Collection: Hose & Hose Ends

PTFE hose ends use a socket nut and olive insert to mechanically grip a PTFE-lined braided hose - the liner is chemically inert, making PTFE the right choice for brake fluid, methanol, E85, and any fluid that degrades rubber over time. Push lock hose ends use a barbed insert and hose clamp to grip the inner bore of a rubber hose which is faster to assemble and more flexible to route, but suited to fuel, oil, and coolant rather than brake fluid. If you're unsure, PTFE is the safer and more versatile choice for motorsport applications.

AN8 (13mm ID) is the standard choice for a main fuel feed line on most performance and modified street cars. AN6 (9.5mm ID) suits lower-power builds or fuel return lines. AN10 (16mm ID) is typically used on high-horsepower forced induction builds running large injectors or external fuel pumps. If you're unsure, AN8 is the safe starting point for the majority of builds.

Yes. All FLUX PTFE hose, both the 250 Series black braided and 200 Series stainless braided are fully compatible with E85, methanol, and other ethanol-blended fuels. The PTFE liner is chemically inert and does not degrade or swell with ethanol content. FLUX push lock rubber hose is also E85 compatible. If you are running E85, PTFE hose is strongly recommended for long-term reliability.

Choose the angle that allows the hose to exit the fitting and run in its intended direction without bending immediately after the fitting. Straight hose ends suit ports that face directly along the hose run. 45° and 60° ends suit gentle directional changes. 90° is the most common choice for tight engine bay routing. 120°, 150°, and 180° suit specific routing challenges such as oil cooler connections, lines that must reverse direction, and ports facing away from the hose run. When in doubt, a 90° is the most versatile single angle to have on hand.

Full flow hose ends have a larger internal bore than standard hose ends of the same AN size, reducing restriction at the fitting itself. This matters most in high-demand circuits - oil coolers, power steering, turbocharger oil returns, and large-volume fuel systems where maximum flow rate is important. For fuel lines, brake lines, and most standard applications, standard hose ends are sufficient. Full flow fittings are available in the Full Flow Fittings & Adapters collection.

FLUX PTFE hose ends are designed for use with FLUX PTFE hose and are sized to the AN standard, they will physically fit any AN-spec PTFE hose from other manufacturers, but FLUX cannot guarantee the quality of the seal with third-party hose. For guaranteed performance, use FLUX hose ends with FLUX hose. The same applies to push lock hose ends and push lock hose.

Cut the PTFE hose cleanly and squarely using a sharp cutting disc or dedicated hose cutting tool, a ragged cut will compromise the seal. Insert the olive insert into the hose end, place it against the cut end of the hose, then thread the socket nut over the hose and onto the hose end body. Tighten the socket nut firmly by hand, then use an AN spanner to snug it. Do not overtighten. No sealant or tape is required. FLUX double-head AN spanners are available in the accessories range.

All FLUX hose, PTFE and rubber braided, is sold per metre so you can order exactly the length your build requires without paying for unused hose. Simply enter the quantity equal to the number of metres you need at checkout.