What makes a Cummins engine so good?

The Cummins engine is durable, reliable, and powerful. Cummins was originally built for heavy-duty, commercial work. It's based on the needs of the most grueling and demanding work, and that delivers benefits for all other Cummins engine designs and applications.
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Why are Cummins engines so reliable?

Cummins began to dominate the market when it came to diesel engines for the automotive industry because of its reputation for longevity. The engine's head and block are constructed with cast iron. The crankshaft and the connecting rods are forged steel along with massive main bearings.
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Are Cummings engines reliable?

The Cummins brand is extremely reliable and prides itself on long-lasting engines. The 5.9-liter engine can expect to churn out 300,000 to 400,000 miles. The 6.7-liter engine ranges in the middle of that at 350,000 with no modifications and proper services. Diesel engines are made to be powerful and give high output.
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Which Cummins engine is the best?

The Cummins 6.7L Turbo Diesel is the most powerful engine option for RAM 2500 and 3500 pickup trucks. Producing up to 400 horsepower and 1,000 pound-feet of clean diesel torque, this powerhouse helps RAM deliver best-in-class towing.
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What makes the 5.9 Cummins so good?

One of the Cummins' biggest strengths has always been its use of six head bolts per cylinder. On 5.9L mills especially, where a fixed geometry turbo is employed and less torque is typically produced than what the 6.7L does, a blown head gasket is an extremely rare occurrence at mild to moderate power levels.
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CUMMINS - Everything You Need to Know | Up to Speed



Is Cummins better than Duramax?

The Duramax leads with horsepower, but the Cummins is the king of torque with numbers up to 1,000 ft-lbs depending on the truck.
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Is Cummins better than powerstroke?

Powerstroke Diesel vs.

Most diesel enthusiasts seem to agree that the Cummins Turbo Diesel is the better engine in terms of reliability, but the Ford pickups tend to last longer and be more reliable than the Ram pickups.
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What is the most unreliable diesel engine?

The Worst Used Diesel Trucks Not Fit for Work
  • Some 1994-2001 Chevy & GMC 6.5L Pickup are the worst for reliability.
  • The Ford Super Duty 6.4L is a disappointing comeback.
  • Why did the 1982-1993 Chevy & GMC 6.2L Pickup put out so little power?
  • The 2003-2007 Ford Super Duty 6.0L may be the worst diesel truck of all time.
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Is Cummins 12V or 24v better?

When it comes to serious power and performance the 12v 5.9 Cummins takes the win. These engines are known to hold up better at extreme power levels when compared to the 24v engines.
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Is a 5.9 or 6.7 Cummins better?

To sum up, the more simplistic 5.9 fixed geometry turbo means that while it tends to be more reliable, the more advanced 6.7 variable geometry turbo gives better performance. The Exhaust Brake is a big part of why the 6.7 Cummins is such a powerful towing machine.
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How many miles can a Cummins last?

How long does a Dodge Cummins last? According to Consumer Reports, a properly maintained Cummins engine can last 300,000-350,000 miles. But a poorly-treated truck can wear out much sooner.
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Which year Cummins is best?

1994-1998 2500 & 3500

As far as performance potential goes, it doesn't get any better than the mechanical P7100 equipped versions of the 12-valve 5.9L Cummins. They're simple, rock-solid reliable, and can easily tick off a half a million miles if properly maintained.
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What is considered high mileage for a Cummins?

Cummins is the brand of engine found in the Dodge diesel and Ram diesel truck lines. Like the Duramax, Cummins diesel engines can be expected to last a long time. Between 350,000 and 500,000 miles is usually considered high mileage on a Cummins diesel.
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Which is better Cummins or Caterpillar?

In terms of fuel efficiency, Cummins' engines are 6% better than Caterpillar . That's not the only area where CMI's coming out on top. It's taking share from CAT in other heavy-duty engines as well. Cummins is taking share from all its competitors, actually, as it's now the largest supplier to Paccar .
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How many miles will 6.7 Cummins last?

Ram claims the Cummins 6.7 engine to be good for 350,000 miles. The mileage is guaranteed if the scheduled services have been carried out timeously and no performance modifications have been done to the engine.
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How many MPG does a 5.9 Cummins get?

We own five Dodge 4x4 pickups with the 5.9L Cummins, and we are thrilled with all the trucks. All five trucks we own average 29 MPG highway, and 24 MPG in town. Cummins 5.9L has the fuel economy, speed, and the power to pull.
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How many miles will a 24 valve Cummins last?

The lifespan of the 24 Valve Cummins diesel can vary depending on how it is cared for. However, consumers report that you can expect an average lifespan of 300-350,000 miles. Nonetheless, there have been consumers who report exceeding 500,000 miles on their 24 Valve Cummins engine.
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How much horsepower can you get out of a 12 valve Cummins?

Though it's quite restrictive, the factory cast-iron 12-valve cylinder head will allow you to reach 500 hp, but that aged head gasket might not live at 35-45 psi of boost.
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What year is the best 12 valve Cummins?

Among its strong suits are;
  • P7100 (The Holy Grail) While the 12-valve was built from 1989 to 1998, most people look for the 1994-98 model. ...
  • Affordable Injector Upgrades. ...
  • Simple Designs. ...
  • HX35: ...
  • Free Horsepower.
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What is the best truck engine ever made?

12 Greatest Engines Ever Put In A Pickup Truck
  1. 1 2001-2006 Duramax 6.6L V8.
  2. 2 2019 - Current - Ford 2.3-Liter EcoBoost. ...
  3. 3 1929-1936 Chevrolet Inline-Six. ...
  4. 4 2002-Present Toyota GR 3.5L V6. ...
  5. 5 2011-2015 Ford 6.7-Liter Power Stroke V8. ...
  6. 6 1993-2004 Ford 5.4-Liter V8. ...
  7. 7 1972-1978 Dodge 7.2-liter Big-Block V8. ...
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Who owns Cummins engines?

Kirloskar Group - 25.5%
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What diesel engine has the least problems?

The 7.3L Powerstroke is still considered one of the most reliable diesel engines ever made. It also has plenty of power for most applications, with 500 pound-feet of torque and 235 horsepower. It was built for the long haul, too with an air-to-air intercooler, oil-based fueling, and durable internal hard parts.
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What is the strongest diesel truck?

  • Ram 3500 Heavy Duty with Cummins 6.7-liter High Output Turbo Diesel brings total torque to 1,075 lb.-ft., highest diesel rating ever for a pickup.
  • Segment best 37,100-lb. ...
  • Ram was the first to achieve the 1,000 lb.-ft.
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Does Cummins make a V8?

Cummins 5.0L V8 Turbo Diesel for Pickups.
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How many MPG does a 6.7 Cummins get?

While a 6.7L Cummins engine does a truck a lot of favors, the MPG on trucks boasting these engines is still on the lower side. On average, a Ram equipped with a 6.7L Cummins engine will get between 14 and 17 miles per gallon.
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