GBR 812-12143 Fuel Injector

Reman Multi Port Fuel Injector for Ram Trucks

GBR remanufactured fuel injector Part Number 812-12143 is built for 2003 Dodge Ram 1500, Ram 2500, and Ram 3500 applications. It is a reman multi port fuel injector that follows OE-style fit, spray, and electrical requirements for direct replacement service.

Key Features

• Remanufactured OEM fuel injector from GBR
• Fits 2003 Dodge Ram 1500, Ram 2500, and Ram 3500
• Multi port fuel injector design for gasoline fuel delivery systems
• 100% tested under multiple operating conditions
• Verified for flow rate, spray pattern, coil resistance, form, fit, and function
• Includes new external seals and o-rings
• Part Number 812-12143 for catalog and service lookup

Product Details

GBR’s reman multi port fuel injector line is remanufactured in the USA using a 15-step process at a dedicated facility. Each injector is tested to confirm it meets or exceeds OE specifications for fuel delivery performance and electrical consistency. For Ram truck owners searching for a 2003 Dodge Ram 1500 fuel injector replacement, 2003 Dodge Ram 2500 fuel injector replacement, or 2003 Dodge Ram 3500 fuel injector replacement, Part Number 812-12143 provides a direct-fit service part for the listed applications. This part cross-references OE number 53032142AC for the same application.

Common Issues This Part Addresses

• Hard starting caused by inconsistent fuel delivery
• Rough idle from poor injector spray pattern
• Misfire concerns related to injector electrical resistance
• Fuel trim imbalance from restricted or uneven injector flow
• Driveability problems tied to worn injector seals and o-rings

Installation Notes and Tips

Confirm vehicle year, model, and injector application before installation. Replace the injector only on the confirmed Ram 1500, Ram 2500, or Ram 3500 application listed above, and follow factory service procedures for fuel system depressurization, connector inspection, and leak checks after installation. Part Number 812-12143 is a remanufactured fuel injector, so clean mating surfaces and verify proper seating of the new external seals and o-rings during service.

Quality Assurance

GBR remanufactures this injector in the USA and tests each unit across multiple operating conditions to verify OE-level flow, spray, resistance, form, fit, and function. The remanufacturing process is designed to return the injector to service-ready condition for the specified Dodge Ram applications.