Best 5.9 Cummins 24v Performance Upgrades
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Best 5.9 Cummins 24v Performance Upgrades

Now long retired, the 24-valve Cummins turbo-diesel that was in production from 1998–2007 has officially obtained legendary status. The 24v Cummins was the successor to the 12v Cummins, and some regard them as the two best turbo-diesel engines ever made. Not only are they incredibly reliable and dependable, but they are very popular in the…

7.3 PowerStroke vs 5.9 Cummins Ultimate Guide
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7.3 PowerStroke vs 5.9 Cummins Ultimate Guide

If you were looking for turbo-diesel power in the 1990s and early-2000s, you had two main choices: Ford’s 7.3 PowerStroke V8 or Dodge’s 5.9 Cummins I6. These were some of the first modern diesels to have direct injection and turbochargers as standard, opening up entire new worlds of performance opportunities. Though now long out of…

5.9 Cummins Cold Air Intake Upgrade Guide
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5.9 Cummins Cold Air Intake Upgrade Guide

The 5.9 Cummins was produced in two different variations by Dodge from 1989 until 2007. The first generation, known as the 6BT or 5.9 Cummins 12v, was produced from 1984 until 1998. It produced 160-230hp and 400-440lb-ft. of torque. The ISB 5.9 Cummins 24v entered in mid-year 1998 and was phased out after 2007 for…

5.9 Cummins Intake Manifold Upgrades
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5.9 Cummins Intake Manifold Upgrades

The 5.9 Cummins is legendary in the diesel world for many reasons. However, by modern diesel standards it’s a bit lacking in power and torque. Fortunately, the Cummins 5.9L diesel engine has plenty of untapped potential. A few basic mods can truly take it to the next level. Among the best upgrades for the 5.9…

5.9 Cummins 12V vs 24V Cummins Turbodiesel
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5.9 Cummins 12V vs 24V Cummins Turbodiesel

Dodge Ram 5.9 Cummins engines are often regarded as some of the most reliable light truck turbodiesel engines ever. The 12v Cummins, also known as the 6BT, has a legendary reputation for reliability. However, the newer 24v 5.9 (ISB 5.9) Cummins is still an excellent, reliable diesel engine with a few pros of its own….

5.9 Cummins 24V Diesel Engine: 53 Block Problems
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5.9 Cummins 24V Diesel Engine: 53 Block Problems

The Cummins “53” Block was used in Cummins 24 valve ISB diesel engines from 1998.5-2002. Manufactured by Brazilian company, TUPY. The “53” block casting has thin water jacket walls that are susceptible to cracking. With coolant cavitation, corrosion, coolant pressure in the block, frequent or heavy towing they may crack, causing a loss of coolant. Failing to…

The 4 Most Common Cummins 5.9L Engine Problems
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The 4 Most Common Cummins 5.9L Engine Problems

The Cummins 5.9L “B-Series” diesel engine was produced from 1984 up until 2007. First generation versions were named the 6BT but also commonly referred to as the 12v, or 12-valve. Each cylinder had 2 valves, hence the name 12-valve. Midway through 1998, the 6BT was replaced with the ISB, which stands for “Interact System B”….