Boost your rig with the Engine & Performance Parts category for International 4700-4900 models. This selection includes top-tier products like fuel systems, turbos, exhaust components, and other critical engine upgrades to keep your truck running at its best. Explore high-performance diesel fuel pumps, mounting kits, and fuel heaters from trusted names like FASS to enhance fuel delivery and increase horsepower. For those looking to elevate engine performance further, this category features turbochargers, exhaust manifolds, and mufflers designed for popular engines such as the Cummins ISX, Detroit DD15, and Caterpillar C15. Whether maintaining your engine or upgrading for maximum performance, these parts and accessories deliver the reliability and power you need to keep your rig productive and efficient on the road.