CUMMINS 7.2L Diesel & 6.7L Petrol Engines Coming to 2026 Ram 2500

Two new engines are arriving for the 2026 Ram 2500 and not all of them are equally safe long-term bets.

For the first time, buyers can choose between four very different powertrains, each built around a different philosophy:

Proven durability
Increased capability
Lower emissions pressure
Or reduced operating complexity
In this video, we compare every available 2026 Ram 2500 engine side by side, not by marketing numbers — but by what actually matters once the miles add up.

Engines Covered:
6.7-Liter Cummins Diesel (Current Generation)
7.2-Liter Cummins Diesel (All-New)
6.4-Liter HEMI V8

Cummins-Built Gasoline Engine (New Platform)
What This Comparison Focuses On:
Real-world towing behavior under sustained load
Long-term durability vs first-generation risk
Cooling, emissions, and thermal stress concerns
Service complexity and downtime risk
Ownership costs after warranty expiration

Horsepower alone doesn’t decide whether a heavy-duty truck is a good investment.
Longevity does.
Service access does.
And predictability matters more than promises.

This breakdown explains why proven engines remain safer for long-term owners, and which new engines may only make sense for short ownership cycles or early adopters.

If you’re planning to buy or wait for the 2026 Ram 2500, this comparison shows exactly what you gain and what you risk with each engine choice.

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