Have you been looking for an unbiased answer regarding 6.7 Cummins vs 6.7 Powerstroke? We’re here to help you out with this sub. You might not have yet found any deep-in technical comparison between these two engines. Here you’ll get to know the pros and cons of both of them, and in light of those facts, which one will last longer and is more reliable.
As we know, your pick-up truck’s engine constrains its performance. Ford and ram are two different brand. So, when searching for a high-powered turbo diesel engine, the 6.7 Cummins I6 and Powerstroke V8 are the two most sought-after engines at present.
6.7 Cummins Overview
Top Features
- Transmission with power steering Front Shock Absorbers with Heavy Duty
- Heavy-Duty Shock Absorbers Located in the Rear
- 32-gallon gasoline tank
- 4-Wheels Disc Lock Resistance Brakes
- Ready-Alert Enabled Braking System
- Wiring Harness, 7-Pin
- Automated Range Select
- New Generation Engine Control system
- Electrically Operated Throttle
- Angle Steering Column
- Tip start
- 4-Pin Connection Wiring Trailer-Tow
Cummins has been in the engine design business for more than a century. When it debuted its 5.9-liter, six-cylinder diesel engine, Cummins was the initial company to deploy a turbocharger. To develop the 5.9-liter Turbo Diesel, Ram and Cummins collaborated in 1989.
Their engines remain stronger as the collaboration continues after thirty years. In an effort to lessen its impact on the environment, such as carbon emissions and noise, the 6.7-liter version replaced it in 2007. Also, you will find this engine in Dodge pickups and Nissan Titans.
Compared to its predecessors, the Cummins 6.7 liter Turbo Diesel features increased power and torque. This is the most robust engine for RAM 3500 and 2500 pickup trucks. You can select any High Output or Standard Output variants based on the requirement.
Available within RAM 3500, the High-Output fit-out with Aisin gearbox also features:
- 429 Horsepower
- 1075 lb-ft Torque
- 107 mm Bore
- 124 mm Stroke
- 16.2:1 Compression Ratio
- 1070 lbs
Slightly different from the High-output, the Standard output features:
- 370 Horsepower
- 850 Torque
- 107mm Bore
- 124 mm Stroke
- 19:1 Compression Ratio
- 1071 lbs Engine Weight
6.7 Powerstroke Engine Overview
Top Features
- Trailer Hitch Sensor (DRW)- 3 inch Ford Built Tough
- a dual 332 amp alternator set
- Wide track Mono-Beam Extended F-450 Axle equipped Front Suspension
- AdvanceTrac with RSC (Roll Stability Control)
- Sway Control for Trailers
- 48-Gallon Fuel Tank
- Front stabilizer Bar
- SEIC (stationary Elevated Idle Control)
- Steering Power and Damper
- Combined Controller for Trailer Brake
The 6.7 Powerstroke diesel engine has brought a new turnover in the present diesel industry. Complied with updated emissions regulations, this engine is a highly rugged and capable option.
This powerful engine is intended for the Ford F-Series to boost both power and performance. With additional upgradation, this engine is the first one designed by Ford without any assistance from International Navistar.
The engine comes modified with a new variable geometry turbo, redesigned injection system, improved cylinder configurations, and a double cooling unit with temperature circuits.
Everyone was curious to see what Ford would offer when Cummins released the improved version of the 6.7 Diesel engine. The 3rd generation of 6.7 Powerstroke by the legendary carmaker Ford was a huge success, followed by the specifications:
- 475 Horsepower
- 1050 Torque
- 99 mm Bore
- 108 mm Stroke
- 15.8: 1 Compression Ratio
- 1,100 lbs (when wet), 990 lbs (when dry)
6.7 Cummins vs 6.7 Powerstroke: Detailed Comparison
Though both the 6.7 liter diesel engines are powerful, they have particular characteristics. However, 6.7 Cummins has earned its place, yet 6.7 Powerstroke is also versatile. Let’s see which engine is the superior workhouse or all-round performer.
