Seal Your Fuel System. Prevent Leaks. Keep Driving.

The DIESELR 5/16" 9th Injector Plug is designed specifically for 2023–2025 Ford Powerstroke 6.7L engines. Often called the 9th injector block-off plug, this high-quality component seals the unused injector fuel port—eliminating the risk of fuel leaks and pressure loss.

Made from fuel-grade, corrosion-resistant materials, this plug handles the heat and pressure of modern diesel systems without breaking down. It’s a direct-fit, no-hassle install that keeps your truck running clean and consistent.

If you’re running custom tunes or maintaining your fuel system, this is a must-have part to finish the job right.

Features:

Fits 2023–2025 Powerstroke 6.7L engines
5/16" size – precise OE-style fit
Seals the "9th injector" fuel port
Prevents fuel leaks and pressure drop
Built from fuel-resistant, heat-tolerant material
Simple install — no tuning or calibration needed
Designed for use with custom tuning and fuel system upgrades
Trusted by diesel mechanics and serious truck owners

Block Off the 9th Injector Port – Powerstroke 6.7L

The 9th injector plug Powerstroke 6.7L trucks require is right here. Designed for 2023–2025 Ford 6.7L Powerstroke engines, this 5/16" injector port plug blocks off the unused fuel line reliably and securely. Whether you're running custom tuning or simplifying your fuel system, this is a necessary component.

Crafted from durable, fuel-resistant materials, this plug holds up to heat, pressure, and vibration without failure. It provides a leak-proof seal to help maintain optimal fuel rail pressure and drivability.

Why It Matters

Fits all 2023–2025 Ford Super Duty 6.7L Powerstroke models
Seals the “9th injector” fuel port reliably
OE-style 5/16" direct fit
Built from heat-tolerant, fuel-grade materials
No tuning required – install and go
A must-have for tuned trucks and fuel system service

Whether you're deleting the 9th injector* or blocking off an unused port, the DIESELR 9th injector plug for Powerstroke 6.7L ensures your system stays sealed and secure. Trusted by diesel mechanics and serious owners alike.

Application:

This plug is essential when removing or bypassing the 9th injector setup on 2023–2025 Ford Super Duty trucks running the 6.7L Powerstroke. Whether you're doing routine maintenance or installing tuning upgrades, this is the finishing touch to seal your system.

2023-2025 Powerstroke 6.7L Fuel Delivery

DIESELR 9th Injector Plugs - 5/16" (2023-2025 Powerstroke 6.7L)