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The Daily Insight

What uses a Cummins 4bt?

Author

Emma Newman

Updated on March 04, 2026

The 4BT—which stands for four-cylinder, B-series, Turbocharged—was used mostly in midsize box trucks, agricultural equipment and small industrial vehicles, and is basically a smaller version of the popular 5.9L 12V Cummins found in the 1989-98 Dodge trucks.

Hereof, how much power can you get out of a Cummins 4bt?

It is currently 95 HP and runs well, but I would like to get it up to 125 HP to 150 HP.

Also, how much does a 4bt Cummins swap cost? You can bet with projects such as 6BT powered Dodge Ram and a 4BT powered Chevy Tahoe he gets a lot of people asking how much it would cost to swap a Cummins diesel into their vehicle. The total comes out to between $11,150-$12,650 CAD or around $8,634-$9,795 USD.

Thereof, how much torque does a Cummins 4bt have?

The 3.9L (4BT) Cummins inline-four diesel engine creates 105hp and 265 lb-ft of torque from its relatively small size of 30.6 in long, 24.6 in wide and 37.7 in high. This is what makes it such a popular candidate for engine swaps.

What is the smallest Cummins Engine?

Cummins not only designed its exhaust catalyst for a maintenance-free life, but adjusted every aspect of the new QSF2. 8 (at 2.8 liters its smallest off-road diesel engine) to reduce maintenance and enhance reliability.

Related Question Answers

How much horsepower does a 6bt Cummins have?

5.9L 12v Cummins Specs
Production Years: 1989 - 1998
Oil Capacity: 12 qts w/ filter
Governed Speed: 2,700 rpm
Horsepower: 160 - 215 HP @ 2,500 rpm
Torque: 400 - 440 lb-ft @ 1,600 rpm

What is a 6bt Cummins?

6BT Cummins: Engine Basics The 6BT Cummins is a 5.9L inline-6, with an OHV designed and 12 valves; Another name for the 6BT is “12-Valve.” The architect of the 6BT is roughly similar to the AMC inline-6 of the time. The 6BT has an iron cylinder block, as well as an iron cylinder head.

Who owns Cummins engines?

Cummins set the record straight in their May 2013 newsletter, outlining that Ford Motor Company had purchased 10.8% of the diesel engine manufacturer in 1990. In 1997, those shares were bought back, and as such Ford has not owned a stake in Cummins since.

What is a 4bt Cummins?

The Cummins 4BT is essentially a 5.9L 12v Cummins minus two cylinders. This 3.9L, 4 cylinder, inline diesel was commonly used in commercial van applications (popular application for Chevy Step Vans - think bread delivery trucks), as well as a variety of construction and agricultural equipment.

How much horsepower does a 12v Cummins have?

5.9L 12v Cummins Specs
Production Years: 1989 - 1998
Oil Capacity: 12 qts w/ filter
Governed Speed: 2,700 rpm
Horsepower: 160 - 215 HP @ 2,500 rpm
Torque: 400 - 440 lb-ft @ 1,600 rpm

How fast can a 4bt go?

A mechanic (maybe) was telling me that the top speed for a 4BT in automotive trim could be safely raised to 3600 rpm. This was allegedly due to the fact that automotive application typically run wide open for only a short time as compared to industrial which can be for a very extended time.

What does 6bt mean?

The acronym "6BT", which denotes the 5.9L 12v Cummins (1989 - 1998 model years), stands for 6 cylinder, "B series", turbocharged. The Cummins "B series" is a family of inline cylinder diesel engines including 4 and 6 cylinder models.

What truck has a 3.9 Cummins?

The Cummins 4BT is essentially a 5.9L 12v Cummins minus two cylinders. This 3.9L, 4 cylinder, inline diesel was commonly used in commercial van applications (popular application for Chevy Step Vans - think bread delivery trucks), as well as a variety of construction and agricultural equipment.

How do diesel engines increase horsepower?

