Front hard brake line into caliper leaking - please help!

smerhej

New member
Hey all,

So I was changing my pads and replacing some studs on the front passenger side, and after bolting the caliper back on, the hard brake line going from the caliper to the bracket started leaking.

I've heard from a lot of other T4R Canadians that these OEM S-shaped lines are either not being made any more or take weeks to get which is frankly not-desirable.

The part stores sell these:
H. Paulin CN351 Copper Nickel Brake Line, Standard, 51 x 3/16-in — Partsource

Is this the right kind of line? I know 3/16 is correct (and there's various sizes for sale) but it doesn't list the fitting (just that it's Japanese). I was planning on picking up a line bender and a couple 12" just in case.

Anything else I'd need just in case? Thanks in advance :frusty:
 
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I'm confused. A hard line can not come from the caliper. The wheels move so a hose is needed/used. The hose begins at the bracket you describe...

?
 
Brake lines

Hello, the brake lines are still available. I did not have any luck finding them on a parts diagram but a quick call to Conicelli Toyota and I had them in five days. I don't know about shipping to you but it might be worth a call.
 
I was doing my last brake job and flustered a bad front hard line. Was late on a Saturday and I was able to get a temporary generic straight line from Oreillys, I just bent to fit. Be aware, both sides are different, one side is beveled, the other is straight. I was able to get the OEM lines from a dealer with next day delivery when they opened that Monday.
 
The caliper small hardline is 3/16 with Japanese ends. I was in the same boat when my caliper piston pushed out too far and I had to replace the front calipers on my Tetanus 1 [1998 4 runner] so I bought remfg from napa and put the shortest ni cu line napa had 6 or 8 inch I believe.

Like other posters suggested the OEM brake lines are still available for purchase and that is what I would have normally used.


If you pull the clip that holds the rubber line union to its bracket you can use the rubber line as it flexes some so you dont damage the mini metal line while changing pads or rotors.

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Thanks for the help everyone - I'll try the dealer then the part store for the Japanese line like suggested.
 
You can go to NAPA, Advance etc and get the replacement line. You must bend it but its not really a big deal to do. The price is WAY cheaper than a Toyota dealer price. I just did mine a few months ago and its super easy. good luck
 
You can go to NAPA, Advance etc and get the replacement line. You must bend it but its not really a big deal to do. The price is WAY cheaper than a Toyota dealer price. I just did mine a few months ago and its super easy. good luck

When you got the replacement is it just the pre-flared/fitted Japanese line?
 
All you need is an 8" piece of brake line from any parts store that is 3/16"X 10mm-1.0 inverted flare. It's just a 3/16" brake line with metric thread AKA Japanese style brake line. Euro would be 10mm-1.0 bubble flare, SAE is 3/8-24 inverted flare.
 
All you need is an 8" piece of brake line from any parts store that is 3/16"X 10mm-1.0 inverted flare. It's just a 3/16" brake line with metric thread AKA Japanese style brake line. Euro would be 10mm-1.0 bubble flare, SAE is 3/8-24 inverted flare.
Yup that is exactly what I purchased. I didn't have the length written in my notes but it's the 3×16 10mm -1.0 inverted flare. As mainerunner explained. :]

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FYI: They're quite affordable from the dealer. I just ordered the equivalent lines for my 2000 Tundra and they were $6.58 each... pre-bent perfect fit.

Toyota calls them Front Brake Tubes. Given the interchangable parts between the Tundra and 4Runner, it wouldn't surprise me a bit if they were the same part number.

Edit: If you're going to roll your own, it's not a bad idea to have a tubing bender. It's not absolutely necessary, but but for $10, you'll get better bends, and you won't have to worry about kinks. Plus, you'll have a new tool!

I have one similar to this one from Harbor Freight and it works well:
image_18464.jpg
 
Last edited:
For my 2000 SR5 4WD I just got new hard lines.

I got the ones from the caliper to the flex hose and the ones directly after the flex hose for both sides.

Part numbers are:
47314-35330 Tube Front Brake No.4
47316-35250 Tube Front Brake No.6
47315-35320 Tube Front Brake No.5
47313-3D050 Tube Front Brake No.3

They were the correct parts I was looking for. However, I dont remember which ones were the lines going to the caliper. 6.56$ each.
 
Thanks for this!

All you need is an 8" piece of brake line from any parts store that is 3/16"X 10mm-1.0 inverted flare. It's just a 3/16" brake line with metric thread AKA Japanese style brake line. Euro would be 10mm-1.0 bubble flare, SAE is 3/8-24 inverted flare.

My front brake line broke off at the caliper 180 mi from home. The old lady is parked home safe now. Probably time to do all a retrofit of a lot of the brake lines!

Any more recs out there? I've got a 2" lift. If anyone has part numbers for the bracket attaching the brake line to the knuckle I wouldn't mind that either.

315mi and counting... counting slowly. She's taken some serious $$ and work to keep on the road lately.
 

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