VIPER PhatShaft 63 Turbo 12cm Housing

Features:

• Extended tip 63mm forged milled compressor wheel
• 12cm housing modified for higher performance
• 360-degree thrust bearing for added reliability
• Enlarged wastegate chamber for improved flow
• Maximized wastegate ports for better control
• Modified exhaust nozzle angle for efficiency
• Dual grooved high-performance journal bearings
• Adjustable boost elbow included
• Ideal for mild to aggressive Cummins builds
• Designed for 1994-2002 5.9L Cummins engines
• Durable design supports higher boost levels

This Turbo Was Built To Pull Hard And Run Strong

If you're ready to wake your Cummins up and put serious power behind your pedal, the Viper PhatShaft 63 is exactly what you've been waiting for. Designed with performance enthusiasts in mind, this turbo is ideal for the truck owner who's upgraded their fueling system and wants a responsive, hard-hitting spool that doesn’t quit under pressure. Whether you're towing heavy loads or pushing limits at the track, the 63mm extended tip compressor wheel delivers airflow that's ready to handle it all. The 12cm housing is tuned for quick response and powerful mid-to-high range performance. It’s also a great match for those running aggressive tuning and higher fueling demands. Plus, thanks to the upgraded wastegate and boost control, you’ll stay within safe parameters without sacrificing boost. If you're building a truck that works as hard as it plays, this turbo belongs under your hood.

Engineered For Durability And Tuned For Efficiency

The Viper PhatShaft 63 is a precision-engineered turbocharger designed to offer both strength and consistent performance for the 1994-2002 5.9L Cummins. At its core is a 63mm forged milled compressor wheel, capable of delivering increased airflow and efficient boost levels even under heavy load. Supporting this setup is a 360-degree thrust bearing system that improves durability and reduces wear during high-stress use. Industrial Injection has enhanced the 12cm housing by enlarging the wastegate chamber and optimizing the exhaust nozzle angle to streamline flow and minimize drive pressure. Dual grooved high-performance bearings ensure reliable function and long service life, while the included adjustable boost elbow allows for precise boost tuning to match your build’s needs. This turbo is best suited for trucks with mild to aggressive modifications, especially those that see real-world towing, hauling, or performance driving scenarios. It's a balanced combination of proven engineering and real power delivery.

Fits: 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 Dodge RAM 2500/3500 5.9L Cummins

Notes:

• Designed for mild to aggressively modified Cummins engines
• Features a 63mm extended tip forged milled compressor wheel
• 12cm housing is modified for optimized performance
• Includes 360-degree thrust bearing for increased reliability
• Wastegate chamber and ports are enlarged for better flow
• Exhaust nozzle angle is modified to reduce drive pressure
• Turbo includes dual grooved high-performance bearings
• Adjustable boost elbow included for precise tuning
• Not designed as a direct replacement for stock turbos
• Best paired with upgraded fueling and tuning systems