Confused about front rotor size 350mm or 360mm or 390mm
 

Hello, I have a base cayenne 2011 with black caliper and I will soon do a complete brake job. On dealer website parts or third party online check fit, the front rotor 350mm fit, also the 360mm is ok and even the 390mm fit ? I'm confused... Anyone have experience with this and I want to know if there is a difference in caliper size (black, silver and red) and what is the biggest rotor and pads combination I can fit without replacing my base black front caliper. Thanks

The biggest caliper/rotor combination will be limited by the space inside your wheels. Any brake specialist should be able to tell you the right size based on the wheel size on your car. There MIGHT be other clearance issues around suspension components and a system designed for your year/model Cayenne. Someone with access to a shop manual could likely tell you what size rotor is stock if you provide your wheel size (and indicate if it still has original Porsche wheels). But even with that info, it may still require talking to a specialist company that makes kits to update existing Cayenne brakes.

Why do you feel like you need to install larger brakes? Even the base Cayenne has pretty darn effective brakes for street driving and a base Cayenne isn't exactly what you expect for a track car (nor is ANY Cayenne for that matter).

There can also be different brakes included with some option packages especially if the package included different size wheels. And there are different brakes for base, S, turbo (GTS may share Turbo brakes) and you may be able to upgrade to a larger brake/caliper while staying with brakes designed for Cayennes -- but again, the clearance inside the wheel determines the size of the brakes you can install--along with clearance issues around suspension components.

Depending on the year (15+?), the GTS does indeed share the same 390mm rotor and red calipers as the Turbo. The 390 setup will not fit smaller than 19" rims (definitely not 18s).

So, first question is what size rims are on there now? If they're 18's then you're not upgrading calipers without also changing the tires & rims.

As to the 350 vs 360 sizes, I don't know. You're not talking a huge difference, less than a quarter-inch on the radius, which isn't going to translate into much on the braking surface. Still, I'd wonder which is the correct option 350 or 360?

To speak directly to a desire to replace like with like, you've got 350mm rotors. Most of the aftermarket sites don't properly list the Cayenne brakes. Pelican has a great selection.. https://www.pelicanparts.com/catalog..._pg2.htm#item7

I'd like to resurrect this thread. How to tell if my Base 2014 Cayenne has 350 or 360 mm front rotors?

Base cayenne 2011-2014 has 350mm front rotors, Porsche upgraded the base model to 360mm for 2015+ model years.

Then why would every single site that sells brakes, list both 350 and 360 for 2014? What do they not know that you do?)))

360s are for GTS and maybe the S. 390 for Turbo and Turbo S.

390 added to GTS for 2016 and up.

I remembered reading article saying that Porsche upgraded the brakes on 2015+ base model and cayenne diesel to the 360mm found on S models. You don't have to take my word for it though, it's easy enough to call your local dealer, give them the vin, and have them give you the exact part number.

And where do 370mm/14.5" rotors come from??

I had my wheel off on the '14 and measured my rotor and it was 370! That makes no sense at all....

I pulled an order for my aftermarket brake pads, I did not bother about rotor size at that time, but order says pads were for 350 mm rotors and they fit with few mm 'less' than rotor diameter kinda...
So maybe pads should have been ordered for 360 mm or that is the way they fit.

As to the dealer, they are not that shrewd anymore, I bet they will look on the screen that shows them 3 options (350, 360 and 390) with perplexed faces.

Never heard of that size! I was under the impression all CD's were 360mm.

Still confused 3 years later. To make a long story short, I painted my black caliper in red and these are fitting 350 mm rotors. So I purchased recently "real" red calipers from a macan turbo and they told me it's the same caliper as the cayenne turbo and turbo s to fit my new 390 mm rotors. So today I tried the fitment and there is a big gap between the caliper and the knuckle and the rotor is too big to fit inside.

https://cimg8.ibsrv.net/gimg/rennlis...fbb88c455c.png
The gap because the rotor is too big to fit
https://cimg8.ibsrv.net/gimg/rennlis...a9268147b0.png
The look is great but do not fit
https://cimg2.ibsrv.net/gimg/rennlis...e0d5c8abe1.png
The black caliper painted in red (left) and the real red caliper
As I can see the " real red" looks more like a 360 mm setup.

Please help me if you have a setup with 390mm like caliper mesurement and pictures...
Thanks,

The Cayenne Turbo and Macan Turbo do not share the same caliper. You have what is the equivalent of a Cayenne base caliper, which is the came as the Macan turbo caliper.

The Cayenne turbo caliper has extended mounting bolt holes on the rear of the caliper.

You had 3 years to research this. What happened. :icon107:

https://cimg6.ibsrv.net/gimg/rennlis...d1f650572.jpeg

will cayenne turbo calipers fit the base/diesel model?

according to PET - there is only one knuckle part number for all models. So all calipers should have same mounting points. You would need matching disk and pads.

realeom.com

I do have a confusion of my own. I have a base 3.6 cayenne with manual trans. 2013 model year. Nov 2012 build. US car.
18 inch wheels Black calipers.

called three dealers. Everybody quoting 360mm disks. While product documentation shows 350 and sometimes 360 in various marketing brochures.

Do black calipers accommodate both 350 and 360 disks?

if you look at pdf parts catalog - there is an option for "brakes for 18 inch wheels black calipers, North America. - which does cross reference to 360mm.
however there is also an option for black calipers for 350mm.

