FLEECE FPE-34200-19 19 INCH HIGH PRESSURE FUEL LINE 8MM X 3.5MM LINE M14 X 1.5 NUTS

Build a cleaner, more reliable high-pressure fuel system with the FLEECE FPE-34200-19 19 INCH HIGH PRESSURE FUEL LINE (8MM X 3.5MM, M14 X 1.5 NUTS). This straight 19" stick of OEM-quality steel tubing is designed for custom bending, so you can route your common-rail or high-pressure fuel plumbing exactly where you want it while maintaining leak-free performance under extreme pressure and temperature. Fleece FPE-34200-19 high pressure fuel line, 19 inch 8mm x 3.5mm diesel injection line, M14 x 1.5 nuts fuel line, universal common rail fuel line, Fleece Performance fuel line CPP Diesel, custom CP3 fuel line, Cummins high pressure line, fabrication fuel line stick

Key Features

• 19 inch high-pressure fuel line for flexible, custom routing
• 8mm x 3.5mm tubing wall profile for robust pressure capability
• M14 x 1.5 nuts on both ends for secure, repeatable sealing
• Ships straight so you can bend it precisely for your application
• OEM-style construction from Fleece Performance Engineering

Fitment / Typical Use

Type: Universal high-pressure fuel line stick for diesel and gasoline high-pressure fuel systems
Line Size: 8mm x 3.5mm high-pressure tubing
Ends: M14 x 1.5 metric flare nuts, both ends
Typical Applications: Custom common-rail Cummins setups, CP3/CP4 plumbing, compound turbo builds, injector line repairs, and fabricated fuel systems where a straight, bend-to-fit high-pressure line is needed. 

Because this is a universal straight line, you can tailor it to a variety of layouts and mounting positions. A quality tubing bender is recommended for clean, professional bends and to avoid kinking the line. 

Cross-Reference / Related Fleece Fuel Lines & Components (CPP Diesel)

• FLEECE FPE-34200-7 7 INCH HIGH PRESSURE FUEL LINE 8MM X 3.5MM LINE M14 X 1.5 NUTS
• FLEECE FPE-34200-10 10 INCH HIGH PRESSURE FUEL LINE 8MM X 3.5MM LINE M14 X 1.5 NUTS
• FLEECE FPE-34200-18 18 INCH HIGH PRESSURE FUEL LINE 8MM X 3.5MM LINE M14 X 1.5 NUTS
• FLEECE FPE-34200-20 20 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-CUMM-SSFTN STAINLESS STEEL FUEL SUPPLY TUBE NUTS FOR 5.9/6.7L CUMMINS

The FPE-34200-19 ships as a straight 19 inch stick so you can custom bend it to match your exact routing. This makes it ideal for custom turbo, pump, or rail layouts where pre-bent OE lines won’t fit. 

Both ends use M14 x 1.5 metric nuts on 8mm x 3.5mm high-pressure tubing, which matches many common-rail and high-pressure diesel fuel system components. Confirm your component thread size before ordering. 

The line is sold as a universal high-pressure fuel line. It’s commonly used in Cummins and other diesel applications, but final compatibility depends on length, routing, and end connections in your specific system.

For the best results, Fleece and most installers recommend using a quality tubing bender and line clamps or brackets to avoid kinks and vibration-related fatigue. Basic hand tools are needed to tighten the M14 x 1.5 nuts. 

No. This part number is for the 19 inch high-pressure fuel line stick with M14 x 1.5 nuts only. Any additional fittings, clamps, brackets, or adapters must be purchased separately.

Yes. As with many automotive components, this product carries a California Proposition 65 warning for Cancer and Reproductive Harm. See the Specifications table below for the official notice. 

Specifications for FLEECE FPE-34200-19