Garrett PowerMax GTP38R 7.3L Power Stroke Turbo Upgrade suitable for Ford F-250, F-350 and Excursion 1999.5-2003

Garrett PowerMax GTP38R 7.3L Power Stroke Turbo Upgrade suitable for Ford F-250, F-350 and Excursion 1999.5-2003

Garrett PowerMax GTP38R turbocharger suitable for the 7.3L Power Stroke diesel in the Ford F-250, F-350 and Excursion. It has a ball bearing cartridge for response, efficiency and durability, and doing away with the thrust bearing removes a common failure at high boost. The 88mm GT compressor wheel flows 33% more than the stock 80mm wheel. The kit’s 1.00 A/R turbine housing lowers back pressure and can drop exhaust gas temperatures by up to 200°F. It supports up to 590HP.

🚗 Suitable for:

• Ford F-250 and F-350 7.3L Power Stroke (1999.5-2003)
• Ford Excursion 7.3L Power Stroke (1999.5-2003)

📦 What’s Included:

• 1x Garrett PowerMax GTP38R turbocharger (part number 739619-5004S)
• 1.00 A/R turbine housing
• Fitting accessories as pictured

🔧 Fitment Details:

• Direct-fit stage 1 upgrade for the factory turbo
• Maximum recommended boost is 40psi
• We recommend dyno tuning for best results

⚙️ Why Choose Garrett PowerMax:

• Ball bearing cartridge, with no thrust bearing to fail at high boost
• 88mm GT compressor wheel flows 33% more than the stock 80mm wheel
• 1.00 A/R turbine housing for lower back pressure and lower exhaust gas temperatures
• Supports up to 590HP

📐 Specifications:

• Turbo model: GTP38R, stage 1
• Power capability: up to 590HP
• Compressor wheel: 66mm inducer, 88mm exducer, 56 trim, 1.00 A/R
• Turbine wheel: 76mm inducer, 68mm exducer, 79 trim, 1.00 A/R
• Maximum recommended boost: 40psi

📄 Garrett Product Flyer:
See Garrett’s own flyer for this turbo, with the compressor map and full specifications.
View the Garrett PowerMax flyer, page 1

❓ FAQs:
Q: Is this a direct bolt-on?
A: Yes. It is outline interchangeable with the factory turbo, so it fits in place of the original with no fabrication.

Q: Do I need a tune?
A: Garrett’s power figure is the turbo’s capability from flow testing, and real results depend on your vehicle’s modifications and tune. We recommend dyno tuning for best results.