Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.


brake hose life?

brake hose life?

What life expectancy is engineered into brake hoses in general? I am a materials engineer myself but cannot even guess when to replace brake hoses. I suppose there is a huge factor of safety. Thank you.

RE: brake hose life?

SAE J 1401

This SAE Standard specifies the performance tests and requirements for hydraulic brake hose assemblies used in the hydraulic braking system of a road vehicle.


The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.

RE: brake hose life?

Thank you. I will read up the spec.

RE: brake hose life?

There are fairly modern tales of 10 year shelf life, and somewhat shorter service life.

A thorough visual inspection might reveal a problem long before the alarm clock goes off.

I start to get nervous when bending the "rubber" outer cover reveals cracks, or there are bulges or soft spots or any external damage.
A white-knuckled 2 footed application of the brakes is probably a 2 or 3X working load test, which everything should pass just fine. But surface damage could still trigger rejection.

RE: brake hose life?

In 55 years of driving, I've never had a brake hose fail.
I _have_ had several instances of steel brake tubing failure, from rust, in states where winter brings out the salt spreaders.
With single-circuit brakes, the pedal goes to the floor, like stepping on a plum as the song goes, and you get to check the condition of your parking brakes.

Mike Halloran
Pembroke Pines, FL, USA

RE: brake hose life?

"In 55 years of driving, I've never had a brake hose fail."

I recall just one, on a well worn 1975 Volvo 245. Back then Volvos had a complicated split dual brake system with 2 hoses to each front caliper, in place of the nearly univesal front/rear split. I knew the hoses had deep cracks, completely thru the rubber casing, exposing the tender white inner liner.
A situation arose in city traffic requiring a heavy brake application. I popped one hose in each circuit, resulting in zero brakes.

I have looked at cracked brake hoses differently ever since.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close