B6 S4 Caliper Slide Pins

**fR3ZNO** · 02-16-2016 08:01 PM

Posting this here for those of you with rear B6/B7 S4 rear calipers...

Where can I find rear caliper slide pins? I've purchased slide pins from both RockAuto and through Amazon. Both sets were much bigger than the slide pins that came with the S4 calipers even though fitment was listed for B6/B7 S4.

Shown in the picture is a Raybestos P/N: H15244 next to the correct pin.

**fR3ZNO** · 02-17-2016 10:50 AM

seriously, no one?

**deyrag** · 02-17-2016 01:01 PM

I do not see a p/n for just the pin but here is a kit

https://www.ecstuning.com/Search/Sit...470A/ES450994/

**customa4** · 02-17-2016 01:06 PM

Maybe contact the dealer and see if they're sold separately? If they are hopefully the person on the phone would be so kind to give you a part number. If not just see how much they charge for them and see if it's worth paying for.

**fR3ZNO** · 02-17-2016 08:14 PM

I just contacted the dealer and they say that only the whole carrier is available.

**customa4** · 02-17-2016 08:20 PM

Damn that sucks. Gotta be some option out there for what you need.

**fR3ZNO** · 02-17-2016 08:57 PM

Originally Posted by customa4

Damn that sucks. Gotta be some option out there for what you need.

Exactly! I can't believe how difficult it is to find these damn things.

I posted this in the S4 section and that hasn't been much help.

**customa4** · 02-17-2016 10:26 PM

Are yours damaged? Why not reuse them?

**fR3ZNO** · 02-18-2016 05:42 AM

One of the slide pins was seized and as a result quite corroded. I cleaned it up with a die grinder and sanding wheel, so it's a little better now but the slider pin has quite a bit of slop in the carrier. The other three pins are perfectly fine and would reuse them.

**fR3ZNO** · 02-18-2016 01:26 PM

Frustrated. Contacted a few different dealers and they all told me slide pins are not available separately.
I even tried contacting Cardone, which rebuilds the calipers but the customer service rep said that they are not available and can not tell me where they get them.

I contacted a TRW location here in the US about slide pins, so we will see what they say.

**deyrag** · 02-18-2016 02:27 PM

What's wrong with the kit I posted a link to? It has the pins plus a couple rubber boots and bolts. According to the parts catalog that is the only way to get the pins (as part of that kit)

**diagnosticator** · 02-18-2016 02:32 PM

Originally Posted by deyrag

What's wrong with the kit I posted a link to? It has the pins plus a couple rubber boots and bolts. According to the parts catalog that is the only way to get the pins (as part of that kit)

The kit you linked to does not include guide pins, it provides only guide pin boots, mounting bolts and guide pin lube, no guide pins.

**fR3ZNO** · 02-18-2016 04:21 PM

Originally Posted by diagnosticator

The kit you linked to does not include guide pins, it provides only guide pin boots, mounting bolts and guide pin lube, no guide pins.

Yep. Exactly.

I posted this same question in the B6/B7 S4 section and someone linked me to the same kit.

**fR3ZNO** · 02-18-2016 04:35 PM

So I'm reaaaaaally digging deep here.

Amazon lists Wagner H4805 as fitting a B6 S4. Looked up that part on Google and it pulled up this CarID page.

Scrolling down to the full vehicle fitment list, a bunch of domestic cars/trucks like Dodge and Ford come up as well as a few Audi models like the C6 A6, D3 A8/S8 and B6/7 S4.

So I look up the D3 A8 and S8 on ECS, and they offer the same incorrect TRW kit for the rear, ST1160KT.

So now I do not really trust that fitment list.

I also looked up the 2005 F250 super duty since that apparently uses the same guide pin... check it out

Clicky Click

They look like the same shape, but I have a strong feeling that they will be the same size as the ones in my original post.

**deyrag** · 02-18-2016 08:26 PM

Originally Posted by fR3ZNO

Yep. Exactly.

I posted this same question in the B6/B7 S4 section and someone linked me to the same kit.

