If you own a 2019–2024 6.7L Cummins and you've been reading turbo threads or product listings written for 2007.5–2018 trucks, it's easy to order the wrong part. Both generations run a Holset HE300VG variable-geometry turbocharger, so the family name is the same — but the fitment, calibration, and actuator details are not interchangeable. Here's what actually differs, and how to make sure you buy the right drop-in.

Same turbo family, different generation

The HE300VG has been the factory variable-geometry turbo on the 6.7 Cummins since the 2013 model year (2007.5–2012 trucks used the earlier HE351VE — see What Is the HE300VG Turbo? and the HE351VE vs HE300VG comparison for that history). The 2019–2024 trucks carry the HE300VG forward, but on the fifth-generation Ram platform with updated engine calibration and emissions hardware.

What's actually different on 2019–2024

• Calibration and actuator behaviour. The 2019–2024 trucks use updated ECU logic and VGT actuator calibration. A turbo built and calibrated for a 2013–2018 truck is not the correct part for a 2019–2024 application, even though both are "HE300VG."
• Emissions hardware. The 2019–2024 platform carries updated DPF, DEF/SCR, and EGR systems. A proper drop-in retains all of it so the truck stays road-legal.
• HO vs SO split. From 2019 on, the engine is offered as Standard Output (Ram 2500 / 68RFE) and High Output (Ram 3500 / Aisin AS69RC). This affects power levels and towing demand — covered in HO vs SO 6.7 Cummins Turbo Upgrade Differences.

Buy by model year

The simplest rule: buy the turbo listed for your exact model-year range. True North Turbos offers two distinct HE300VG 63mm drop-ins — the 2019–2024 version and the 2007.5–2018 version — because the applications are not the same. If you're unsure which fits your truck, the TNT Turbo Spec Form confirms it.

What carries over

The good news is that the upgrade philosophy is the same across generations: a 63mm 2618 forged milled compressor wheel adds airflow, the variable geometry preserves low-RPM response and the exhaust brake, and installation is a direct bolt-in with no core charge. If you're seeing VGT-related symptoms (low boost, weak exhaust brake, limp mode, codes like P003A) before upgrading, the diagnosis in HE300VG Actuator & VGT Problems applies to the platform generally.

Frequently asked questions

Will a 2007.5–2018 HE300VG turbo fit my 2021 6.7 Cummins?

No. Order the 2019–2024 TNT HE300VG; the calibration and fitment differ from the 2007.5–2018 unit.

Is the 2019–2024 turbo still an HE300VG?

Yes — it's the same Holset variable-geometry turbo family, on the newer platform with updated calibration and emissions hardware.

Do I need to change the actuator?

The TNT drop-in is designed to retain factory-style VGT and exhaust-brake behaviour for the 2019–2024 application; calibrated actuator options are available. Confirm your setup with the Turbo Spec Form.

Does HO vs SO change which turbo I need?

Both HO and SO 2019–2024 trucks are covered by the 2019–2024 TNT HE300VG, but their power and towing demands differ — see the HO vs SO guide.