Introduction: What is a Cummins Engine and How Does it Work?

What is a Cummins Engine?

A Cummins engine is a type of diesel engine made by the Cummins company which first originated in Columbus, Indiana. Now, Cummins has several factories and distribution centers located worldwide. Cummins engines are renowned for their reliability, durability, and power output. Due to their excellent performance, these engines are commonly used in a variety of applications such as power generators, industrial vehicles, marine engines, and heavy-duty trucks. For example, construction equipment, garbage trucks, school buses, tractor trailers, military vehicles, yachts and other boats. 

How Does A Cummins Engine Work?

Cummins engines are internal combustion engines that use diesel fuel to generate power. The engine works by using a combination of air and fuel that is injected into the combustion chamber at high pressure. This causes an explosion, which powers the piston and turns the crankshaft.

 

Cummins Marine Engine Specs (Power & Torque)

 

Cummins 4BT

 

Power: 150-155 hp

 

Cummins 6BT

 

Power: 180-370 hp

 

Cummins 6BTA

 

Power: 180-370 hp

 

Cummins QSB 5.9

 

Power: 230 – 480 hp

Torque: 510 – 942 lb-ft

 

Cummins QSB 6.7

 

Power: 230 – 550 hp

Torque: 720 – 1250 lb-ft

Cummins 6CT

Power: 164 – 270  hp 

 

Cummins 6CTA

 

Power: 164 – 270  hp 

 

Cummins QSC

 

Power: 490 – 600 hp

Torque: 1327 lb-ft

 

Cummins QSL

 

Power: 290 – 410 hp
Torque: 1064 – 1162 lb-ft

 

Cummins QSM

Power: 300 – 715 hp

Torque: 1160 – 1750 lb-ft

 

Cummins KTA19

Power: 500 – 700  hp 

 

Cummins KTA38

 

Power: 850 – 1500  hp 

 

Cummins KTA50

 

Power: 1180 – 1875  hp

 

Cummins QSK19

 

Power: 525 – 800  hp

Torque: 1775 – 2275  lb-ft

 

 

Advantages of Using a Cummins Engine

Cummins engines are renowned for their power and performance. They provide superior power and torque, making them ideal for several applications. Cummins engines feature high-pressure common rail injection systems, advanced turbocharging technology, and advanced electronic controls that allow for efficient combustion which enables Cummins engines to deliver maximum power while reducing fuel consumption and emissions. 

Who Does Cummins Make Engines For In The Marine Industry?

Cummins makes engines for a wide range of marine applications which include boat engines, workboats, commercial vessels, pleasure crafts, fishing vessels and more.

What Is the Best Cummins Marine Engine?

One of the foremost Cummins marine diesel engines is the 6BTA. This engine is the highest production 6L diesel engine ever made and is still in production in several countries worldwide. The 6BTA has a simple 12 valve mechanical design and features a power range between 150 to 370hp. It also has a compact design and is rated for continuous duty operation in harsh sea conditions. The 6BTA provides reliable and durable performance, making it a popular and ideal engine choice for marine applications. Right behind the 6BTA will be the Cummins QSB6.7 which is another exceptional marine diesel engine.