SPOOLOGIC Turbo Rebuild Kit 6+6 Billet Turbine Shaft Unison Ring 15mm Vanes

The SPOOLOGIC Advanced Turbo Rebuild Kit SL-900-003-K64 is a bundled, complete rebuild package for 2003-2007 Ford F-250 F-350 F-450 F-550 Super Duty 6.0L Powerstroke; 2004-2010 Ford E-350 E-450 Econoline 6.0L Powerstroke; 2003-2005 Ford Excursion 6.0L Powerstroke Garrett GT3788VA PowerMax applications. It combines a SPOOLOGIC base rebuild kit with a new 6+6 billet compressor wheel, turbine shaft and unison ring with 15mm vanes, so you have everything needed to restore the turbo to factory performance in one box.

Features

• 6+6 billet compressor wheel
• Turbine Shaft
• Extreme duty journal bearings and spacer
• 360° thrust bearing and collars

What's Included

• 1 SPOOLOGIC Basic Turbo Rebuild Kit — SL-210-003
• 1 SPOOLOGIC 6+6 Billet Compressor Wheel — SL-220-014
• 1 SPOOLOGIC 10 Blade Turbine Shaft — SL-240-003
• 1 SPOOLOGIC Unison Ring — SL-270-001
• 1 SPOOLOGIC Set of 9 15mm Vanes — SL-270-002

Fitment

• 2003-2007 Ford F-250 F-350 F-450 F-550 6.0L Powerstroke
• 2004-2010 Ford E-350 E-450 Econoline 6.0L Powerstroke
• 2003-2005 Ford Excursion 6.0L Powerstroke
• For GT3788VA PowerMax Turbo Only

⚠️ Fits the Garrett GT3788VA PowerMax turbocharger only. Match the installed turbocharger before ordering.

Common Garrett GT3788VA PowerMax Failure Symptoms

If your 6.0L Powerstroke turbo is showing any of these symptoms, a full rebuild is recommended:

• Variable vane geometry sticking or hanging — slow spool, lazy throttle response, soot buildup in the cartridge
• Excessive shaft play or oil seal leakage — blue smoke at idle, oil residue in the intercooler boots, end-play beyond OEM tolerance
• Bearing failure — whining, grinding, or whistling that scales with RPM
• Loss of boost and reduced power — turbo not building rated boost under load, derate codes, excess EGT

Advanced Rebuild Kit — Everything in One Box

This package supplies the rebuild components listed in What’s Included for the Garrett GT3788VA PowerMax turbocharger.

Balancing Notes

The compressor wheel and turbine shaft are individually balanced. Balancing the assembled rotating assembly is recommended best practice.

OEM and Manufacturer References

Reference numbers associated with this turbocharger platform and its repair components:

• Garrett: 740659-0010

⚠️ Emissions Notice

Not CARB approved. Not legal for sale or use in the state of California.

⚠️ DIY Product — All Sales Final, No Warranty, No Returns

This SPOOLOGIC turbocharger repair product is intended for experienced turbo builders and qualified technicians. Proper installation requires suitable tools, careful inspection, and correct assembly. All sales are final—no warranty, returns, or exchanges. Confirm compatibility before ordering. See the SPOOLOGIC Warranty Policy for details on products sold without a warranty.