| Specifications | 6.7 Cummins | 6.7 Powerstroke |
| Engine | 6.7 liter Cummins Turbo Diesel- 16 | 6.7 liter Powerstroke Turbo Diesel V8 |
| Horsepower | 370-HP | 475-HP |
| Torque | 850 lbs- ft. | 1,050 lbs- ft. |
| Maximum Payload | 7850 lbs | 6840 lbs |
| Firing Order | 1 -5- 3 -6-2 -4 | 1-3-7-2-6 -5 -4 -8 |
| Stroke x Bore | 124 x 107 mm | 108 x 99 mm |
| Injection | CP3 Bosch High Pressure Common Rail System 29,000 PSI | CP4.2 Bosch High Pressure Common 30,000 PSI 2011 – 2019, 36000 PSI 2020(+) |
Reliability longevity of any automobile engine is always measured by several factors. Below , here is the list and discuss in detailed.
- Torque of the engine
- Towing capacity
- MPG
- Horsepower
- Performance
01. Torque Production
Due to the ability to pull heavy loads, diesel engine trucks are popular. The torque output from diesel trucks is much higher than gas-powered vehicles. And as a result, they can pull heavy items such as trailers, boats, campsites, and more.
However, the amount of torque generated by PSD (Powerstroke Diesel) and CTD (Cummins Turbo Diesel) engines differ by model. And in some cases, it depends on the truck. For example:
- Ram HD 6.7 liter Cummins Turbo Diesel – 930 lbs- ft. Torque
- Ford Super-duty 6.7 liter Powerstroke Diesel- 935 lbs- ft. Torque
02. Towing Capacity
Though both engines have outstanding towing capabilities, several subtle differences exist. The maximum towing capacity of the 6.7 Powerstroke is 15,000 lbs. Although based on the specific truck model and other considerations, this value can be affected. The following are examples of what can be towed by a Ford F-Series truck:
- 18,200 lbs by Ford 2020 F-250
- 21,200 lbs by Ford 2020 F-350
- 24,200 lbs by Ford 2020 F-450
To put a number on the payload capacity it can carry:
- Ford 2020 F-250 can carry up to 4,160 lbs
- Ford 2020 F-350 can carry up to 7,850 lbs
- Ford 2020 F-450 can carry up to 6,120 lbs
Moreover, the additional features of 6.7 Powerstroke help you to tow confidently, such as Advancetrac along with RSC (Roll Stability Control) and Sway Control for Trailer, a monitoring system for tire pressure of trailer, trailer backup assistance, remote release for the tailgate and guidance for reversing the trailer.
Similarly, based on the build and model, the capacity of 6.7 Cummins for towing varies. Towing capacities of this diesel engine include:
- Maximum 19,680 lbs towing capacity for RAM 2500
- Maximum 37,100 lbs towing capacity for RAM 3500
In terms of the payload, they provide the following:
- 2500 RAM : Maximum 3,160 lbs
- 3500 RAM: Maximum 6,570 lbs
Cummins Diesel engine paired with high-output version of RAM 3500 have highest towing capacity.
03. Savings On Fuel
While using your vehicle for work, there may be other priorities than getting a fuel-efficient diesel engine. But in the long run, it’s money-saving. Fortunately, to get fuel efficiency with a diesel engine, there’s no need to give up power.
With a fairly impressive fuel economy, you should get roughly 19.2 rather good mpg. However, this figure is to change based on the cargo weight and specific vehicle type.
In an empty situation, the fuel economy may reach 22.5 mpg while dropping to 11.2 mpg at fully loaded. Also, it allows using B20 biodiesel fuel (maximum 80% petroleum diesel and 20% biodiesel) to reduce pollution.
Moreover, the 6.7 Cummins engine’s gas mileage varies by trim level and model. You can expect to get 12 mpg inside the urban area and on the expressway 18 mpg. When fully loaded, it will drop down to about 11.2 mpg. And, while empty, it will climb to about 14.2 mpg.
If you often haul on an empty load and want to save money at the gas station, choose a 6.7 Powerstroke rather than a 6.7 Cummins.
