GBR 842-12320 Fuel Injector

Reman Multi Port Fuel Injector for Mazda

GBR 842-12320 is a remanufactured multi port fuel injector built for specific Mazda applications. It is remanufactured in the USA using a 15-step process and tested across multiple operating conditions to verify flow rate, spray pattern, coil resistance, form, fit, and function.

This reman fuel injector is a direct replacement for select Mazda 3, Mazda 5, and Mazda 6 applications. Part number 842-12320 is supplied with new external seals and o-rings for service-ready installation.

Key Features

• Remanufactured OEM-style fuel injector for multi port fuel injection systems
• Built and tested in the USA using a 15-step remanufacturing process
• Verified for flow rate, spray pattern, coil resistance, form, fit, and function
• Includes new external seals and o-rings
• Cross-reference part numbers: 0280156193 and L36113250

Detailed Description

GBR 842-12320 is a reman multi port fuel injector for Mazda vehicles that require an OE-style replacement with confirmed electrical and spray performance. It is engineered for direct-fit service on 2003-2004 Mazda 6, 2004-2005 Mazda 3, 2005 Mazda 6, and 2006-2007 Mazda 5 applications, with fitment notes that vary by transmission and configuration. If you are replacing a fuel injector on a Mazda 3, Mazda 5, or Mazda 6, this part number 842-12320 provides a remanufactured solution matched to the listed applications.

The GBR remanufactured fuel injector line focuses on restoring OEM injector performance through inspection, cleaning, rebuilding, and testing. That makes this injector a practical choice when addressing drivability concerns tied to fuel delivery on compatible Mazda models.

What It Helps Address

• Rough idle caused by inconsistent injector spray
• Hard starting related to poor fuel delivery
• Misfire conditions tied to injector flow imbalance
• Fuel trim issues from a worn or restricted injector
• Loss of performance from an injector that no longer meets OE specifications

Installation Notes and Tips

Confirm the exact Mazda year, model, transmission, and configuration before ordering. Fitment includes 2003-2004 Mazda 6 without roof mounted antenna, 2005 Mazda 6 for auto trans excluding California, 2005 Mazda 6 for manual trans, 2004-2005 Mazda 3, and 2006-2007 Mazda 5. For 2005 Mazda 6 applications, follow the listed technical bulletin guidance and replace the fuel filter when the injector is replaced. Use the included new seals and o-rings during installation, and verify connector and rail fitment before final assembly.

Quality Assurance

Each GBR remanufactured injector is tested under multiple operating conditions to confirm OE-level performance targets for flow, spray pattern, coil resistance, form, fit, and function. Part number 842-12320 is built from OEM fuel injector cores and remanufactured to meet the requirements of the listed Mazda applications.