GBR 921-120 Diesel Fuel Injector Driver Module

Ford Power Stroke IDM Replacement

GBR 921-120 is a remanufactured diesel fuel injector driver module for Ford Power Stroke 7.3L applications. It is rebuilt from a fully disassembled unit, with electronic components tested and faulty parts replaced with upgraded components.

This Reman Injector Driver Module line focuses on correcting common OE enclosure issues by replacing the case cover and updating the housing finish to help reduce water intrusion. The result is a tested replacement for Ford E-350 Super Duty, Excursion, F-250 Super Duty, and F-350 Super Duty diesel applications.

• Remanufactured injector driver module for Ford Power Stroke 7.3L diesel systems
• Electronic components tested during the remanufacturing process
• Faulty components replaced with upgraded parts
• Case cover replaced and enclosure powder coated to address water intrusion concerns
• 100% tested under multiple operating conditions before shipment
• Part number: 921-120

Detailed Product Overview

GBR 921-120 is built for diesel fuel injection control on select Ford trucks and vans equipped with the 7.3L Power Stroke engine. It is a reman Injector Driver Module that restores injector control function after electrical or enclosure-related failure. This part cross-references Ford service numbers such as XC3F12B599AA and 2C2Z12B599A for the same application.

Common Problems This Part Addresses

• No-start or hard-start condition related to IDM failure
• Intermittent injector control or misfire concerns
• Water intrusion damage in the module enclosure
• Electrical faults caused by worn internal components
• Driveability issues on Ford Power Stroke 7.3L diesel vehicles

Installation Notes

Compatible With 2003 Ford E-350 Club Wagon, N/A; 1999-2003 Ford E-350 Super Duty, N/A; 2000-2003 Ford Excursion, N/A; 1999-2003 Ford F-250 Super Duty, N/A; 1999-2003 Ford F-350 Super Duty, N/A; 1999-2002 Ford E-350 Econoline Club Wagon, N/A. Verify the original part number and review Technical Bulletin TB-0103-E before installation. Confirm connector condition, inspect for corrosion or moisture damage, and clear any stored diagnostic trouble codes after replacement.

Quality Assurance

Each unit is fully tested under multiple operating conditions before shipment. The remanufacturing process includes complete disassembly, electronic testing, replacement of failed components, and enclosure updates to help address a known OE failure mode.