Quick Answer
Stellantis has pushed back the launch timelines for its Ram and Jeep range-extender EVs by several months, citing quality validation and slowing demand for electrified full-size trucks, even as the technology itself remains central to the brand’s future plans.
Auburn Hills: For years, Ram insisted a diesel-powered Power Wagon wasn’t possible, blaming the truck’s standard winch for eating up the cooling space a Cummins engine would need. For 2027, that engineering roadblock has finally been solved, and early testing shows the payoff was worth the wait.
Direct Answer: The 2027 Ram 2500 Power Wagon is now available with a 6.7-liter Cummins High-Output turbodiesel producing 430 horsepower and 1,075 lb-ft of torque, boosting towing capacity to nearly 20,000 pounds and payload to about 2,930 pounds, at a starting price near $88,470.
Key Takeaways
- Ram 1500 Ramcharger and Jeep Grand Wagoneer 4xe launches have both been pushed back by several months.
- Stellantis blames extended quality validation and softening demand for electrified full-size trucks.
- The fully electric Ram 1500 REV has been scaled back in favor of the range-extended Ramcharger.
- Both trucks share a 92-kWh battery, V6 generator setup rated near 663 horsepower.
Table of Contents
What Changed Under the Hood
The new engine is Ram’s 6.7-liter Cummins High-Output inline-six, delivering 430 horsepower and a class-competitive 1,075 lb-ft of torque, paired with a DEF system and a 3.42:1 axle ratio. Getting there required reworking the front-end plumbing, since the Power Wagon’s standard winch had historically made it too tight to fit the diesel’s cooling hardware; Ram says a winch-plus-diesel combination could still arrive later if engineers solve the packaging puzzle.

Capability Nearly Doubles
With the Cummins diesel, the Power Wagon’s towing capacity jumps to nearly 20,000 pounds and payload rises to roughly 2,930 pounds, compared with about 10,590 pounds of towing and 1,690 pounds of payload on the standard 6.4-liter V8 gas model.
A 31-to-34-gallon fuel tank (depending on source figures) gives the diesel Power Wagon an estimated range around 600 miles per fill, according to Ram, while a new load-leveling rear air suspension option makes it easier to keep the truck settled when hauling heavy loads. Ram’s HD diesel rivals — the Chevrolet Silverado 2500HD ZR2 with its Duramax and the Ford F-250 Tremor with its Power Stroke — still edge out the Power Wagon on raw torque (975 and 1,200 lb-ft respectively), but Ram counters with genuine off-road hardware the others can’t fully match.
| Spec | 2027 Power Wagon Diesel | Standard Gas V8 |
|---|---|---|
| Engine | 6.7L Cummins HO turbodiesel | 6.4L V8 |
| Horsepower | 430 hp | 405 hp |
| Torque | 1,075 lb-ft | 429 lb-ft |
| Max towing | ~19,630–20,000 lb | ~10,590 lb |
| Max payload | ~2,930–3,000 lb | ~1,690 lb |
| Starting price | ~$88,470–$89,560 | Lower base price |

Where It Stands Against the Competition
On paper, the Power Wagon’s diesel torque figure trails both the Silverado 2500HD ZR2’s Duramax (975 lb-ft) and the F-250 Tremor’s Power Stroke (1,200 lb-ft), which means Ram arrives to this fight last and, by some measures, least powerful on torque. But the Power Wagon’s advantage has never been about outright numbers — it’s about the combination of genuine 4×4 off-road hardware, locking front and rear differentials, and a disconnecting sway bar that its diesel-powered HD rivals still can’t fully replicate in factory form. Testers note that this balance of trail capability and newfound towing muscle is what makes the diesel Power Wagon feel like a genuinely new proposition rather than just an engine swap.
Also Read : 2027 Lexus NX Facelift Drops Gasoline-Only Trim, Goes Hybrid Exclusive
AutoAkhbar Verdict
Ram waited a long time to give the Power Wagon a diesel, and the numbers suggest it was worth the engineering headache. Buyers who need serious towing muscle without giving up genuine trail capability finally have a Power Wagon that can do both — the trade-off is a sizable jump in starting price once the diesel and towing option groups are added in, with some configurations pushing past the six-figure mark. For the truck’s core off-road audience, though, that premium is likely to feel justified rather than excessive.
Source Name : Car and Driver
FAQ Ram Power Wagon 2500
What is the Ram 1500 Ramcharger’s powertrain?
It uses a 3.6-liter Pentastar V6 that acts only as an onboard generator, paired with a liquid-cooled 92-kWh battery and dual electric drive motors producing up to 663 horsepower.
Why did Stellantis delay these extended-range trucks?
The company has cited an extended quality-validation period along with slowing consumer demand for electrified full-size trucks in the US market.
Is the Ram 1500 REV still coming?
The fully electric Ram 1500 REV has faced repeated delays and scaled-back plans as Stellantis shifts priority toward the range-extended Ramcharger.
Will the Jeep Grand Wagoneer 4xe use the same technology as the Ramcharger?
Yes, reports indicate the Grand Wagoneer 4xe is expected to share the same range-extending hybrid architecture as the Ram 1500 Ramcharger.



