Hard Lines

Hard Lines & Pre-Bent Fluid Lines

Hard lines are rigid metal tubing used for brake lines, fuel lines, and transmission cooler lines where a permanent, vibration-resistant connection is needed. Pre-bent hard lines are formed to match factory routing for a direct-fit replacement, while straight tubing and fittings allow custom fabrication for modified and race vehicles.

OneFastShop carries hard lines including pre-bent brake lines, stainless steel and nickel-copper brake tubing, pre-bent fuel lines, hard line fittings, flaring tools, and direct-fit and universal hard line kits for brake, fuel, and transmission cooler plumbing.

Every hard line at OneFastShop ships brand-new with manufacturer backing. Whether you're replacing rusted factory brake lines, running new fuel hard lines, or fabricating custom fluid routing, OneFastShop has the tubing. Shop the full hard lines collection today.