FLEECE FPE-34200-17 17 INCH HIGH PRESSURE FUEL LINE 8MM X 3.5MM LINE M14 X 1.5 NUTS

Build a clean, professional high-pressure fuel system with the FLEECE FPE-34200-17 17 INCH HIGH PRESSURE FUEL LINE (8MM X 3.5MM, M14 X 1.5 NUTS). This straight 17" OEM-quality line is perfect for fabricators and engine builders who want precise routing, leak-free performance, and a tidy engine bay instead of fighting bent or hacked factory lines. Fleece FPE-34200-17 17 inch high pressure fuel line, 8mm x 3.5mm diesel fuel line, M14 x 1.5 common rail line, universal high pressure fuel stick, Cummins common rail custom fuel line, Fleece Performance fuel system parts, CPP Diesel

Manufactured from durable steel tubing and finished to OEM standards, this Fleece fuel line is designed to handle the extreme pressures found in modern common rail diesel systems while maintaining consistent fuel delivery. Use it as a blank slate for your custom single-turbo, compound, or race fuel system layout.

Fitment / Typical Use

Fitment type: Universal high-pressure fuel line stick
Length: 17 inch straight line (approx.)
Tubing size: 8mm x 3.5mm high pressure steel line
End nuts: M14 x 1.5 nuts on both ends
Applications: Custom high-pressure diesel fuel systems, commonly used in Cummins 5.9L and 6.7L common rail and other engines that utilize 8mm x 3.5mm, M14 x 1.5 style lines where length and routing are being custom-fabricated. 

This line is intended for builders who are bending and routing their own lines. Always verify thread, seat style, and length for your specific injector, rail, or pump configuration before final installation.

Cross-Reference / Related Fleece Products (CPP Diesel)

• FLEECE FPE-34200-10 – 10" High Pressure Fuel Line (8mm x 3.5mm, M14 x 1.5)
• FLEECE FPE-34200-12 – 12" High Pressure Fuel Line (8mm x 3.5mm, M14 x 1.5)
• FLEECE FPE-34200-16 – 16" High Pressure Fuel Line (8mm x 3.5mm, M14 x 1.5)
• FLEECE FPE-34200-18 – 18" High Pressure Fuel Line (8mm x 3.5mm, M14 x 1.5)

Why Fabricators Choose FPE-34200-17

• Straight 17" stick makes custom bending and routing simple
• 8mm x 3.5mm tubing with M14 x 1.5 nuts matches common rail diesel hardware
• OEM-quality line for high-pressure common rail systems
• Ideal for custom turbo setups, engine swaps, and race builds
• Backed by Fleece Performance Engineering and available from CPP Diesel

No. The FPE-34200-17 is supplied as a straight 17" high-pressure line so you can bend and route it exactly how your custom setup requires.

This is a universal high-pressure line intended for custom work. It is commonly used on diesel applications such as Cummins common rail where 8mm x 3.5mm tubing and M14 x 1.5 nuts are standard, but you must verify thread and seat compatibility for your exact injectors, rail, and pump.

Any modification should only be performed by qualified professionals with the proper tooling for high-pressure common rail lines. Incorrect cutting or flaring can result in leaks or fuel system damage.

Yes. Use a high-quality tubing bender designed for small-diameter steel fuel lines to avoid kinks, flat spots, or cracks. Always inspect bends carefully before pressure-testing.

No. This part is the bare high-pressure line with M14 x 1.5 nuts on each end. Mounting hardware, clamps, and brackets should be sourced or fabricated to suit your custom routing.

Yes. As with many metal automotive components, this product carries a California Proposition 65 warning for cancer and reproductive harm. See the Specifications table for details.

Specifications for FLEECE FPE-34200-17