The History Of The Cummins KTA19 & Where It Is Used Today

The Cummins KTA19 marine engine has established a solid reputation for its reliability, robust power output, and durability in various demanding marine applications. Part of the K Series, the KTA19 has been a popular choice for decades among operators of fishing vessels, tugboats, offshore service vessels, and yachts. With a straightforward design, high horsepower, and a proven track record, the Cummins KTA19 continues to be favored by mariners who need dependable power on the water. Let’s dive into the history, features, and lasting impact of this powerful engine.

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Origins of the Cummins KTA19

The KTA19 is part of Cummins’ K Series, which includes a range of high-horsepower engines designed for tough, heavy-duty applications. Cummins introduced the K Series in the 1960s, with the KTA19 becoming one of the most successful models within the series due to its versatile design and suitability for both marine and industrial applications. The KTA19’s robust design has allowed it to handle challenging marine environments, making it a trusted option for boat operators worldwide.

The KTA19’s 19-liter displacement and six-cylinder inline configuration give it a compact footprint while still delivering significant power. Over the years, this model has evolved to incorporate modern technologies that enhance performance and efficiency while maintaining its foundational qualities.

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Features of the Cummins KTA19

The Cummins KTA19 boasts several features that contribute to its reliability and versatility in marine environments:

1. Turbocharging and Aftercooling: The KTA19 uses a turbocharger and aftercooler to increase its power output and efficiency. Turbocharging compresses air going into the engine, improving combustion, while aftercooling cools this air for even better fuel efficiency and performance.

   

2. Durable Construction: The KTA19 is built with heavy-duty components designed to withstand the rigors of continuous operation in challenging marine environments. Its robust design features a forged steel crankshaft, cast iron pistons, and cylinder liners that offer exceptional durability.
3. Inline Six-Cylinder Configuration: The engine’s inline-six configuration provides a balanced and compact design that makes it easier to fit into various types of vessels, from commercial boats to recreational yachts.

   

4. Fuel System: The KTA19 features a mechanical fuel system, which simplifies maintenance and provides dependable performance. Many boat operators appreciate the engine’s mechanical design for its ease of service and lower maintenance costs compared to more complex electronic systems.
5. High Power-to-Weight Ratio: Known for its impressive power-to-weight ratio, the KTA19 delivers strong performance without taking up excessive space, making it ideal for boats where space is limited but power is needed.

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Marine Applications of the KTA19

The Cummins KTA19 has proven itself in a range of marine applications, providing reliable power and efficiency. Some of its key applications include:

• Fishing Vessels: The KTA19 is popular in commercial fishing boats, where operators need reliable power to tow nets and handle heavy hauls. Its durability makes it well-suited for long hours on the water.      
• Tugboats: Tugboats require engines that deliver high torque and power for moving large vessels in and out of port. The KTA19’s power output and robust design make it a dependable option for these demanding tasks.
• Offshore Service Vessels: For offshore vessels that transport personnel, equipment, or cargo, the KTA19 provides the reliability and power necessary to handle rough conditions and long distances.
• Yachts: The KTA19 is also used in larger recreational vessels, such as yachts, where its power and efficiency contribute to a smooth, enjoyable ride on the water.

Advancements in the KTA19

Over its production life, the Cummins KTA19 has seen various upgrades and improvements to enhance its performance, efficiency, and emissions. Some of these advancements include:

• Aftercooling Improvements: The KTA19’s aftercooler has seen enhancements over the years, with improved cooling capabilities that enable better combustion and fuel efficiency. This makes the engine not only powerful but also relatively fuel-efficient for its size and output.
• Turbocharger Upgrades: Turbocharging technology has improved significantly since the KTA19’s introduction, allowing for greater boost pressure and more efficient operation. These enhancements have helped the KTA19 maintain its position as a top choice for high-power marine applications.
• Mechanical Fuel Injection Refinements: Cummins has refined the KTA19’s mechanical fuel injection system to improve fuel delivery and optimize power output. This straightforward, reliable system is part of what makes the KTA19 so enduringly popular among marine operators.

