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Description
Garrett 739619-5004S New Ball Bearing PowerMax GTP38R TurbochargerThe Garrett 739619 5004S New Ball Bearing PowerMax GTP38R Turbocharger is a must have for any 1999. 5 2003 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
The Garrett 739619-5004S New Ball Bearing PowerMax GTP38R Turbocharger is a must-have for any 1999.5-2003 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 33% more flow than the 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.
Features:
- Drop-In Replacement
- 1.00 A/R Turbine Housing
- 33% More Flow Than The Stock
- Max Recommended Boost: 40 PSI
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.
Garrett 739619-5004S Performance Comparison Sheet
| Compressor | Turbine |
|||||||||
| Ford Powerstroke Upgrade |
Turbo PN |
HP* |
Inducer |
Exducer |
Trim |
A/R |
Inducer |
Exducer |
Trim |
A/R |
| 1999.5 Ford 7.3L Powerstroke |
739619-5004s | 590 | 66mm |
88mm |
56 |
1.00 |
76mm |
68mm |
79 |
1.00 |
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Exchange/Return Notes
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4.3 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
Well made, light fabric. Waist doesn't roll.
These bamboo underwear really do keep you cool.
They fit true to size, and wear easily. the wide elastic waist band doesn't roll on me.
They are comfortable to wear, washed and dried easily.
The material has some stretch to it, but not a lot.
Well made, no stray strings. Perfect fit for me.
Just what I was looking for.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Good quality, smooth feel
I got these briefs so recently that have washed just one pair so far. First off, these are very comfortable, the material is soft & bordering silky, good quality sewing. Wash well and minimal if any shrinkage. They do come a bit wrinkled from the dryer but hey, these are underwear and will go on smoothly. If it were a t-shirt, I would look sloppy. I feel the sizing is accurate. No rolling and these don't announce themselves under clothing. Planning on getting more of these boxers and replacing my old panties.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2026
★★★★★ 4
A little snug on the thighs
Size: Medium, Color: Multicoloured G (5-pack)
Super comfy, soft and thin. For reference, I'm 5'6", 135, athletic build. I bought medium. I almost returned them because I thought they were a bit too snug on my thighs, and my thighs are not large at all. I was concerned about panty lines under snug clothing. But, because they're thin, I figured they would probably stretch, so I kept them. So far, I've only worn them under a night shirt, but they're super comfortable and they dont ride up at all. Very nice, but if your thighs are a little thick, you probably won't like them.
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Reviewed in the United States on August 29, 2025
★★★★★ 5
Functional + Sexy
Size: Small, Color: Multicoloured E-(5-pack), Size: Small, Color: Multicoloured E-(5-pack)
Not only do these feel good, my husband can’t keep his hands off me. They fit so good and are soft. I change into these to sleep but also just use them as shorts to wear around the house. They’re comfortable and don’t slide around. I got a size small and I’m 100lbs.
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Reviewed in the United States on April 13, 2026
★★★★★ 5
Finally!
Size: X-Large, Color: All Black D (5-pack)
Finally, comfortable underwear that don’t end up giving me a wedgie. I have a round booty and most cuts of underwear end up shifting as I walk and sit. The hem of the underwear comes right under my cheeks and the lightweight material ensures there’s no panty line and no shifting to where I don’t want them! I’m definitely purchasing more.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
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