Garrett PowerMax GTP38R Turbo | 739619-5004S | 7.3L Power Stroke | New

Genuine Garrett PowerMax GTP38R ball bearing turbocharger, part number 739619-5004S, for 1999.5-2003 Ford 7.3L Power Stroke engines. This is a complete turbocharger assembly, not a bearing or cartridge. It mounts to the factory pedestal and retains the OE intake and exhaust systems, and it ships with the intake adapter hose, clamp, seals, and bolts.

Key Features:

• Garrett ball bearing cartridge in place of the factory journal bearing design
• Thrust bearing eliminated, removing a known failure point at elevated boost
• 88 mm GT compressor wheel flowing 33% more than the stock 80 mm wheel
• Ported shroud compressor housing for improved flow range and surge control
• 1.00 A/R turbine housing, reducing exhaust backpressure and exhaust gas temperature by up to 200°F
• Mounts to the factory pedestal with OE intake and exhaust retained

Specifications:

• Part number: 739619-5004S
• Brand: Garrett
• Product line: PowerMax
• Turbocharger model: GTP38R
• Condition: New
• Bearing system: Ball bearing cartridge
• Compressor wheel: 66 mm inducer, 88 mm exducer, GT series
• Compressor housing: Ported shroud
• Turbine housing: 1.00 A/R
• Maximum recommended boost: 40 psi
• Engine: Ford 7.3L Power Stroke
• Included: Turbocharger, intake adapter hose, clamp, seals, mounting bolts
• Core: No core charge

Compatibility / Fitment:

Fits 1999.5-2003 Ford F-250, F-350, and Excursion with the 7.3L Power Stroke.

Fitment gate — 1999.5 and later only:

Earlier 1994-1999 7.3L trucks use a different turbocharger and pedestal arrangement. Confirm your build date rather than model year, since 1999 was a split year.

Fueling note: this turbocharger flows more air than the factory unit. Getting the benefit of that flow generally requires supporting fueling — tuning, injectors, or both. Installed on an otherwise stock truck it will still function, but the gains will be limited.

Before you install: on a new PowerMax turbo, or one that has sat long enough for the oil to drain out of the center housing, the rotating assembly will show more radial movement than a journal bearing turbo. This is normal for a ball bearing cartridge. As long as the shaft spins freely and the wheels do not contact the housings, the unit is correct.

Conclusion:

The Garrett PowerMax GTP38R is a complete drop-in ball bearing turbocharger for 1999.5-2003 Ford 7.3L Power Stroke trucks, flowing 33% more than stock through an 88 mm compressor wheel and running a 1.00 A/R turbine housing that can cut exhaust gas temperatures by up to 200°F. It bolts to the factory pedestal, ships with no core charge, and is built by the company that made the original turbocharger for this engine.