The OTR Fuel Injector Assembly is designed to meet or exceed OEM specifications. It is engineered with high precision to ensure accurate and consistent fuel delivery. This fuel injector assembly is designed to provide reliable performance and long-lasting durability. It is easy to install and is backed by a limited warranty. With this fuel injector assembly, you can be sure that your Mack engine will be running smoothly and efficiently. FleetPride is your First Click in Heavy Duty®.