It says it includes the pins in the description

**fR3ZNO** · 02-18-2016 08:29 PM

Originally Posted by deyrag

It says it includes the pins in the description

I think that may be just a generic description. ECS is usually pretty good about showing everything in the pictures. Plus, the OEM part number on EKTA only shows bolts, boots and lube as well.

**Charles.waite** · 02-18-2016 10:18 PM

Why not look up the kit on the parts manufacturers website. The people who manufacture the parts wouldn't be wrong.

Centric makes a rebuild kit and they're an extremely trustworthy source:

It includes slider pins. All the rebuild kits should include pins.

**fR3ZNO** · 02-19-2016 08:04 AM

I actually purchased the repair kits the same time as the first set of slider pins from RockAuto. The centric kit is good, has all the seals you need (not just the piston seal and dust boot) but no slide pins.

I did look on TRW's website for brake parts, but only pads came up. No slide pins.

I emailed a TRW location here in the US, so we'll see what they say. It's weird that TRW provides slide pin kits for other calipers, like on the A4 and RS4 but not for the S4.

**fR3ZNO** · 02-19-2016 08:06 AM

**deyrag** · 02-19-2016 08:32 AM

Might be your best bet

http://www.ebay.com/itm/AUDI-S4-A4-B...NWp6nz&vxp=mtr

**Charles.waite** · 02-19-2016 12:08 PM

Originally Posted by fR3ZNO

Aww shoot, really? Damn, sorry about that. I'm trying to remember what brand slider pins I bought a few years back for my b7a4 rears. I want to say it was raybestos or something...

You absolutely CAN buy new sliders, I'm now really curious, haha. I've got some free time today so I'll do some sleuthing and post back when I find something.

**fR3ZNO** · 02-19-2016 12:42 PM

Originally Posted by Charles.waite

Aww shoot, really? Damn, sorry about that. I'm trying to remember what brand slider pins I bought a few years back for my b7a4 rears. I want to say it was raybestos or something...

You absolutely CAN buy new sliders, I'm now really curious, haha. I've got some free time today so I'll do some sleuthing and post back when I find something.

Did it happen to be the Raybestos P/N mentioned in the OP?

That is why I am looking so hard for these, it seems wasteful to buy a whole new carrier when I can just get the sliders. Someone definitely makes them, how else would companies be able to rebuild the carriers that come with the "loaded calipers"?

Are B7 A4 rears the same as B6/B7 S4 rears?

Originally Posted by deyrag

Might be your best bet

http://www.ebay.com/itm/AUDI-S4-A4-B...NWp6nz&vxp=mtr

I saw that when I was looking on eBay earlier. That would be the final option for me if it comes down to it.

**Charles.waite** · 02-19-2016 12:46 PM

Originally Posted by fR3ZNO

Did it happen to be the Raybestos P/N mentioned in the OP?

That is why I am looking so hard for these, it seems wasteful to buy a whole new carrier when I can just get the sliders. Someone definitely makes them, how else would companies be able to rebuild the carriers that come with the "loaded calipers"?

Are B7 A4 rears the same as B6/B7 S4 rears?

I saw that when I was looking on eBay earlier. That would be the final option for me if it comes down to it.

The calipers are wider to accommodated the much thicker vented rotor, but that doesn't necessarily mean the sliders are different. The Pistons are larger though so that's why the seal kits are different.

**fR3ZNO** · 02-19-2016 12:47 PM

Here's the other thread I posted in the S4 section

**fR3ZNO** · 02-19-2016 12:51 PM

Originally Posted by Charles.waite

The calipers are wider to accommodated the much thicker vented rotor, but that doesn't necessarily mean the sliders are different. The Pistons are larger though so that's why the seal kits are different.

Ah. I forgot the B7 A4 is solid rotor.

Depending on how much free time you have do you think you could pull a slide pin quick and take some measurements?

**Charles.waite** · 02-19-2016 12:59 PM

Hah, I definitely can't do that, its raining and cold here in Seattle. I only have b7 a4 rears on my current car though, since its a b7 a4. I sold the b6 last year and it also only had b7 a4 rears.

