are emissions compatible
  • All DPS 5th gen products maintain factory exhaust brake

Common 5th Gen Issues DPS Products Solve

  • HE300VG actuator failures and sticking vanes
  • P003A, P2262, P00AF, and P0299 turbo codes
  • High EGTs under towing load
  • Factory turbo running out of airflow on tuned trucks

Helpful 6.7 Cummins Guides

Ready to upgrade? Browse 5th Gen HE-Series Turbos, 5G Exhaust Manifold, or call 801-930-8404 for help choosing the right upgrade.

Dodge / Ram Cummins 5th Gen (2019–2024) FAQs

The 5th gen represents the most significant leap forward in Cummins history.

Major improvements over 2013-2018:

  • Massive torque increase: 1,075 lb-ft in HO trim (up from 930 lb-ft). Most powerful production Cummins ever.
  • Stronger internals: Forged pistons, enhanced rods, beefed-up block to handle extreme factory torque
  • Advanced ECM: Most sophisticated programming ever; responds incredibly well to tuning
  • Larger turbo option: HO models get HE400VG (vs. HE300VG); better flow from factory
  • Redesigned chassis: Completely new 5th gen Ram body; best ride, quietest, most comfortable
  • Better emissions: Even more advanced DEF/SCR; cleaner, more efficient

Why 2019-2024 is ultimate platform:

  • Highest power ceiling of any Cummins (1,000-1,200+ HP achievable)
  • Strongest factory components mean less internal work needed
  • Best transmission options (Aisin standard on HO)
  • Most refined for daily driving (quietest, smoothest, best tech)
  • Advanced ECM unlocks incredible tuning potential

Latest 6.7L supports all turbo options; HO baseline already strong.

HE400VG VGT upgrade (keep all factory features):

  • Turbonator® HE400VG or enhanced VGT: Upgraded variable geometry
  • Power range: 550-650 HP reliably
  • Benefits: Keeps exhaust brake, tow/haul, emissions compatibility, 150-225°F cooler EGTs
  • Best for: Daily drivers, heavy towing, emissions compliance, want factory features
  • Note: HO models already have excellent HE400VG; upgrade provides refined improvements

S300 fixed-geometry singles:

  • S366, S369, S372: For 600-750 HP
  • Benefits: Quick spool, 200-250°F cooler EGTs, no VGT complexity, strong midrange
  • Limitation: Lose exhaust brake and VGT features
  • Best for: Performance builds, don't need exhaust brake, want simplicity

S400 singles (serious power):

  • S475, S480, S483: For 750-900 HP
  • Benefits: Massive airflow, handles extreme fueling, competition-ready
  • Limitation: Lag below 2000 RPM; dedicated use recommended
  • Best for: Drag racing, sled pulling, dyno queens

Compound turbo systems (ultimate):

  • S300/S400 or S400/S400: For 800-1,100+ HP
  • Benefits: Zero lag, 250-300°F cooler EGTs, insane power that's drivable daily
  • Best for: Extreme towing (35k+ lbs), competition, ultimate street trucks
  • Advantage: Latest 6.7L + Aisin + compounds = most capable combo possible

EGT improvements: 150-300°F; critical with massive factory torque.

Stock HE400VG baseline (HO with aggressive tune):

  • Towing 25,000 lbs up 6% grade with 600 HP tune: 1,175-1,275°F
  • HE400VG better than earlier turbos but still restrictive at high power

After Turbonator® HE400VG or enhanced VGT:

  • Same load, same tune: 1,025-1,125°F (150-200°F cooler)
  • Improved design and flow = significant thermal improvement
  • Keeps exhaust brake for safety

After S369 or S372 fixed-geometry single:

  • Towing 28,000 lbs, 650 HP: 1,000-1,100°F (175-275°F cooler)
  • Excellent airflow capacity = clean combustion, safe temps

After S300/S400 or S400/S400 compounds:

  • Towing 32,000 lbs, 800+ HP: 950-1,050°F (225-325°F cooler)
  • MORE load, MORE power, yet dramatically cooler operation
  • This is why compounds dominate serious 5th gen builds

Why EGT control critical for latest 6.7L:

  • 1,075 lb-ft factory torque = enormous fuel delivery even stock
  • High cylinder pressures at elevated EGTs stress head gasket severely
  • Turbo upgrade essential for safe power increases beyond 600 HP
  • Lower EGTs dramatically extend all component life

Safe EGT guidelines for 2019-2024 6.7:

  • Cruising: Under 975°F ideal
  • Towing: 975-1,125°F acceptable
  • Max short bursts: 1,225°F for passing (brief)
  • Danger zone: Sustained 1,275°F+ risks damage

These codes are generated by the 6.7L Cummins VGT turbocharger system when the ECM detects a problem with vane position control or boost production. P003A means the actuator exceeded its position limit — it couldn't move the vanes to where the ECM commanded. P2262 means boost was not detected when the engine expected it, pointing to an actuator problem, stuck vanes, boost leak, or physical turbo damage. P226C is the most misunderstood of the three — it simply means the actuator relearn was never completed, which is extremely common after any turbo or actuator replacement. Before replacing parts, confirm which code is present and follow the correct diagnostic path for that specific code.

If P226C is the primary code — especially after a recent turbo or actuator replacement — start with the relearn procedure before replacing anything. Using a scan tool with bi-directional Cummins VGT support, command the actuator through its full range of travel to teach the ECM its endpoints. If P003A or P2262 is present without a recent parts replacement, use the scan tool to command the actuator to 0% and 100% while monitoring actual position feedback. If the actuator responds sluggishly, stalls, or can't reach the commanded position, it needs replacement. If it responds correctly but boost is still low, the problem is elsewhere — boost leak, exhaust manifold crack, or internal turbo wear.

Several non-turbo issues can trigger P2262 and P0299 on the 6.7L Cummins. Cracked intercooler boots and loose charge air clamps are among the most common — a significant boost leak prevents the system from building detectable pressure regardless of how well the turbo is functioning. A cracked exhaust manifold reduces drive pressure at the turbine inlet, limiting how much boost the turbo can generate. Failed intercooler end tanks and split intake tubes are also worth checking. Always pressure test the full charge air circuit before condemning the turbo or actuator

If your truck has under 150,000 miles and an isolated actuator failure, a quality actuator replacement and relearn is a clean, cost-effective fix. For high-mileage trucks or those with repeated VGT issues, upgrading to the Turbonator® VGT delivers improved reliability, better performance, and a more durable actuator in a direct bolt-in package-all while keeping exhaust brake and emissions compatibility intact. For deleted trucks or builds targeting higher power, the DPS 3rd Gen Swap Kit eliminates the VGT system entirely with a proven fixed-geometry S300 setup.

While you have the turbo system accessible, check the turbo oil feed and drain lines for restriction or clogging — degraded oil supply is a leading cause of turbo bearing failure. Inspect the coolant lines at the turbo for cracking and leaks. Check the downpipe for cracks that allow exhaust to escape before the aftertreatment system. Addressing these items at the same time as the turbo repair prevents repeat failures and avoids returning to the same job later.

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