Here are the top ways to get more out of your engine.
  1. Upgrade the Air Intake. One sure way to increase the performance of a diesel vehicle is to improve the airflow to the engine.
  2. Change or Reprogram the ECM.
  3. Using New Fuel Injectors.
  4. Turbochargers.
  5. Performance Exhaust.

How much does a 5.9 Cummins Engine weight?

5.9L Cummins 24v Specs
Production Years: 1998 - 2007
Valvetrain: OHV, 4 valves per cylinder, solid lifter camshaft
Valve Lash (Clearance): Exhaust Valves: 0.020" (engine cold)
Intake Valves: 0.010" (engine cold)
Weight: Approx. 1,150 lbs

How many cylinders does a 5.9 Cummins have?

All these Cummins diesel engines are inline 6 cylinders. You can find these Cummins engines in many Dodge Ram 2500, 3500, 4500 and 5500 truck models. The original design in 1989 to 1993 started with a 5.9l VE-Rotary pump and 12 valves. These engine produced 160 horsepower (HP) and 400 foot pounds of torque (lb-ft).

What is the difference between 4bt and 6bt?

4bt is lighter and smaller but can rattle a bit. 6bt has more power, no rattle but larger in size and weight.

When did the 5.9 Cummins come out?

The last generation 5.9l Cummins engines from 2003 to 2007 used HPCR pump and 24 valves.

How can I improve my engine performance?

You can do these five things to boost engine power and make your vehicle run faster than ever:
  1. Use a cold air intake (CAI)
  2. Reduce the weight.
  3. Install a performance chipset.
  4. Attach a cat-back exhaust system.
  5. Invest in a forced induction system.

How much is a 5.9 Cummins worth?

Keep in mind that even if you're looking for a fixer-upper, the 5.9L Cummins alone warrants at least a $500 to $1,000 price tag.

Can I put a Cummins in a Ford?

If you are considering a Cummins® diesel conversion into your Super Duty® Ford®, or Chevy truck- you have come to the right site. The Cummins diesel, famous for simplicity and reliability, can be installed in the truck you have- making it the truck you want to keep.

How much does it cost to install a diesel engine?

As for a domestic diesel engine like a 2008 Ford F-250 super duty you should expect to pay $8,498, which includes free shipping. On average most domestic diesel engines will range between $5,500 to $11,000.

How much does a Cummins conversion cost?

Q. How much does it cost to do a conversion? A. Generally you can expect to spend $10000.

How much does a 6bt Cummins weight?

1,100 lbs

Can I put a diesel engine in my gas truck?

Can you put a diesel engine in a gas truck? Definitely possible. Much of your costs will be determined by what you can buy a 'donor' vehicle for. Buying a complete donor will most likely be your lowest cost to do the conversion; the parts of a vehicle are worth more than the sum of one that is complete.

How much does a 12 valve Cummins weigh?

5.9L 12v Cummins Specs
Production Years: 1989 - 1998
Valvetrain: OHV, 2 valves per cylinder, solid lifter camshaft
Valve Lash (Clearance): Exhaust Valve: 0.020" (engine cold)
Intake Valve: 0.010" (engine cold)
Weight: Approx. 1,100 lbs dry

How much does it cost to convert gas to diesel?

For engines without turbocharger, the conversion cost is $7,000 - $10,000, including Omnitek Kit, Engine Modifications, and Labor. Gas tanks, engine overhaul parts and installation are extra.

Can you swap a diesel engine for a gas engine?

The most common engine replacement involves replacing a gasoline engine in a light-duty vehicle with another gasoline engine. Another type of engine switching which commonly occurs, however, involves diesel powered vehicles where the diesel engine is removed and replaced with a gasoline engine.

How do you turn the P pump up?

How to turn up your P-Pump
  1. Remove your AFC Housing.
  2. Mod Your Fuel Plate either slide it forward or purchase a cut one.
  3. Adjust the governor lever to contact the fuel plate.
  4. Crank the star Wheel Towards the motor.
  5. Slide The AFC housing all the way forward.