Ford 7.3L Power Stroke HEUI Injector | Code AA | 1994-1998 | Torque Diesel | Remanufactured

Torque Diesel remanufactured HEUI fuel injector, code AA, for 1994–1998 Ford 7.3L Power Stroke and Navistar T444E engines. This is the single-shot Federal injector — 1999–2003 trucks use split-shot injectors that do not interchange. Navistar references it as 1821836C3 and Ford as F81Z-9E527-DRM. The 7.3L is a V8 and takes eight injectors. Every unit is completely disassembled, inspected, and 100% end-of-line tested to OEM specification.

Key Features

• Completely disassembled and inspected — any component outside OEM spec is replaced, then components are cleaned and re-inspected
• 100% nozzle replacement on every unit
• Assembled by factory-trained technicians
• 100% end-of-line tested on OEM test equipment, to OEM specification, by OEM-trained technicians
• Restores OE fuel atomization and fuel delivery
• Remanufactured in the U.S. and Mexico, backed by more than 80 years of diesel fuel injection experience

Specifications

• Calibration code: AA
• Injection type: Single shot (Federal)
• Navistar OE reference: 1821836C3
• Ford OE reference: F81Z-9E527-DRM
• Component type: HEUI fuel injector
• Condition: Remanufactured
• Fuel system: HEUI — hydraulically actuated, electronically controlled unit injector
• Engines: Ford 7.3L Power Stroke and Navistar T444E, 444 cu in V8
• Engine serial number range: 500 to 460,194
• Sold as: each (eight required per engine)

Warranty

Two-year unlimited-mileage warranty covering defects in materials and workmanship, plus up to $750 in labor coverage. Claims are handled through your local M&D location or the M&D warranty team.

Compatibility & Fitment

• Ford F-Series, 1994–1998 (Federal / 49-state)
• Ford F-Series, 1994–1996 (California emissions)
• Ford E-Series, 1994–1996
• Navistar T444E, 1994–1996

Fitment gate — this is the code AA single-shot injector. 1999–2003 7.3L engines use split-shot injectors in codes AB, AD and AE, which will not work in place of this one. Read the code off the injector you are removing and confirm it is AA before ordering.

Second fitment gate — engine serial number range is 500 to 460,194. Confirm your ESN falls within that range before ordering a set.

Third fitment gate — California emissions trucks are covered through 1996 only, while Federal trucks run through 1998. Confirm which your truck is if it is a 1997 or 1998 model.

Installation note — HEUI injectors depend on correct fuel supply pressure. Confirm fuel pressure is within 60 to 70 psi before and after installation, since low supply pressure will shorten injector life.

Also referenced as: 1816187C3, 1818259C2, 1821752C1, 1822800C95, 1822801C91

Conclusion

This is a Torque Diesel remanufactured code AA single-shot HEUI injector for 1994–1998 Ford 7.3L Power Stroke and Navistar T444E engines. Full disassembly, 100% nozzle replacement, and end-of-line testing to OEM specification restore the fuel atomization and delivery the engine depends on. Confirm your code is AA and your engine serial number falls within range before ordering, and check fuel supply pressure as part of the job.