Product Description
Build a clean, leak-free high-pressure fuel system with the FLEECE FPE-34200-18 18 INCH HIGH PRESSURE FUEL LINE. This universal 18" hard line uses precise 8mm x 3.5mm tubing and M14 x 1.5 nuts, giving fabricators and engine builders OEM-quality construction for custom common-rail and high-pressure fuel projects. Stop fighting old factory lines and start routing your fuel system exactly the way you want it.
Features & Benefits
- 18" high-pressure hard line for custom fuel system layouts
- 8mm x 3.5mm tube for strong, consistent fuel delivery
- M14 x 1.5 nuts on each end for a tight, repeatable seal
- OEM-quality construction designed for high-pressure diesel use
- Perfect for fabricators, race shops, and serious DIY engine builders
Fitment / Usage
Type: Universal high-pressure fuel line (not application-specific)
Typical use cases: Custom CP3 / injection pump feeds, rail-to-injector lines, compound fuel system plumbing, and other high-pressure diesel or gasoline fuel projects where 8mm x 3.5mm, M14 x 1.5 hardware is appropriate.
Vehicle / engine compatibility: Universal – verify length, diameter, and fitting specification for your specific engine (Cummins, Duramax, Power Stroke, or other high-pressure platforms).
Cross-Reference / Related Fleece Products (CPP Diesel)
Need a different length? Match this 18" line with other Fleece universal high-pressure fuel lines to dial in your routing:
- FLEECE FPE-34200-16 – 16 INCH HIGH PRESSURE FUEL LINE 8MM X 3.5MM LINE M14 X 1.5 NUTS
- FLEECE FPE-34200-17 – 17 INCH HIGH PRESSURE FUEL LINE 8MM X 3.5MM LINE M14 X 1.5 NUTS
- FLEECE FPE-34200-19 – 19 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
No. This is a universal high-pressure fuel line. It is designed for custom systems where you match the 18" length, 8mm x 3.5mm tube size, and M14 x 1.5 nuts to your particular fuel rail, pump, or injector configuration.
Can I bend this line to fit my custom routing?
Yes. The line is intended to be bent by fabricators and engine builders for precise routing. For professional results, use a quality hand tubing bender designed for 8mm line and always support the tube to avoid kinking.
What pressure can this fuel line handle?
The FPE-34200-18 is built for modern high-pressure fuel systems (such as common-rail diesel). Always ensure that your system operating pressure and installation practices meet or exceed OEM standards and follow safe fabrication guidelines.
Do the M14 x 1.5 nuts fit OEM components?
The M14 x 1.5 nuts are a common high-pressure fuel fitting size, but you should confirm the thread size and seat style of your pump, rail, and injector fittings before installation. Adaptors may be required in some custom setups.
Is there a Proposition 65 warning for this product?
Yes. This product carries a California Proposition 65 warning for Cancer and Reproductive Harm. See the Specifications table below for the official notice and link.
Specifications for FLEECE FPE-34200-18
| Attribute | Value |
|---|---|
| Brand | Fleece Performance Engineering |
| Part Number | FPE-34200-18 |
| UPC | 635909313267 |
| GTIN | 00635909313267 |
| Line Length | 18 inches |
| Line Size | 8mm x 3.5mm |
| Fitting Size | M14 x 1.5 nuts (each end) |
| Material | Steel, high-pressure rated |
| Construction | Universal straight hard line for custom bending |
| Cross Reference | FPE-34200-16; FPE-34200-17; FPE-34200-19; FPE-34200-20 |
| E-codes | Not applicable |
| Shipping Dimensions (W x H x L) | 1.50 in x 2.00 in x 18.00 in (approx., from CPP listing) |
| Shipping Method | Standard ground (small parcel), calculated at checkout |
| Country of Origin | USA (as commonly listed by resellers) |
| Prop 65 | Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
