I posses a set of what I believe to be sport calipers that I intend to install on my na6. The seals are clapped out and I seek to rebuild them. However, retailers that sell rebuild kits do not have a kit explicitly made for sport brakes. I hunted for 03-05 and could only find 90-02 "w/ standard brakes" sets.

Are these kits interchangeable between calipers or am I just looking in the wrong places?

 

Pistons are bigger on sport calipers, so the non-sport rebuild kits will not be compatible.

 

If you just need the seal and boot.

https://www.rockauto.com/en/catalog/...epair+kit,1720

 

Or dig through my build thread. I did a sport brake conversion for under $100 not counting pads.

 

I exchanged my old leaking OEM calipers at autozone. I was pleasantly given a mixed bag of parts somewhat resembling a complete caliper. all 4 pistons were different- heights, stand offs, thickness of faces, bores looked like poo, pistons had heavy rust damage. all of it. total ****. I went to get my oem ones back and they were already gone. dont do what I did, thinking that replacements were easier than rebuild.

 

Seems like you got screwed on that one. When I worked at les schwab and did brakes every day i think i only got a handfull of bad calipers in the 5 years i was there. For the most part rebuilds are alright.

 

Also i found my numbers

Centric Calipers 141.45517 and 141.45518 from CARID for $44 each
Centric Sport Rotors 121.45062 off amazon for $22 each

 

I did a search for the seal kit one day and found that the same kit is used in some NCs. I got part number 15149 from O'Reilly's. The Dorman part number, D82020, doesn't hold up to track temps. The Mazda part, B2YD-33-26Z does two Sport calipers and isn't a bad price on the web.