Garrett 739619-5004S PowerMax GTP38R Ball Bearing Turbocharger

1999.5-2003 Ford 7.3L Powerstroke
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The Garrett 739619-5004S PowerMax GTP38R Turbocharger is a must have for any 99.5-03 7.3L Powerstroke owner that wants to get more out of their truck. Built with the Garrett exclusive Ball Bearing Cartridge, the GTP38R provides unbeatable response, efficiency and durability especially at elevated boost levels. As a “drop-in” replacement, this turbocharger mounts to the factory pedestal and retains the use of OE intake and exhaust systems.

The GTP38R PowerMax features an 88mm compressor wheel that provides 35% more flow than the 80mm wheel found on your stock turbo. Also included is a ported shroud housing that improves compressor flow range and surge control. The included 1.00 A/R housing allows for free flowing exhaust with reduced back pressure and can even reduce exhaust gas temperatures up to 200 degrees.

While this turbocharger is suitable as a replacement for factory equipment, it is recommended that additional fueling upgrades such as aftermarket tuning or injectors are installed or already in use. Includes turbo, 4” inlet hose, band clamp, oil inlet o-ring, oil outlet o-ring, & installation instructions. Fits F-250/350 & Excursion.

  • “Drop-In” Replacement
  • Max Recommended Boost: 40 PSI
  • 88mm Comp. Wheel
  • 1.00 A/R Turbine Housing

Note from Garrett regarding shaft play:
When the Powermax turbo is new, or has not operated for a long period of time allowing most of the oil to drain out, the rotating assembly will move more in the radial direction because there is no oil in the center housing. This condition is normal. As long as the shaft wheel spins freely and the wheels don't contact their respective housings, the assembly will function properly.

Additional Information

Download Install Sheet
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Customer Reviews - Include your order number for a chance to win a $100 GiftCard

(138 Ratings, 15 Reviews) Average Rating:
Jason Rudd (Leesburg, Florida) 6/20/2015 6:03 PM
Installed this turbo on my 99 F-350 in a couple of hours and cant believe what kind of gains in throttle response and power I got out of it. All I can really say is WOW!!!!!!!! I would like to add a few things that might help people out in the future: 1. Spending $75 and ordering 3 new v-clamps will save you time and LOTS of headache. 2. I also noticed some people saying they did not get the power gain they expected and I didn't at first either. These 7.3 trucks are getting old and most likely the boost solenoid/wastegate solenoid/ vacuum solenoid(depending on what you want to call it) is getting weak like it was in my truck. It is a dealer only part Ford Part #F81Z6C673AA and it costs about $45. Doubled my boost by putting a new solenoid in:)
jerry (az) 4/14/2013 9:27 PM
After installing intake and exhaust I was getting turbo surge and waste gate chatter also would run at 1200 degrees on steep climbs, now all I hear is the sweet whine of new turbo and quite a bit more power...also seems to run quite a bit cooler...can't wait to load up the 5th wheel!
Well worth the money!
Dave Thuesen (Jesup, Ia.) 6/5/2012 6:42 PM
I have a 2002 F350, edge Evolution, Afe intake, Terminator HPOP, Dual stack exaust. This truck ran awesome! I installed this ball berring turbo, test drove, and....I just bout filled my pants!!! Instant 19 lbs of boost! Sound is awesome too! I took 1st place at the Jesup pull last year and with this addition all I can say is wow! XDP is awesome to talk to and have great prices! This turbo should have been installed at the factory!!!!
James Gusman (Oceanside, CA) 3/13/2012 10:41 PM
I added this Garrett turbo with a AFE filter and Trans Command. My truck was the slowest on every grade, but now it pulls great! I was skeptical, but on my first test run my truck was at 100MPH and still accelerating.
ase cetified diesel tech
david smith (florida) 9/8/2011 2:40 PM
had an install problem and wasnt getting the power I was expecting took it out replaced a couple of clamps and boots WHAT A DIFFERENCE!!!!!Some serious power.Would tell anyone to get this for your truck especially if you have power mods. This turbo is a must.Thanks again XDP!