04. Horsepower
Lifting and loading both benefit greatly from increased horsepower. As a result, the vehicle can reach highway speeds more quickly. Power output from 6.7 Powerstroke diesel engines has often been higher than that of 6.7 Cummins Turbo diesel engines.
Overall, PSD engines have higher horsepower than CTD engines, and the latest engines do not differ. About 400 horsepower comes from the 6.7 CTD, while the 6.7 PSD generates 450 horsepower.
05. Performance
The Powerstroke 6.7 engine comes with the distinctive feature of a solo sequential turbocharger. In this configuration, there are two compressors, and the same as the twin-turbo form, it includes a standard shaft and dual compressor.
This innovative turbocharger layout allows the 6.7 Powerstroke engine to produce 1,800 rpm with 1050 lbs-ft torque and 475 lbs-ft HP at 2,750 rpm. Cummins’ output of 400-HP at 2,800-rpm and 1,000 lbs-feet torque at 1,800-rpm falls below expectations.
Although the solo sequential turbocharger of Cummins is similar to the Powerstroke, it has several key differences. Although they both have truck numbers in the hundreds, the power of Powerstroke makes it superior. With consideration of performance, the 6.7 Powerstroke engine is the most effective option available.
Pros & Cons Cummins and Powerstroke Engine
6.7 Cummins
The 6.7 Cummins is relatively easy to maintain and is able to haul heavy weight. Its durability gets proven by its capacity to endure for a long time. Moreover, due to the system’s simplicity, the maintenance costs are less costly.
One potential downside of this diesel engine is its emission equipment is a potential source of failure. Additionally, regarding power, you might not be capable of pushing your vehicle, as it needs to be built to be driven regularly by people.
6.7 Powerstroke
Now, the 6.7 Powerstroke is currently the most strong diesel engine available. The appearance is one of luxury despite the design’s rugged construction. It enables the vehicle to serve a variety of functions. In addition, it provides respectable gas mileage for a pickup.
One of the Powerstrokes’ drawbacks is that the engine needs to make use of the engine’s full torque capacity. Investing a significant amount in maintenance repairs, particularly for CP4 breakdown repair.
Which lasts for longer?
Ram claims that the lifespan of its 6.7 Cummins is 350,000 miles. However, diesel trucks often only have engines that survive that long, at least not without extensive maintenance. This is why around 350,000 to 500,000 miles is considered excessive mileage for a Ram 2500 powered by a Cummins engine with a solid service history.
On the other hand, in terms of high-mile dependability, the 6.7 Powerstroke easily surpasses 200,000 miles. Followed by Ford’s suggested service intervals, this engine would last 300,000 to 400,000 miles. But several repairs and a few maintenances would be required.
Which one is the most reliable diesel engine?
The horsepower and torque of these two latest version engines are similar, yet they’re yet in the race to become America’s most popular truck diesel engine.
Regarding the RAM 3500 and 2500 pickup trucks, the 6.7 Cummins is the most potent engine available. Regarding the RAM 2500 and 3500 pickup trucks, the Cummins 6.7L is by far the most powerful engine available. This beast can generate up to 400 hp and 1,000 lb-ft of diesel torque, making RAM capable of best-in-class towing.
On the other hand, the 6.7 Powerstroke has proven to be an incredibly reliable diesel engine. For most of all applications, its 235 horsepower and 500 lbs-feet of torque provide more than enough power. Additionally, it comes constructed with a focus on reliability, with features like an air-to-air converter, oil-based fueling, and rigorous internal hard components.
Final Thought
Whether 6.7 Cummins or Powerstroke, both the engines used in the latest vehicles offer tremendous functionality. The high horsepower and extra gears of the 6.7 Powerstroke diesel engines give smooth acceleration and driving experience.
On the other hand, the heavy-duty 6.7 Cummins engine gives you two particular levels of power. So, the argument of 6.7 Cummins vs. Powerstroke depends mainly on the horsepower, torque, and performance it offers.
