Most brake line trouble starts at the fitting. Or the crimp behind it, the one that was never going to hold. That’s the part people get wrong when they order custom brake lines off a web form and just hope the ends seal. We’ve built hose assemblies across the counter at Greenshields Industrial Supply since 1953, and brake work follows the same rule as everything else we crimp. Length, fittings, crimp. Get those three right, and the line outlives the machine.
Custom means built to your length, with the fittings your vehicle or equipment actually uses, in the right material for the job. That’s the whole spec.
People come in for two kinds of custom brake lines. Braided flexible hose, the kind that moves with the suspension and steering. And hard line, the bent steel or copper-nickel tube that runs along the frame. This page leans on the braided side, because that’s where a hydraulic shop earns its keep. We bend and flare hard line too, so bring that in as well. A custom brake line is straightforward. We build it for your machine instead of pulling a length off a shelf and hoping everything checks out.
Custom braided brake lines are simpler than they look. Inside sits a PTFE (Teflon) liner that carries the fluid. Around it is a tight 304 or 316 stainless steel braid, usually with a PVC or nylon jacket over the top.
The braid does one main job. It stops the line from ballooning under pressure the way tired rubber does. Less swell means more of your foot reaches the calipers, so the pedal feels firmer on a hard, repeated stop. Honestly, the gain is mostly pedal feel. Custom braided brake lines won’t shorten your stopping distance much on their own, and anyone who promises that is selling you something.
Here’s what most people miss. The braid hides the liner. You can’t watch a braided line crack and weep the way you can a rubber hose, so a bad one can catch you off guard. Uncoated braided stainless brake lines bring a second problem. Grit works into the weave and saws at the Teflon from the outside. A clear coat seals the weave and stops it, which is why plenty of guys order custom steel braided brake lines with the coating already on. So when do you actually need to step up? Performance driving, heat soak, off-road abrasion, or old rubber gone soft and swollen. Those are the jobs where a stainless braided brake hose earns its money.
When is plain rubber fine? More often than people admit. A healthy daily driver on good factory lines may not feel enough difference to justify the swap. We’ll say that straight rather than push you into custom brake hoses you don’t need. One custom brake hose built to your exact length still beats a near-enough kit on anything that sees rocks, mud, or a hot track.
This is the part nobody checks until it bites them. Anything you drive on the road should meet the federal brake hose standard, FMVSS No. 106, and carry the markings to prove it.
That standard isn’t soft. A hydraulic brake hose assembly has to hold 4,000 psi for two minutes without rupturing, and it leans on SAE practices like J1401 for how the assembly gets built and labeled. Road use means compliant and marked. Race-only cars and off-road equipment fall outside those motor-vehicle rules, which is why so many braided lines get sold “non-DOT.” None of that is legal advice, just what we’ve seen sort guys out at the counter.
Compliance comes down to the marking stamped on the line, the proof it meets the standard. Bright braid and chrome fittings don’t guarantee it. We supply custom brake lines that carry the marking, and we’ll tell you straight when your build doesn’t need one.
The process is plain. Bring us the old line, or the measurements off the machine, and we match it. We pick the fittings (banjo, AN, inverted flare, whatever the job calls for), cut to length, and crimp the ends on the same gear we run in the hydraulic hose shop every day.
A custom brake line is only as strong as the crimp behind the fitting. That’s the whole game. We crimp every custom brake hose on our own dies, right here at the counter. Torque the banjo bolts to spec on install, and grab the right wrench if you don’t have one. We build custom made brake lines for cars, bikes, off-road rigs, and fleet equipment, across the whole range of work that rolls through the shop.
Bring us the blown line, or the numbers off the truck. We’ll build custom brake lines that match, crimp them to hold, and get you back on the job. Stop in or call the counter.
Greenshields Industrial Supply & Hydraulic Shop provides hydraulic hose repair, rigging solutions and fluid power components for contractors throughout Everett, Snohomish County and King County.
710 North Broadway Everett, WA 98201
Business Hours: Monday – Friday | 7:00 AM – 5:00 PM
© Greenshields Industrial – 2026. All Rights Reserved.