What about this kit?
http://www.dormanproducts.com/p-7235...olt&origin=YMM

**fR3ZNO** · 02-19-2016 01:02 PM

Originally Posted by Charles.waite

Hah, I definitely can't do that, its raining and cold here in Seattle. I only have b7 a4 rears on my current car though, since its a b7 a4. I sold the b6 last year and it also only had b7 a4 rears.

What about this kit?
http://www.dormanproducts.com/p-7235...olt&origin=YMM

No worries! haha.

That was the kit I bought from RockAuto! The slide pins were the same size as the ones shown in the OP. They're way too big.

I just can't believe that no one with a B6 S4 or A4 with S4 rears has replaced the slide pins by themselves...

**Charles.waite** · 02-19-2016 01:03 PM

Shit. You're absolutely sure you have s4 rears right, not a4 rears?

If I have a minute later today I can check my basement for my old b7 a4 slider pins. I probably tossed them though because one was bent from mishandling during shipping...

**fR3ZNO** · 02-19-2016 01:06 PM

Yep. The salvage place I bought them from assured me they were from a 2004 (B6) S4.

They definitely look like this too:

**Charles.waite** · 02-19-2016 01:12 PM

Can you measure the clearance in the carrier? It should be at least 22mm to clear the vented rotor.

Also not sure if this helps, but its the b7 a4 and b7 s4 guide pin specs:

Most of the specs aren't important, but the diameter specs could be helpful to compare tot he pins you have to see whats what.

**Charles.waite** · 02-19-2016 01:18 PM

Also, curiously, most companies don't list guide bolts for the B6 S4... Wagner seems to be the only one as you mentioned earlier. I'm not sure why that is as I was under the impression they didn't change the rear brakes (or the front brakes, really) on the S4 between the b6 and b7 generations... Could be they used a slightly different caliper that just happens to fit the same rotors?

**fR3ZNO** · 02-19-2016 01:18 PM

I'm not sure how the diameter of the slide pin can be 2.95" and 1.18".

**Charles.waite** · 02-19-2016 01:26 PM

Originally Posted by fR3ZNO

I'm not sure how the diameter of the slide pin can be 2.95" and 1.18".

Maybe at different points? Yea I've got no clue but I figure one of those values would actually be relevant. Likely the smaller one.

**fR3ZNO** · 02-19-2016 01:27 PM

But still, an inch is way off.

**old guy** · 02-19-2016 01:29 PM

Originally Posted by fR3ZNO

I'm not sure how the diameter of the slide pin can be 2.95" and 1.18".

The information for the bolt lengths and bolt diameters got reversed.

**fR3ZNO** · 02-19-2016 01:34 PM

Originally Posted by Charles.waite

Also, curiously, most companies don't list guide bolts for the B6 S4... Wagner seems to be the only one as you mentioned earlier. I'm not sure why that is as I was under the impression they didn't change the rear brakes (or the front brakes, really) on the S4 between the b6 and b7 generations... Could be they used a slightly different caliper that just happens to fit the same rotors?

I was curious about that as well, but the caliper and carrier part numbers for B6 and B7 are the same per ECS.

**deyrag** · 02-19-2016 02:03 PM

For a 2005 (latest year i have info for)

S4 (300 x 22 rotor) carrier p/n = 8E0615425B

A4 (255 x 12 rotor) carrier p/n = 8E0615425A

A4 (245 x 12 rotor) carrier p/n = 8E0615425

None of them list guide pins as a separate p/n

**fR3ZNO** · 02-19-2016 02:05 PM

Some of those Raybestos dimensions make no sense. Packaged weight is 0.31"? lolwut.

I have the B7 S4 Raybestos slide pins here. I got them off Amazon. Listed as fitting a B7 S4 and I assumed that since B6 and B7 brakes are the same, they'd fit.

So the 2.95" is the bolt length. But 1.18" is definitely not the diameter. Not sure what feature that dimension referred to.

Just for reference, the slide pins from my B6 S4 carrier have an overall length of 2.612", a bolt head of 0.594", and pin diameter of 0.330"