Your Cummins ISB 5.9L is idling rough, misfiring when trying to accelerate or it’s consuming more fuel than normal. These are all symptoms of a failure in the fuel system. If you shop the competition, these problems could arise weeks, or days, after installation. Why? Our competitors are keen at making parts with a crisp, clean shine. But they aren’t experts at getting the necessary power to last another million miles. At Highway and Heavy Parts, you'll get a 0432193645 Fuel Injector that has been manufactured in an ISO 9001:2015 certified facility, ensuring quality and consistency for your ISB 5.9L. HHP offers only premium aftermarket parts for your ISB 5.9L at a much lower price compared to the OE manufacturer to help put money back in your pocket.