Brake Lines
Pre-Cut Brake Lines
Rust-proof lines that bend by hand and outlast the vehicle.
Skip the measuring and flaring -- pre-cut brake lines arrive cut to common lengths with the flares and tube nuts already formed, so you can install a fresh line in minutes. It's the fastest fix when you need to replace a single rusted line and get back on the road.
Choose with confidence
Which brake line material is right for you?
Every 4LifetimeLines material is built to last — the difference comes down to corrosion resistance, how easily it bends by hand, and price.
Complete the job — you'll also want
When pre-cut makes sense
Pre-cut lines are ideal for straightforward, single-line repairs where a standard length reaches from port to port. Choose your length, bend to route, and connect. For full-vehicle jobs or custom routing, a coil or complete kit gives you more flexibility.
Get the right fit
Match the tube size and flare/thread to your vehicle's ports -- most use 3/16". Add the correct fittings if you're adapting sizes, and see what size brake line you need. Browse all brake lines.