1999.5-2003 FORD 7.3L POWERSTROKE DIESEL INJECTOR BODY CODE AD - REMANUFACTURED
Restore factory performance and smooth engine operation on your 7.3L Powerstroke with this high-quality remanufactured AD-code fuel injector. Each injector is fully remanufactured to OE standards, flow-tested, calibrated, and built to meet the precise fueling demands of the 1999.5–2003 Powerstroke platform. Ideal for stock daily drivers, work trucks, and towing applications, these injectors ensure reliable starts, consistent power delivery, and improved overall efficiency.
What’s Included
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(1) Remanufactured AD-Code Fuel Injector
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New O-Rings & Seals Pre-Installed
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Fully Bench-Tested & Flow-Matched
Features & Benefits
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Restores lost power, fuel economy, and drivability
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OE-equivalent remanufacturing process
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Precision flow-matched for optimal cylinder balance
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Improved cold starts and throttle response
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Direct plug-and-play replacement for AD-code applications
Compatibility
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1999.5 Ford F-250 / F-350 / F-450 / F-550 7.3L Powerstroke
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2000 Ford F-250 / F-350 / F-450 / F-550 7.3L Powerstroke
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2001 Ford F-250 / F-350 / F-450 / F-550 7.3L Powerstroke
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2002 Ford F-250 / F-350 / F-450 / F-550 7.3L Powerstroke
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2003 (Early) Ford F-250 / F-350 / F-450 / F-550 7.3L Powerstroke
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1999 - 2003 International T444E Engine S/N 1313828 & Up
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1999 - 2003 Ford F-E Series S/N 661496 through 896812
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2000 - 2003 Ford Excursion S/N 661974 through 896812
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Designed specifically for AD-code injector applications
This remanufactured AD-code injector offers a reliable, cost-effective replacement to restore proper fueling, smooth operation, and consistent power delivery.
Shipping Disclaimer
✔️ We ship via USPS, UPS, and FedEx.
✔️ Carrier selection is based on package size, weight, and destination.
✔️ Expedited shipping options available, call to check freight options
✔️ Orders are processed within 1 business day (Monday–Friday).
✔️ Orders placed on weekends or holidays will be processed on the next business day.
✔️ Tracking information will be provided once the item ships.
✔️ Shipping to PO Boxes, APO/FPO may be limited based on carrier restrictions.
California Proposition 65 Warning
This product contains chemicals known to the State of California to cause cancer and reproductive harm.
For more information, visit www.P65Warnings.ca.gov
FORD INTERCHANGE # : F81Z9E527CRM,5C3Z9VE527BRM
International Part # :1823751C91,1823751RX91,1831487C92,1831488C1,1831489C1,1831550C1,1831551C
Injector Body Code: AD
Type: Split-shot HEUI (Hydraulic Electronic Unit Injectors)
Flow Rate: Approximately 140-160cc at 3000 psi
Nozzle Size: Enhanced nozzles for improved fuel atomization and flow
Fuel Pressure: Operates at around 50-65 psi
Install Specs:
Injector hold-down bolt: 120 inch-lbs.
Rocker Arm Pedestal 20 lb-ft.
Injector Spill Deflector 9 lb-ft.
Ensure the injector bore and injector seat are completely clean before installation. Debris/carbon can prevent injectors from sealing correctly which can create leaks or poor running complaints
To Determine if your Truck is an Early or Late 1999 Model Year, Locate The Tag on The Driver Side Door. Vehicles Built Before 12/7/98 Are Considered Early 1999 And Vehicle Built After 12/7/98 Are considered Late 1999.
Core Policy: This injector includes a $50 core deposit for each injector ordered. This is 100% refundable upon receipt of your old unit(s). Cores must be the exact application that was ordered for full credit. Cores that are physically damaged (cracked, melted, or broken) will not be refunded. There should not be any visible signs of rust, fire damage, water damage, or excessive force on any and all parts. Missing parts, if applicable, will void core refund. Cores must be returned within 30 days of purchase date for full refund. After 30 days, the no core refund will be issued. No exceptions.
