Cummins ISX Engines

Cummins ISX Engines

The Cummins ISX is one of the most popular diesel engines on the road today. At GRC, we sell new, used and reman Cummins ISX diesel engines at discounted prices.

The Cummins ISX did not replace the popular N14 until 2001, but the first ISX was actually built in 1998. Shortly thereafter, the ISX became Cummins’ premier on-highway engine. Due to stricter EPA laws and regulations, the N14 was eventually phased out and became an obsolete line of engines.

Since the launch of the ISX, it has had a lot of innovations for Cummins. The “IS” in ISX stands for “interact system”, which was a name Cummins utilized due to the new innovative fuel system. This fuel system is an HPI (High-Pressure Injection ) system, and since its debut, not only has it become more advanced with quicker processing, it has also increased fuel efficiency.

In 2002, the ISX15, also known as the “Signature” series, started production, and the ISX received a new, cooled Exhaust Gas Recirculation system that reduced the amount of NOx emissions made by the engine. The technology helped reduce the NOx particles through a process that takes the engine’s exhaust and recirculates it back to the intake chamber. The ventilated exhaust lowers the combustion chamber temperature.

Over time, there were a few changes made to the ISX. One of which is the change made in the ISX CM870/871. Initially, it was built to function with a dual overhead camshaft, which was unique to the new style electronic control engine, and designed with mechanical injectors to increase injection pressure and deliver fuel.
This ISX was a complex injection system where one cam activated the injectors, and the second initiated the valve train. Hence, it didn’t last into the next ISX versions after 2010.

In 2010, the Cummins ISX underwent a redesign to comply with the 2010 EPA updated standard. As a result, the company focused on a single overhead camshaft as opposed to the dual overhead camshaft. This advancement was what led to the release of Cummin’s CM2250 model.

The model eliminated the use of the injector cam, and instead relied on the ECM to monitor pressure and timing. The ECM can activate each fuel injector up to five times per combustion cycle which is what’s known as a common rail fuel system, providing better fuel economy and power.

The differences between engine models is one of many reasons why it’s essential to have your engine serial number with you as you shop for new parts. It is possible that injectors that work on one version of the ISX probably won’t work on another, so you want to ensure you are getting the right parts the first time.

Check out our full inventory of ISX engines we have available today!