2026 Ram 3500 Engine Options
If you’re shopping for a heavy-duty truck and evaluating the 2026 Ram 3500, understanding the engine options is essential.
From the standard gas V8 to the high-output diesel, each powertrain affects your towing limits, durability, and cost of ownership.
This guide will break down each engine available in the Ram 3500, compare their specs side-by-side, explore transmission and performance details, and help you decide which one fits your workload best.
For deeper analysis and towing comparisons, see TruckReportGeeks.com’s heavy-duty engine breakdown.
⚙️ Engine Options Comparison Table
| Engine | Horsepower | Torque |
|---|---|---|
| 6.4 L HEMI® V8 Gas | 405 hp | 429 lb-ft |
| 6.7 L Cummins® Turbo Diesel I6 (High-Output) | 430 hp | 1,075 lb-ft |
🔧 Engine Performance & Transmission
The base engine for the 2026 Ram 3500 is a 6.4-litre HEMI® V8 gas unit, delivering 405 hp and 429 lb-ft of torque — well suited for moderate towing and general-purpose heavy-duty use.
The available upgrade is a 6.7-litre Cummins® Turbo Diesel inline-six (High-Output), delivering 430 hp and a massive 1,075 lb-ft of torque — built for serious jobs, long-haul towing, and high-capacity hauling.
Both engines are paired with heavy-duty transmissions tuned for the job — the diesel model uses the TorqueFlite® HD eight-speed automatic transmission to manage full load demands.
🚚 Gas vs Diesel — Which Should You Choose?
Gas Engine (6.4 L HEMI® V8):
- Lower initial cost and simpler maintenance.
- Excellent for general use, lighter trailers, and fewer high-hour duty cycles.
- Suitable if you tow occasionally or run a mixed-use fleet.
Diesel Engine (6.7 L Cummins® Turbo Diesel I6):
- Much higher torque, ideal for heavy trailers, fifth-wheels, and sustained duty.
- Better suited for long loads, high hours, and demanding work environments.
- Higher upfront cost, sometimes higher maintenance complexity, but strong long-term durability.
If your operation regularly involves heavy towing (for example over 20,000 lbs) or heavy payloads, the diesel is likely the smarter long-term choice.
For moderate duty, the gas V8 can still deliver strong performance with lower cost of ownership.
📏 Engine Specification Highlights
| Engine | Fuel Type | Optimal Use Case |
|---|---|---|
| 6.4 L HEMI® V8 Gas | Gasoline | Jobs with moderate towing, mixed duty, frequent stops |
| 6.7 L Cummins® Turbo Diesel I6 High-Output | Diesel | Heavy-haul trailers, frequent long-tows, high durability demands |
🛠 Maintenance, Fuel Economy & Long-Term Planning
Diesel engines like the 6.7 L Cummins require additional maintenance elements (e.g., DPF/DEF systems, high-grade oil changes) but are built for long life under load.
Gas engines are simpler and typically cost less to maintain but may wear faster if used at their limits routinely.
Fuel economy in heavy-duty trucks is highly variable and depends on load, trailer, terrain and speed — choose the engine that matches your most frequent duty cycle to get optimal value.
❓ FAQs
What engine options are available for the 2026 Ram 3500?
The choices are a 6.4 L HEMI® V8 gas engine and a 6.7 L Cummins® Turbo Diesel I6 High-Output engine.
Which engine provides the most torque?
The 6.7 L Cummins Turbo Diesel High-Output delivers up to 1,075 lb-ft of torque.
Is the gas V8 suitable for towing?
Yes — the 6.4 L HEMI® V8 provides strong performance (405 hp / 429 lb-ft), particularly in moderate-load scenarios.
How does engine choice affect towing capacity?
Engine choice is a major factor — the diesel’s higher torque enables the truck’s maximum towing figures (up to 36,610 lbs) in certain configurations
Are there any major differences between the 2025 and 2026 model years in engine lineup?
The 2026 Ram 3500 continues with the same engine options as the previous year.
🏁 Conclusion
The 2026 Ram 3500 offers serious engine options — one built for general heavy-duty use (6.4 L HEMI® V8 gas), and one built for top-tier capability (6.7 L Cummins® Turbo Diesel I6 High-Output).
Choosing the right engine depends on how much you tow, how often you haul, and what conditions you operate in.
If your workload involves frequent heavy towing and payloads, the diesel is the clear choice.
If you use the truck for mixed duty with occasional heavy loads, the gas V8 offers strong value and capability.
👍 If you found this helpful, please like and comment below — and visit TruckReportGeeks.com for detailed towing charts, engine comparisons, and truck-buying insights.