Description

Turbochargers Direct Turbo For Cummins ISX ISX15 14.9L – Replaces 4955426 / 4309077 This turbocharger’s direct replacement turbocharger is engineered specifically for Cummins ISX and ISX15 14.9L diesel engines , offering dependable performance and OEM-equivalent fitment. Manufactured using precision-balanced rotating assemblies and high-strength materials, this turbocharger ensures consistent boost pressure, improved combustion efficiency, and long service life under demanding operating conditions. Designed as a direct replacement for Cummins turbo part numbers 4955426 and 4309077 , this unit helps restore lost horsepower, torque, and throttle response caused by worn or failed turbochargers. It is suitable for long-haul trucks, vocational vehicles, and fleet operations where durability and reliability are critical. Each turbocharger is tested for airflow, boost performance, and structural integrity, making it an ideal solution for engine rebuilds or turbo replacement without modification. PRODUCT FEATURES & COMPONENTS Complete turbocharger assembly Precision-balanced compressor and turbine wheels Heavy-duty bearing and seal system High-temperature turbine housing OEM-equivalent airflow and boost performance Direct-fit replacement design ENGINE COMPATIBILITY ✅ Cummins ISX 14.9L ✅ Cummins ISX15 14.9L Replaces OEM Part Numbers: 4955426 4309077 (Always confirm engine serial number and turbo reference before ordering.) VEHICLE APPLICATIONS ✅ Heavy-duty highway trucks ✅ Long-haul tractors ✅ Fleet and commercial vehicles ✅ Vocational and industrial diesel trucks KEY FEATURES & BENEFITS ✔ Restores factory boost pressure and horsepower ✔ Improves throttle response and engine efficiency ✔ Reduces exhaust smoke caused by turbo wear ✔ Built for continuous heavy-duty operation ✔ Cost-effective alternative to OEM turbochargers ✔ Ideal for replacement or engine overhaul projects Frequently Asked Questions Which engines does this turbocharger fit? This turbocharger fits Cummins ISX and ISX15 diesel engines with a 14.9L displacement. What part numbers does this turbo replace? It replaces Cummins turbocharger part numbers 4955426 and 4309077. Is this turbocharger OEM or a replacement? This is a premium-quality replacement turbocharger designed to meet or exceed OEM performance standards. Will this turbo restore engine performance? Yes, it restores factory boost pressure and improves horsepower, torque, and overall engine efficiency. Is professional installation recommended? Yes, professional installation is recommended to ensure proper fitment, lubrication, and long-term reliability.