Part #: 842-12371

GBR 842-12371 Fuel Injector

Reman Multi Port Fuel Injector
4 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$56.42Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Reman Multi Port Fuel Injector
Fitment: Mazda, 3
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of GBR Reman Multi Port Fuel Injector 842-12371

The GBR Reman Multi Port Fuel Injector 842-12371 is designed specifically for Mazda 3 models, providing reliable fuel delivery and engine performance. This fuel injector is a remanufactured component engineered to meet OEM specifications for efficient operation.

  • Compatible with Mazda 3 vehicles
  • Part number 842-12371 for precise identification
  • Remanufactured for consistent fuel injection performance
  • Multi port design for optimized fuel atomization
  • Meets or exceeds OEM standards for fit and function

Detailed Product Description

The GBR Reman Multi Port Fuel Injector 842-12371 is a critical component in the fuel injection system of Mazda 3 vehicles. It ensures accurate fuel delivery to the engine cylinders, which is essential for maintaining engine efficiency and emissions compliance. As a remanufactured part, it undergoes thorough testing and refurbishment to restore its original performance characteristics. The multi port design allows for precise fuel atomization, improving combustion and overall engine response.

Common Applications and Problem Resolution

  • Restores proper fuel delivery in Mazda 3 engines
  • Addresses rough idling or engine misfires caused by faulty injectors
  • Helps resolve poor fuel economy related to injector issues
  • Reduces engine hesitation during acceleration
  • Corrects uneven engine performance due to injector wear

Installation Notes and Tips

When installing the GBR Reman Multi Port Fuel Injector 842-12371, ensure the engine is cool and the fuel system is depressurized before removal. Use appropriate tools to avoid damage to the injector or fuel rail. It is recommended to replace injector seals and O-rings during installation to prevent leaks. Verify electrical connections are secure and free of corrosion for optimal injector operation.

Quality Assurance and Warranty

GBR remanufactured fuel injectors are tested to meet strict quality standards, ensuring reliable performance and durability. The Reman Multi Port Fuel Injector line is designed to provide consistent fuel delivery comparable to new OEM parts. Warranty coverage details should be confirmed with the distributor or manufacturer, as they may vary.

This part fits 4 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
2005Mazda3GX2.0LL4N/AAlways replace fuel filter when replacing injector, refer to Technical Bulletin TB-0119-EFS.; Reman Multi Port Fuel Injector
2005Mazda3i2.0LL4N/AAlways replace fuel filter when replacing injector, refer to Technical Bulletin TB-0119-EFS.; Reman Multi Port Fuel Injector
2004Mazda3GX2.0LL4N/AAlways replace fuel filter when replacing injector, refer to Technical Bulletin TB-0119-EFS.; Reman Multi Port Fuel Injector
2004Mazda3i2.0LL4N/AAlways replace fuel filter when replacing injector, refer to Technical Bulletin TB-0119-EFS.; Reman Multi Port Fuel Injector

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.