OE Quality
60-Day Returns

Standard Ignition FJ841 Fuel Injector
Overview of Standard Ignition Fuel Injector FJ841
The Standard Ignition FJ841 fuel injector is designed specifically for the Mazda B2300, ensuring precise fuel delivery and optimal engine performance. This new Mfi injector comes with essential components like an included o-ring for a secure fit.
- Compatible with Mazda B2300 fuel injection systems
- New Mfi type fuel injector for reliable operation
- White color/finish for easy identification
- Includes o-ring for proper sealing
- Male blade terminals with two connections
Detailed Product Description
The Standard Ignition FJ841 fuel injector is engineered to meet the specifications of the Mazda B2300's multi-point fuel injection (Mfi) system. Featuring a white finish, this new injector is built to deliver consistent fuel atomization and flow. It includes a pre-installed o-ring to ensure a tight seal within the fuel rail, preventing leaks and maintaining system integrity. The injector terminals are male blade type with two connections, compatible with the vehicle's wiring harness for straightforward installation.
Applications and Common Issues Addressed
- Restores proper fuel delivery in Mazda B2300 Mfi systems
- Resolves engine misfires caused by faulty injectors
- Eliminates rough idling and poor acceleration
- Prevents fuel leaks with included o-ring seal
- Improves fuel efficiency by maintaining correct spray patterns
Installation Notes and Tips
When installing the Standard Ignition FJ841 fuel injector, ensure the o-ring is properly seated to avoid fuel leaks. Disconnect the battery before installation to prevent electrical shorts. Verify the male blade terminals align correctly with the vehicle’s wiring harness connectors. It is recommended to inspect the fuel rail and clean any debris before fitting the new injector to maintain optimal performance.
Quality Assurance and Warranty
Standard Ignition manufactures the FJ841 fuel injector to meet OEM standards for fit, form, and function. This new injector undergoes rigorous testing to ensure durability and reliable operation within the Mazda B2300 fuel injection system. Warranty coverage details are provided by Standard Ignition and typically cover defects in materials and workmanship under normal use.
| Brand | Standard Ignition |
|---|---|
| Part Number | FJ841 |
| Color | White |
| Fuel Injector Type | MFI Injector |
| Fuel Type | Gas |
| New or Reman | New |
| Notes | Includes O-Ring |
| System Type | MFI |
| Terminal Gender | Male |
| Terminal Type | Blade |
This part fits 1 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2001 | Mazda | B2300 | 2.3L | L4 | N/A | Performance fuel injector fits various vehicle makes and models. |
* 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.