FLEECE FPE-34200-14 14 INCH HIGH PRESSURE FUEL LINE 8MM X 3.5MM LINE M14 X 1.5 NUTS

The FLEECE FPE-34200-14 14 INCH HIGH PRESSURE FUEL LINE 8MM X 3.5MM LINE M14 X 1.5 NUTS is built for fabricators and engine builders who want clean, professional high-pressure fuel plumbing without hacking up factory lines. This universal 14" line uses an 8mm x 3.5mm tube with M14 x 1.5 nuts, giving you an OEM-quality solution for custom CP3, rail, and injector layouts. Fleece FPE-34200-14 high pressure fuel line, 14 inch universal common rail line, 8mm x 3.5mm diesel fuel line, M14x1.5 CP3 injector line, Fleece fuel system fabrication parts, CPP Diesel Fleece Performance Engineering

Key Features

• 14" high pressure fuel line for custom layouts and repairs
• 8mm x 3.5mm line with M14 x 1.5 nuts for common high-pressure applications
• OEM-quality tubing for reliable sealing and long life
• Perfect for CP3 conversions, dual-fuel setups, and custom common-rail routing
• Universal design lets you bend to your exact routing with a proper tubing bender

Fitment / Use Case

This part is a universal high pressure fuel line intended for custom and fabricated fuel system builds, including:

• Custom CP3 and common-rail fuel system layouts
• Race and performance diesel builds where factory line shapes do not fit
• Engine swaps and conversions needing M14 x 1.5 injector or pump connections
• Repair or replacement of damaged hard lines when a universal option is preferred

Note: Always verify thread, seat style, and clearance on your specific application. A quality hand tubing bender is recommended for precise, kink-free bends.

Cross-Reference / Related Fleece Products on CPP Diesel

• FLEECE FPE-34200-10 10 INCH HIGH PRESSURE FUEL LINE 8MM X 3.5MM LINE M14 X 1.5 NUTS
• FLEECE FPE-34200-12 12 INCH HIGH PRESSURE FUEL LINE 8MM X 3.5MM LINE M14 X 1.5 NUTS
• FLEECE FPE-FL-CUMM-6.7-SET 07.5-18 6.7L RAM 2500/3500 CUMMINS FUEL INJECTION LINE SET
• FLEECE FPE-HFFL-1018 2010-2018 CUMMINS 0.5 INCH HIGH FLOW FEED LINE KIT (OEM FILTER TO CP3)

The FPE-34200-14 is a universal high pressure fuel line. It is not pre-bent for one specific engine; instead, it gives you a straight 14" section with M14 x 1.5 nuts you can bend to fit your custom layout.

Use a quality hand tubing bender designed for 8mm (or 5/16") hard line. This helps prevent kinks and flat spots and keeps the line looking professional under the hood.

As long as your system uses compatible 8mm hard line and M14 x 1.5 fittings, this line can be used in CP3 and common-rail applications. Always verify thread, seat, and clearance on your particular engine before final installation.

Yes, many builders use these Fleece lines alongside OEM pieces to complete a custom layout. Just be sure all connection points are the correct thread and seat type, and that there is no interference or rub points.

Yes. Like many automotive components, it carries a California Proposition 65 warning for Cancer and Reproductive Harm. See the Specifications table below for details.

Specifications for FLEECE FPE-34200-14