A Quick Guide about the Dodge Cummins 24-Valve Engine

The Dodge Cummins 24-valve engine is one of the most sought-after diesel powerplants in the truck world. Known for its durability, efficiency, and massive aftermarket support, this engine has a well-earned reputation among diesel enthusiasts. Whether you own a 1998.5-2002 Dodge Ram 2500 or 3500 with the legendary 5.9L Cummins 24V, or you're considering upgrading your truck, this guide will cover everything you need to know about this powerhouse.

A Brief History of the 24-Valve Cummins

Dodge introduced the 5.9L 24-valve Cummins engine in mid-1998 to replace the previous 12-valve version. The biggest improvement was the High-Pressure Common Rail (HPCR) fuel system, which provided better fuel atomization, increased power, and improved efficiency. The Bosch VP44 injection pump was a key component in delivering fuel to the cylinders with precision, making the 24V more refined and powerful than its predecessor.

Key Specifications of the 24V 5.9L Cummins Engine:

• Production Years: 1998.5-2002

• Displacement: 5.9L (359 cubic inches)

• Valve Train: 24-Valve, Overhead Valve (OHV)

• Fuel System: Bosch VP44 Injection Pump

• Horsepower: 215-245 HP (varies by model year)

• Torque: 420-505 lb-ft

• Turbocharger: HX35W (manual), HY35W (automatic)

Common Issues with the Dodge 24V Cummins Engine

While the 5.9L 24-valve Cummins is a highly reliable engine, there are some common issues owners should be aware of:

1. VP44 Injection Pump Failure

The Bosch VP44 injection pump is known for premature failure due to poor fuel lubrication and lift pump failures. To prevent this issue, install a high-quality lift pump, such as a FASS or AirDog fuel system, which can be found at CI Motorsports.

2. 53 Block Cracking

Some early 24V Cummins engines came with the infamous 53 block, which was prone to cracking. If you're unsure whether your engine has a 53 block, check the casting number on the driver’s side of the block. If you have a 53 block, consider reinforcing it or swapping for a stronger alternative.

3. Weak Automatic Transmission

The 47RE automatic transmission paired with the 24V Cummins isn't known for handling extreme power. Upgrading to a built transmission, such as a Billet 47RE, or installing a performance torque converter and valve body from CI Motorsports can significantly improve reliability.

Best Performance Upgrades for the 24V Cummins

If you're looking to unlock more power and reliability from your Dodge Cummins 24V, consider these upgrades:

1. Performance Tuners & Programmers

Upgrading to a Smarty Tuner or Edge Juice with Attitude can provide increased horsepower, torque, and better fuel economy. These tuners allow you to adjust fueling, timing, and boost levels for maximum performance.

2. Upgraded Turbochargers

The stock HX35/HY35 turbo works well for stock applications, but upgrading to a BorgWarner S300 or S400 turbo from CI Motorsports can provide increased airflow, lower exhaust gas temperatures (EGTs), and better towing performance.

3. High-Flow Injectors

Stock Cummins injectors can limit power potential. Upgrading to 100HP or 150HP injectors will enhance throttle response and fuel atomization, giving you more power while maintaining efficiency.

4. Cold Air Intake & Intercooler Upgrades

A S&B Cold Air Intake and a Mishimoto Intercooler can significantly improve airflow and lower intake temperatures, increasing horsepower and engine longevity.

5. Stronger Head Studs

If you're pushing more than 40 PSI of boost, it's recommended to upgrade to ARP 2000 head studs to prevent head gasket failure.

Why the Dodge 24V Cummins is Still a Great Choice

Despite being over two decades old, the 5.9L 24-valve Cummins remains a popular choice for truck owners. Its legendary durability, ease of modification, and strong aftermarket support make it one of the best diesel engines ever produced. Whether you're maintaining your Dodge Ram 2500/3500 or building a high-performance diesel machine, the 24V Cummins is an excellent foundation.

For all your Cummins 24V performance parts and upgrades, check out CI Motorsports. We offer high-quality parts to keep your truck running strong and performing at its best!

Final Thoughts

The Dodge Cummins 24V engine is an icon in the diesel world. With proper maintenance and the right upgrades, these trucks can last well beyond 500,000 miles while delivering outstanding performance. Whether you're looking to fix common issues, increase reliability, or add more horsepower, the Cummins 24V platform provides endless possibilities.

Visit CI Motorsports today for the best performance parts and upgrades for your Dodge Cummins!