You asked: How long do Cummins diesel engines last?

So, the general consensus seems that a Cummins engine’s life expectancy is from 300k-400k miles, but if you follow the correct steps, you could, and should have some sort of control over the life span of your engine, and we don’t think crossing your fingers will really suffice.

How many miles can a Cummins last?

Ram claims the Cummins 6.7 engine to be good for 350,000 miles. The mileage is guaranteed if the scheduled services has been carried out timeously and no performance modifications have been done to the engine.

What is high mileage for a Cummins diesel?

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.

How many miles will 6.7 Cummins last?

A properly maintained and well worked Cummins will easily last 250k with hardly any compression or power loss in just about any driving conditions.

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Are Cummins engines reliable?

A Cummins diesel engine is recognized around the world as a superior truck engine not only because a Cummins engine will have the horsepower and torque a work truck needs to tow a hefty load, but these engines are also noted for unmatched durability.

What is the best year Dodge Cummins to buy?

  • 1989-1993 Dodge Ram 2500 and 3500 – Timeless Diesel. …
  • 2003-2008 Dodge Ram 2500 and 3500 Heavy Duty – Best Used Diesel Value. …
  • 2010-2013 Ram 2500 Heavy Duty – Most Capable Diesel. …
  • 1999-2003 Super Duty – Best Budget Diesel. …
  • 2008-2010 Super Duty – Best Diesel to Modify.

What are the worst diesel engines?

Ford Super Duty 6.0L (2003-2007)

Introduced mid-2003, the Ford 6.0L turbo is by far the worst modern diesel engine. It’s so bad, in fact, that Navistar (Powerstroke’s parent company) and Ford had a legal battle over it. The list of issues ranges from head gasket problems to catastrophic fuel system failures.

Is 5.9 or 6.7 Cummins better?

Thanks to its increased stroke over the 5.9L (4.88 inches vs. 4.72 inches), the 6.7L makes considerably more torque at low rpm, especially when combined with the aforementioned quick-lighting variable geometry turbocharger.

Should I buy a diesel with 200k miles?

High Mileage

Generally speaking, diesel trucks are sold with higher mileage than the typical used vehicle. It is not uncommon to see a used diesel truck for sale with over 200,000 miles on it. Granted, diesel engines typically have better reliability than a gasoline equivalent, but high mileage remains a concern.

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What are the problems with the 6.7 Cummins?

5 Common 6.7 Cummins Problems

  • Clogged DPF.
  • Turbo failure.
  • Head gasket.
  • Fuel dilution.
  • EGR cooler.

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Is deleting a 6.7 Cummins worth it?

Should I Delete My 6.7L Cummins? To put it bluntly, no, you should not remove the emissions equipment from any diesel pickup. … Removing emissions equipment also voids the vehicle’s factory warranty. And before you say it, there is no way to keep a dealer from knowing that emissions equipment was removed.

How often should you change oil in a 6.7 Cummins?

6.7L Cummins Maintenance Schedule

Service Procedure Interval(s)
Replace engine air filter 30,000 miles/24 months
Change engine oil & oil filter 2007.5 – 2012 7,500 miles/6 months
2013 – 2019 15,000 miles/6 months/500 hours
Replace crankcase ventilation (CCV) filter 2007.5 – 2018 67,500 miles/54 months

Are Cummins engines made in China?

As we all know that Cummins company have a worldwide sales and manufacture for its engines alternators(Stamford) and spare parts. … There are 5 engine factories in China now, and all of them are a joint-venture Company with Chinese. They are: Dongfeng Cummins Engine Company which is called “DCEC” for short.

What is the best year for Dodge Ram 2500 Diesel?

Best used diesel Ram truck models

Car and Driver and TruckTrend agree that the Ram 2500 and 3500 Heavy Duty models from 2003-2008 are good finds. While C/D highlights the 2002-2003 model years, TruckTrend notes that the third generation Ram HD pickup received a facelift in 2006, gaining extra cargo and cabin capacity.

Is Cummins better than Duramax?

More horsepower means faster acceleration whether you’re towing or not. The current Duramax 6.6L L5P diesel wins this category with 445 horsepower. The current 6.7L 24V Ram Cummins diesel engines produce 400 horsepower. Historically, horsepower has swayed slightly in favor of the Duramax versus the Cummins line.

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Why are diesels so unreliable?

Firstly the modern diesel engine is unreliable. This is largely down to one thing: the particulate filter which must be plumbed into the exhaust system to stop these cars belching the clouds of lung-clogging smoke that we associate with grease-burning engines.

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