Description

The Garrett GTP38 turbocharger is a high-quality turbo replacement engineered for Ford 7.3L PowerStroke diesel engines used in Super Duty trucks such as F-250, F-350, and F-450. Compatible with OEM part numbers 991966C91 and 18255878C91 — along with associated replacements like 18255878C92, 1831339C91, and 1825878C91 — this GTP38 unit restores factory boost, improves combustion efficiency, and delivers reliable performance under heavy-duty conditions. Built with robust cast housings and precision-balanced internals, the GTP38 turbocharger is engineered to withstand heat, pressure, and long hours of operation typical of diesel-powered Super Duty trucks. This turbocharger installs as a direct-fit replacement , eliminating the need for modifications while maintaining OEM standards for performance and reliability. Ideal for fleet vehicles, towing rigs, and daily drivers alike, this Garrett GTP38 turbocharger helps return lost power, improve throttle response, and enhance overall engine efficiency. KEY FEATURES Genuine Garrett GTP38 turbocharger model Compatible with Ford 7.3L PowerStroke engines Direct-fit replacement for part numbers 991966C91 / 18255878C91 Restores original boost and engine performance Precision-balanced for smooth operation Heavy-duty construction built for diesel use Ideal for Super Duty trucks under load and towing APPLICATION Engine: Ford 7.3L PowerStroke Diesel Vehicles: Ford Super Duty (F-250, F-350, F-450) Model Years: Primarily 1999 & compatible with late-model 7.3L engines when matching part number (Always verify with your VIN or turbo tag to confirm exact fit.) PART NUMBERS OEM Turbo Part: 991966C91 , 18255878C91 Other Interchangeable Numbers: 18255878C92, 1831339C91, 1825878C91, 40-30095ON/R, 4030095ON/R