Now, I'm also confused. :)
2013 Base.
I just got a quote from the dealer
Front part # 95835140301 - 360mm
Rear # 95535240131 - 330 mm (a 955 number ?)

that's the same front rotor part number ! Xxxx301 for the left and xxxx401 for the Right.

what's your build date?
what's your wheel size?
caliper color?

What I think is happening is that Porsche USA has standardized across 350/360 into 360mm size. I think black calipers support both rotors and there was no reason to stock two sizes so they just stated doing 360 for Base, Diesel and GTS. Just a theory. All dealers double confirmed that based on VIN it's the right part.

You guys asking about these sizes, are you DIY'ing the brake job? If yes, do none of you have a tape measure?
350mm = 13.78"
360mm = 14.17"

Prod Month: 2012-07-01
18 inch wheels and black calipers.
I provided my VIN and that's what they sent me

https://cimg2.ibsrv.net/gimg/rennlis...d45a20842b.jpg
Fronts
https://cimg3.ibsrv.net/gimg/rennlis...b5e7e6056f.jpg
Rear

But aren’t the red turbo calipers the same as the black and silver, but just with bigger rotors? If so, how do we get the bigger rotors to fit?

No, calipers are different part numbers, so they accomodate even larger rotors....however, because the knuckle is the same across all models - that means that bolt holes are the same - so if you get larger Turbo calipers, 390 mm disks, and probably hard brake lines - it should fit.

Assuming, of course, that you're also using rims large enough to allow clearance for the calipers. GTS/Turbo red calipers wont fit inside 18" rims.

thanks gents. I actually snagged a set of turbo calipers front and rear along with the dust shields for a really good price. My car came with 19’s, but I’m running 22’s. I’m hoping that everything will fit as long as I get the proper rotors and pads. I wanted a little more stopping power for when I tow with my diesel.

Let us know. I would also replace the hard brake lines which snake around the caliper.

Sounds good. I’m ordering the rest of the parts here shortly. Why the hardliners too, though?

IDK enough about the front "knuckle" to know if it's the same across all model/trim levels of 958 Cayenne but I can say with confidence that the caliper bolts (that hold the caliper to the "knuckle") are not the same across all models/trim levels.

I know this because when I did the front brakes on my 2014 CTTS (390mm front rotors; steel (not PCCB)), I noticed that most parts sites listed two types of caliper bolts, which I've come to refer to as "short" and "long." I sent inquiries (with my VIN) to Suncoast, Pelican, and my local Porsche dealer and got conflicting answers--one said "long", another said "short" and perhaps the most honest reply was from my local dealer.... "we can't tell." LOL In the end, I ordered BOTH because I figured when I started the job, it would be a royal PITA to get it taken apart and realize I didn't have the right caliper bolt to get it back together. The bolts are about $5 each so not a huge expense; turns out I needed the "long" bolts.

There is a way to determine which bolt is currently on the vehicle. I'm going from memory here so can't confidently say I have this right, but the gist is that the different bolts have different head patterns. I believe the "long" bolt (which is on my vehicle) has a Torx socket and uses a T55 (I think) bit. The "short" bolt has a "triple square" socket and uses an M14 (I think) bit. Going from memory here so might have that reversed.

If you're changing rotors and calipers, this might not be much help because what's on your Cayenne now probably won't be what you need when going to the larger caliper but at least you'll be aware that there are two caliper bolt lengths and can research the subject yourself.

Good luck!

That makes TOTAL sense to me - the larger diameter rotors push the outer edge of the caliper further from the knuckle, which necessitates longer mounting bolts to keep the same amount of thread engagement. Good point for those considering the swap!

I found out the hard way that my 2014 base came with 360mm rotors.
I ordered 350mm rotors with 350mm pads but the pads sit higher than the rotors.

Either the caliper or the control arm is different because both 350mm rotors and pads should've worked.

when I spoke with several dealers they said that you have to get rotor size by the Vin and that all online parts stores (including which are run by dealers) use generic databases and are very often wrong. My base 2013 also had 360mm fronts.

My indy wanted to physically measure the rotors on my 14 CD Platinum before he ordered them. FYI they are 360mm. He also said they were heavier than any of the ones they see on Touaregs & Q7s. :D

That's called "recency bias."

According to Partsgeek.com, the 2014 Cayenne and 2014 Audi Q7 use the same part numbers.

Any luck?

Easier said than done. you really have to take off the disk and measure the backside to be accurate enough to the the 10mm difference. I did just that and found out I had 360mm on my 2016 Base Cayenne. Lots of (mis)information out there relating wheel size to the rotor size, it wasn't true in my case at all. The car came with 18"s from the factory but rotors were 360mm. The Porsche parts catalog claims 350mm for back calipers which wasn't true in my case either.

the measurement of disk is 14.2 inches as shown below.

https://cimg3.ibsrv.net/gimg/rennlis...6cb61315d.jpeg

Bump
 

Sorry to bump an old thread, but hopefully adding helpful information here. I too was confused. Or rather, just a little frustrated when searching for brake rotor options for my '11 Turbo. It's like, you're better off having a Base, S, or Diesel or basically any model except the Turbo if you're trying to buy new brakes, at least for the front. And/or, better off having the PCCB option, if you're that fancy. Otherwise, good luck trying to track down a set of decent, not overly expensive brake rotor OE options, let alone anything aftermarket and "cool" i.e. drilled/slotted options. I guess that's what you get for having 390mm front rotors, which are bigger than many other vehicles wheels! Let alone their rotor size.

I posted about it here: 958.1 Turbo Brake Rotor Options