Ford 7.3L Power Stroke Injector | Code AB Split Shot | 1997-1999 | Torque Diesel | Remanufactured

Torque Diesel remanufactured HEUI fuel injector, code AB, for 1997–1999 Ford 7.3L Power Stroke and Navistar T444E engines. This is the split-shot transitional injector, covering 1997 California-emissions trucks and early 1999 trucks. Because year coverage on this code is fragmented, the engine serial number is the reliable selector — this injector covers ESN 460,195 through 843,989. Navistar references it as 1825125C1 and Ford as F81Z-9E527-BRM. Every unit is completely disassembled, inspected, and 100% end-of-line tested to OEM specification.

Key Features

• Split-shot injector design, as fitted to California-emissions trucks from 1997 and to all trucks from 1999
• 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

Specifications

• Calibration code: AB
• Injection type: Split shot
• Navistar OE reference: 1825125C1
• Ford OE reference: F81Z-9E527-BRM
• 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: 460,195 to 843,989
• Sold as: each (the 7.3L is a V8 and takes eight injectors)

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, 1999
• Ford F-Series California emissions, 1997–1999
• Ford E-Series, 1997–1998
• Navistar T444E, 1997–1999
• Engine serial number 460,195 to 843,989

Fitment gate — check your engine serial number, not your model year. This code covers a narrow and fragmented set of years, and the serial range is the definitive test. Engines below 460,195 take the code AA single-shot injector; engines from 843,990 up take the code AD injector.

Second fitment gate — 1997 coverage applies to California-emissions trucks. A 1997 Federal 49-state truck takes the code AA injector instead. Confirm which emissions calibration your truck carries.

Installation note — HEUI injectors depend on correct fuel supply pressure. Confirm fuel pressure is within 60 to 70 psi as part of the job, since low supply pressure will shorten injector life.

Also referenced as: 1822803C1, 1823561C1, 1824582C94, 1824583C97, 1825126C1

Conclusion

This is a Torque Diesel remanufactured code AB split-shot HEUI injector for 1997–1999 Ford 7.3L Power Stroke and Navistar T444E engines, covering engine serials 460,195 through 843,989. Full disassembly, 100% nozzle replacement, and end-of-line testing to OEM specification restore the fuel atomization and delivery the engine depends on. Verify your engine serial number rather than relying on model year, since this code sits between two others in a narrow serial window.