Fleece Performance
Fleece Performance Fuel Injector Rail Adapter
Fleece Performance Fuel Injector Rail Adapter
Part number: 1FZLJ
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- Tracking emailed when it ships
- Free fitment check before you order
Fleece Performance Fuel Injector Rail Adapter. Fuel injectors spray a measured amount of fuel into the engine.
Key features
- 7L Cummins Fuel Rail Fitting Adapter (14mmx1.5 to 18mmx1.5 - 3.5mm ID)
Specifications
- Brand: Fleece Performance
- Part type: Fuel injector
Fitment
This listing does not name specific vehicles. Match the part number and the specifications with the part you are replacing.
What it does
Larger injectors are needed when an engine makes more power, together with a tune. Air and fuel parts decide how well the engine breathes and how cleanly it runs, so the right part restores smooth running and can support more power on a modified engine.
Installation & tips
- Use new O-rings and lubricate them lightly with clean oil before installation.
- Fuel filter: Protects new injectors.
- Work on a cool engine with the vehicle secured, and use a service manual for your vehicle for torque specs and procedures.
FAQ
Can I install it myself?
Many owners do this job at home with basic tools and a service manual for their vehicle. If you are not sure, have it fitted by a qualified mechanic.
What should I check before ordering?
Compare the part number, specifications and fitment on this page with your vehicle and with the part you are replacing.
Before you order
- Measure the part you are replacing and compare it with the specifications above.

Before you order: fitment and what to plan
Fuel injectors spray a measured amount of fuel into the engine.
Fitment notes
- Specs, lead time and warranty come from Fleece Performance and can change. The details above this guide are the latest we have.
Not sure it fits? Tell us exactly what you drive and we'll confirm fitment first. It's free and saves a return.
Ask about fitmentPlan the whole job
- Fuel filter. Protects new injectors.
More for your car: Fuel Injectors · All Fuel Injectors · Fuel & air intake
Questions about fuel injectors
Will this fit my car?
Do bigger injectors need a tune?
Where do specs and warranty details come from?
Questions & answers
No questions yet about this part. Ask about fitment, what's in the box or installation and we'll answer here.