FLEECE FPE-34200-10 10 INCH HIGH PRESSURE FUEL LINE 8MM X 3.5MM LINE M14 X 1.5 NUTS

Fabricators and engine builders: stop fighting crusty, pre-bent factory lines. The FLEECE FPE-34200-10 10 INCH HIGH PRESSURE FUEL LINE 8MM X 3.5MM LINE M14 X 1.5 NUTS gives you a straight 10" section of OEM-quality 8mm x 3.5mm tubing with M14 x 1.5 nuts on each end, ready to bend exactly how your high-pressure diesel or gasoline setup demands. This is the clean, professional solution for custom common-rail, CP3, and high-pressure fuel system layouts. Fleece FPE-34200-10 high pressure fuel line, 10 inch 8mm x 3.5mm line, M14x1.5 nuts, universal diesel fuel line, common rail plumbing, CP3 injection pump line, CPP Diesel Fleece Performance

Key Features

• Straight 10" high-pressure line for custom routing and clean layouts
• 8mm x 3.5mm tube with M14 x 1.5 nuts on both ends
• OEM-style construction for durability and leak-free performance
• Perfect for CP3, rail, and injector hard-line projects
• Universal use wherever an 8mm high-pressure line with M14 seats is required

Fitment / Typical Use

Type: Universal high-pressure fuel line
Length: 10 inches (straight section)
Line size: 8mm x 3.5mm tube
End fittings: M14 x 1.5 nuts (both ends)
Applications: Custom high-pressure fuel plumbing on common-rail diesels, CP3/CP4 conversion projects, rail and injector hard-line routes, and other performance or race builds where an 8mm, M14 x 1.5 high-pressure line is needed.

Cross-Reference / Related Fleece Products on CPP Diesel

• FLEECE FPE-34200-7 7 INCH HIGH PRESSURE FUEL LINE 8MM X 3.5MM LINE M14 X 1.5 NUTS
• FLEECE FPE-34200-8 8 INCH HIGH PRESSURE FUEL LINE 8MM X 3.5MM LINE M14 X 1.5 NUTS
• FLEECE FPE-34200-11 11 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-34200-14 14 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 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-34200-10 is a universal high-pressure fuel line. As long as you’re using 8mm tubing with M14 x 1.5 seats, you can integrate it into custom CP3, rail, or injector plumbing on many platforms.

Yes. These lines are designed to be bent by the installer. For clean, repeatable bends, we recommend using a quality hand tube bender sized for 8mm steel tubing.

It is built to meet or exceed typical common-rail diesel pressures when installed correctly with proper fittings. Always follow OEM-level safety practices when working with high-pressure fuel systems.

No. This part is the bare 10" line with M14 x 1.5 nuts. Adapters, brackets, or additional hardware should be sourced separately based on your specific layout.

Yes. As with many metal automotive components, this product includes a California Proposition 65 warning. See the Specifications table below for details.

Specifications for FLEECE FPE-34200-10