Diesel Pro Power: Aftermarket Support for the Cummins KTA19

As the KTA19 continues to power vessels around the world, Diesel Pro Power offers extensive aftermarket support to keep these engines in peak condition. Diesel Pro Power provides a wide range of aftermarket parts designed specifically for the Cummins KTA19, including:

• Turbochargers and Aftercoolers: Essential for maintaining power and efficiency, Diesel Pro Power offers high-quality turbochargers and aftercoolers to ensure the KTA19 continues to perform at its best.
• Raw Water Pumps: These pumps bring in the water from the surrounding environment  to aid in cooling the engine.

  

• Freshwater Pumps:  These pumps circulate coolant throughout the engine to keep it cool.

  

• Oil Pumps & Filters : Essential for keeping the engine lubricated.  Below is a video on installing the lubricating oil pump on a Cummins KTA19:
• Cylinder Heads and Gaskets: Diesel Pro Power stocks durable cylinder heads, gaskets, and seals that are compatible with the KTA19, making it easy to find replacement parts that extend the life of your engine.

Below is a video of installing the Cylinder Heads on a Cummins KTA19 from our Youtube Channel:

 

 

• Fuel Injectors and Fuel System Components: Diesel Pro Power provides a range of parts for the KTA19’s fuel system, helping to maintain fuel efficiency and reliable performance.

Below is a video on setting the injector timing height on a Cummins KTA19 using the OBC method:

Below is a video on Assembling and installing the injectors and injector seals for a Cummins KTA19 

• Overhaul Kits: Diesel Pro Power offers comprehensive overhaul kits, which include essential components like pistons, rings, bearings, and gaskets, allowing operators to rebuild and restore their KTA19 to like-new condition.
  Below one of our customers (Imperial Diesel Service, LLC) overhauls a Cummins KTA19 in a tugboat using a Diesel  Pro Power, Inc. overhaul kit.

Below is a video on assembling the cylinder kits which are part of an overhaul kit for a  Cummins KTA19 :

Below is a video on installing the cylinder kits and connecting rods on a Cummins KTA19

Part 1 Of Cummins KTA19 Overhaul

0:16 Assembly Of The Cylinder Kits

25:10 Installation Of The Seals On The Front Housing

32:20 Assembly Of Coolant Rail

34:54 Installing Front End Plate

39:27 Installing Lubricating Oil Pump

40:24 Installing Timing Gears

43:45 Installing Camshaft

45:50 Installing Front Housing

48:19 Installing Cam Followers

50:54 Installing Cylinder Kits & Connecting Rods

52:17 Measuring The Liner Height

Part 2 Of The Cummins KTA19 Overhaul 

0:16 Tour Of Godwin Singer Machine Shop

1:16 Installing The Cylinder Heads

9:35 Installing Rocker Cover Housing

14:43 Installing The Push Rods

15:54 Installing The Fuel Manifold

20:15 Installing The Oil Pan

22:33 Installing The Cam Follower Cover & Hand Hole Cover

23:14 Installing The Murphy Switch For Oil Level

23:54 Installing The Turbo & Exhaust Manifold

27:59 Installing Front Seal

29:52 Installing Vibration Damper

31:24 Assembling & Installing Injector Seals & Injectors

39:26 Installing Rocker Arms

43:19 Setting Injector Timing Height Using The OBC Method

48:45 Installing The Valve Covers

50:22 Engine Startup!

 

 

By offering a large inventory of aftermarket parts and exceptional customer service, Diesel Pro Power ensures that KTA19 engine operators can continue to rely on their engines for years to come.

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Conclusion

The Cummins KTA19 has built a lasting legacy as a powerful, durable, and versatile engine for marine applications. Its robust design, high power output, and reliability have made it a top choice for fishing vessels, tugboats, offshore service vessels, and large yachts. Today, with the support of Diesel Pro Power’s extensive aftermarket parts inventory, operators can maintain and rebuild their KTA19 engines, ensuring they continue to perform reliably in the most demanding marine environments.

For high-quality Cummins KTA19 parts and knowledgeable support, visit Diesel Pro Power. Diesel Pro Power’s comprehensive selection of aftermarket parts is designed to help you get the most out of your Cummins KTA19, whether you’re performing routine maintenance or a full engine rebuild.