6.7 Powerstroke Vs 6.7 Cummins: Check the Reliability of Engines

6.7 Powerstroke Vs 6.7 Cummins

While buying a truck for your daily routine work, which one would be the best for you? It would be a little bit confusing for you. If you are not from the automobile industry, not having much experience with driving trucks, it might be irritating. Actually, it depends on the engine used by the car that makes the difference with each other.

Do you want to get into that technical stuff of engines in detail and want to know the best suitable engine for you according to your daily work routine and driving habits? If yes, then you are in the right place. Here, I am going to compare the two most demanding engines in the market – the 6.7 Cummins vs 6.7 Powerstroke. 

6.7 Powerstroke Vs 6.7 Cummins

Before diving into the direct comparison between both of these engines, let’s first talk a little brief about them.     

6.7 Powerstroke Engine

6.7 Powerstroke

The 6.7L Power Stroke is the engine developed by Ford Motor Company. This engine is a  turbocharged diesel engine. It is designed, engineered, and produced by Ford without any third party interruptions. It helped the company to maintain profitability and a competitive edge in the growing diesel segment. 

In 2011, the first time in the history of Ford Motor Company, they manufactured the 6.7L Power Stroke engine by breaking their partnership with International Navistar. This situation gave them an advantage over competitors and the freedom to design a driver that fits their specific needs and the requirements of their customers.

6.7 Cummins Engine


The 6.7L Cummins Engine is developed by one of the fortune 500 companies of the USA i.e., Cummins. It is the latest engine of the B-series engine family, produced by Cummins. It is a turbocharged diesel engine introduced in 2007, which is used in RAM trucks. The Ram trucks come in two variants, RAM 2500 & RAM 3500. 

This engine was launched as a replacement for the previous 5.9L ISB engine. The reason behind closing the 5.9L ISB engine was the strict Federal emission standards. Also, there was a need for a more competitive platform to permit future growth under growing industry constraints.

6.7 Powerstroke Specs Vs 6.7 Cummins Specs

Specs6.7 Power stroke6.7 Cummins
PerformanceSingle Sequential TurbochargerDiesel Particulate Filter System
Power450 HP400 HP
Torque935 lb-ft1000 lb-ft
Speed3000 to 3500 RPM1900 to 2000 RPM
Fuel ConsumptionMoreLess
ReliabilitySuitable for city drivingBetter for hauling and towing


The 6.7L Power Stroke comes with a unique single sequential turbocharger (SST). It has a feature of the dual compressor and a single turbine setup affixed to a standard shaft. In 2017, the SST of the Power Stroke revised with an increase in torque. It reached an all-time high at 925 lb-ft. Again in 2018, both the horsepower and torque were once again increased. The power was peaking at 450 hp, and torque was boosted at 935 lb-ft.

The 6.7L Cummins Engine is the first engine manufactured by Cummins, which comes with a diesel particulate filter (DPF) system. The first model of this engine was having at 2900 RPM. In 2012 the revised model came with 610 lb-ft at 1600 RPM. The latest 2019 revised model of 6.7L Cummins set an industry record. They achieved a 1000 lb-ft benchmark in torque output.


When driving the Ford truck having the 6.7L Power Stroke engine in it, you can observe that on flat roads, it runs at 1600 RPM and on hilly roads, the RPM can go up to 3000 to 3500. While in RAM 3500 truck having 6.7L Cummins engine, you can observe the flatways that runs at 1600 RPM and on hilly roads, it is between 1900 to 2000 RPM.

Fuel Consumption

While towing the trailer & hauling hefty loads up to 40 to 45 thousand pounds, the 6.7L Power Stroke engine struggles a lot, while the 6.7L Cummins engine shows excellent performance there. It’s because the 6.7L Cummins engine has more low-end torque when compared with the 6.7L Power Stroke engine. Hence, the fuel consumption of the 6.7L Power Stroke engine is more than the 6.7L Cummins engine.


When comparing 6.7 Cummins vs 6.7 Powerstroke reliability, the performance of these engines without any load attached to it gives a flip. You can observe with the improved version of the 6.7L Power Stroke engine; it is faster than the 6.7L Cummins engine. So, if you are a crazy teamster like me who likes to have drag races, then the 6.7L Power Stroke engine can help you.

People also ask

1) Which is better Cummins or Powerstroke?

It all depends on the requirement and expectations. If you want more power, Powerstroke is the right option for you. If you want more torque, Cummins will serve you better.

2) How many miles does Cummins 6.7 last?

You can expect it to last for 350,000 miles under normal circumstances.

3) What are the problems with the 6.7 Powerstroke?

Many users have complained about bad bearings and leakages in the 6.7 Powerstroke. These seem to be the most common problems.

4) How reliable is the 6.7 Powerstroke?

The 6.7 Powerstroke is very popular for its solid engine and durability. Even though this Ford engine has been known to cause some problems, it is still one of the most reliable options on the market.

5) How much boost can a 6.7 Powerstroke handle?

It can handle 21-22 psi.

6) How do you maintain a 6.7 Powerstroke?

  • Rotate the tires as and when needed
  • Check the air filter for restrictions
  • Check the tires for wear and tear
  • Check the fluids
  • Make sure the brakes are working fine
  • Grease joints as and when needed
  • Don’t miss any servicing dates

7) How can I make my 6.7 Powerstroke faster?

The best way to do this is to custom tune it. 

8) What is the normal oil temp for 6.7 Powerstroke?

197 to 199 degrees F is a good temperature for the oil.

9) What is the normal water temperature of a diesel engine?

The normal water temperature is about 180 degrees F. 

10) How often should I change my fuel filter in my 6.7 Powerstroke?

It is advisable to do it once in every 15,000 miles.

11) What temperature should a 6.7 Cummins run at?

The ideal temperature is 190 degrees F.

12) What size turbo is on a 2012 6.7 Powerstroke?

GT37 Turbo.

13) How much does an oil change cost for a 6.7 Powerstroke?

This depends on your car. But, on an average, it will be around $120.

14) What turbo is on a 6.7 Powerstroke?

It is DualBoost SST Turbocharger.

The Bottom Line

I would like to conclude by saying that if your daily work is to tow and haul bulky goods, then go for the 6.7L Cummins engine. And, if your work is more is to travel in city traffic with lighter products, then go for a 6.7L Power Stroke engine. I hope you liked the article and it was helpful to serve your purpose. Thanks for reading. Happy and safe driving. Stay tuned for more such updates and comparisons. 🙂

Leave a Reply

Your email address will not be published. Required fields are marked *