Good Morning Chaps,

Looks like I have a seized rear brae calliper on my XKR X150 2010, non Alcon Brakes, these are the 380 front discs and 376 rear discs.

So onto the internet I go for a rebuild kit, all my usual brake shops don't have these listed, only earlier models with smaller brakes.

Has anybody managed to find a calliper rebuild kit for either front or rear for these brakes?
Including pistons

Does anybody know the piston size difference between the non alcon brakes

couldn't find anyone with this problem in the search

 

rockauto.com lists a few options.
But do your due diligence and compare the part numbers to the manufacture’s list so that you are certain you’re getting the right part.

Incidentally,I always choose the biggest name brand with the largest price tag to ensure a quality product.

 

Rock auto is good but I like to be doubly sure I'm ordering the right parts as I can't return stuff back to the US from UK

So I'm suspecting that the rear brake callipers between XK and XKR are the same (at least requiring the same rebuild kit) for both the XK 326mm discs and XKR 376mm discs
obviously fronts are totally different but one step at a time.

The rear piston sizes are both 45mm
Rock auto list the same components for each based on part numbers

So this kit looks like it will work
https://www.ebay.co.uk/itm/273519756396
This looks a good kit and big red are a well known UK supplier of brake components

However it looks like rock auto are the only place that lists XKR front rebuild kits / pistons
actually are there any other models with the same callipers? XJR XFR or F type?

Can anyone confirm?

 

Not really valuable input but I had my XKR calipers rebuilt last year. Parts (pistons and seals) are common and very easy to buy. Did it in Poland, so would be surprised that you have issues organizing parts in the UK.

But you need to take calipers off and take parts out. They (like Big red) will find replacement.

On the other hand - if you are interested in an upgrade - I have the whole set ready for you with Stoptech rotors (380 and 376), EBC yellowstuff pads and refurbished calipers for sale. With about 1000-2000km covered - all in absolutely mint condition. I moved to Alcons couple of weeks ago. And they are looking for a new owner.

 

Thanks for the link tmich, I'm just after the parts already have upgraded discs and I'm capable of doing that work myself DIY. yours look really good
Yeah callipers off, I've done lots of calliper refurbs over the years

I've emailed big red and brakes international so hopefully they come back to me with the goods!
No one has them listed anywhere, but I'm sure someone makes them
could always take a loan out and go to main dealer!

Do you know if the rear callipers are the same as the ones for 326mm brakes?

 

No idea, sorry.

 

I think the XKR uses the same calibers as Ford uses on it's SUV's. I remember this discussion on the forum years ago.

 

Sorted it big red found me some, only £100 for all four callipers

He said the fronts are the same as an Audi, think he said A8, rears appear to be the same as the XK but we'll soon find that out

anyone happen to know the banjo sizes?
going to make some banjo blanks to stop the fluid coming out,
nightmare to bleed these!

 

Banjo Sizes are M10x1.0

I had however prepared, M10 by 1.5 and 1.25 blanks, massive fail