GBR 812-12128 Fuel Injector

Reman Multi Port Fuel Injector for Jeep and Dodge

GBR remanufactured OEM fuel injector Part Number 812-12128 is built for direct replacement in select Jeep and Dodge applications. It is remanufactured in the USA using a 15-step process and tested under multiple operating conditions to verify flow rate, spray pattern, coil resistance, form, fit, and function.

This reman multi port fuel injector is a practical OE-style replacement for 1999-2004 Jeep Grand Cherokee, 1999-2004 Jeep TJ, 1999-2004 Jeep Wrangler, 1999-2001 Jeep Cherokee, and 1999-2001 Dodge Ram 1500. Part number 812-12128 also cross-references 217-3127 and 4854181 for the same application.

Key Features

• Remanufactured OEM fuel injector for multi port fuel injection systems
• 15-step remanufacturing process performed in the USA
• 100% tested for flow rate, spray pattern, coil resistance, form, fit, and function
• Includes new external seals and o-rings
• Direct replacement for select Jeep and Dodge fuel injection applications

Application Details

Compatible With 1999-2004 Jeep Grand Cherokee, N/A; 1999-2004 Jeep TJ, N/A; 1999-2004 Jeep Wrangler, N/A; 1999-2001 Jeep Cherokee, N/A; and 1999-2001 Dodge Ram 1500, N/A. Use 812-12128 when replacing a worn or inconsistent injector in these vehicle-specific fuel injection systems.

Common Issues This Part Can Address

• Rough idle caused by uneven fuel delivery
• Hard starting related to injector wear or contamination
• Misfire concerns tied to poor spray pattern or flow variation
• Fuel trim imbalance from inconsistent injector performance
• Fuel seepage at the injector seal area

Installation Notes

Verify OE part number match and confirm vehicle fitment before installation. Clean the fuel rail and injector seating surfaces, and inspect the injector connectors and harness condition during service. New external seals and o-rings are included, but proper installation practices and leak checks are still required after replacement.

Quality Assurance

GBR remanufactured injectors are processed and tested to meet or exceed OE specifications for the listed performance and fitment criteria. Each unit is evaluated for consistent operation before release.