GFB 5753 Fuel Rail Adaptor

The GFB 5753 Fuel Rail Adaptor by Go Fast Bits is designed specifically for Mitsubishi 4G63 engines (Evo IV–IX), providing a clean 1/8″ NPT port directly from the factory fuel rail.

This adaptor allows easy integration of aftermarket fuel system components such as the GFB FX-S Fuel Pressure Regulator (8050) or fuel pressure sensors without modifying factory fuel lines.

🔧 Key Features & Benefits

• Direct Fuel Rail Adaptor – Designed specifically for 4G63 Evo fuel rails
• 1/8″ NPT Female Port – Allows easy connection of fittings, sensors, or regulators
• Clean Installation – No cutting or modifying factory fuel system
• Precision Machined – Ensures reliable sealing and correct fitment
• Compact Design – Ideal for tight engine bay layouts

🚗 Vehicle Compatibility (Verified)

Suits Mitsubishi 4G63 engines including:

• Lancer Evolution IV (CN9A)
• Lancer Evolution V (CP9A)
• Lancer Evolution VI (CP9A)
• Lancer Evolution VII (CT9A)
• Lancer Evolution VIII (CT9A)
• Lancer Evolution IX (CT9A)

✔ Specifically designed for Evo IV–IX fuel rail applications

⚙️ Application & Setup

The GFB 5753 adaptor provides a 1/8″ NPT outlet, allowing multiple setup options:

• Fit a 1/8″ NPT male-to-male coupler (e.g. GFB 5739) to connect directly to an FX-S regulator
• Add a hose barb fitting (e.g. GFB 5740) for remote-mounted regulator setups
• Use for fuel pressure sensors or gauges

✔ Commonly used when upgrading fuel systems on turbocharged 4G63 builds

⚙️ Product Overview

Factory Evo fuel rails don’t provide convenient ports for aftermarket regulators or sensors. The GFB 5753 solves this by creating a dedicated threaded outlet, allowing:

• Cleaner fuel system plumbing
• Easier regulator installation
• Flexible mounting options

This makes it a must-have fitting for Evo fuel system upgrades.