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Discussion Starter #1
Hey guys, it's been a long time since I've posted on the forums. For those of you that came here by search for part numbers, skip down to the second post.

To update the remainder of you, my WRX is 16 years old now so with that comes rust, dry rot, and a whole host of brake problems. TBH, it mostly sits in the driveway, and I drive my 4Runner everywhere. Sometime in 2012, my Subaru front stock calipers seized. I initially went the rebuild route, but after tearing into how much damage there was and the fact I had several hundred in Subaru Bucks remaining, I went ahead with a 4 pot conversion. Fantastic choice and my brakes had never been better.

Fast forward to today, my rear brakes are suffering. I replaced the rear pads and rotors yesterday since I failed my state inspection, but I still have a lot of noise and mushiness, so I suspect the piston/seals are damaged. Not wanting to drop a ton of money on a 16 year old car, I will probably go the rebuild route of the stock sliding calipers but I'll list 2 pot options.

Also noting my front 4 pots are now 8 years old, they probably could use a rebuild as well, so I will be covering that. Laying out all of my options, I forgot how many parts/part numbers there are for something that requires regular maintenance. So hopefully some of you find this information useful. I spent several hours gathering part numbers and diagrams making sure I get everything right the first time and was surprised a lot of it isn't found in one place considering it's been 14 years (more if you count JDM options) since these have been available. What made things for me more challenging is I forgot how much I relied on subarugenuineparts.com and they seemed to have moved away from the parts/accessories go to place that it used to be. Also, a lot of part numbers have been updated and superceeds older part numbers since they were available.

Not wanting that research go to waste, I decided to come back to the forums to document it all. Just to note, it's cold and I hate working in the cold so I'll probably wait til spring to do the actual rebuild. But there are plenty of youtube videos for that. I'll be pricing parts at my local dealership this week so I'll update part numbers if there are errors.
 

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Discussion Starter #2
Subaru 06/07 4 Pot Front Part Numbers

Keep in mind 02-05 WRX factory wheels WILL NOT FIT over these bigger calipers.

Here are the right and left caliper part numbers
Disk Brake Caliper RH 26292FE0418A
Disk Brake Caliper LH 26292FE0518A
46308

(note front rotors and mounting are the same on the 02-05 WRX)

Rebuild options
4 Pot Front Seal Kit 26297FA050 (kit is good for both calipers)
Replacement Pistons 26236FA010 (x8 total, 4 per side)
so, at $25-35 a pop I'd tear it apart and see how many are damaged beyond saving.

Front Caliper External Parts
Anti-Rattle Clip 26232FA020 (x2 total, 1 per side)
Brake Pad Pins 26228FA001 (x4 total, 2 per side)
Brake Pin Clip 26232FA010 (x2 total, 1 per side)

Front Brake Pad Parts
Shim 1 26233AE020 (x2 total, 1 per side)
Shim 2 26233AE050 (x2 total, 1 per side)
Shim 3 26233AE010 (x4 total, 2 per side)
Pad Retaining Clip A 26244FA001 (x2 total, 1 per side)
Pad Retaining Clip B 26244FA011 (x2 total, 1 per side)
(sorry didn't bother to look up the brake pads)

OR you can get the whole kit with the pads, shims, and retaining clips, but it doesn't come with anti-rattle clips or the pins. 26296FE070
46310


46309
 

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Discussion Starter #3 (Edited)
Subaru 06/07 2 Pot Rear Part Numbers

Keep in mind 02-05 WRX wheels WILL NOT FIT over these larger calipers. These also require adapters brackets like those from Kartboy, larger rotors, and removal or modification of the dust shield.


Here are the right and left caliper part numbers
Disk Brake Caliper RH 26692FE040 26692FE0408A
Disk Brake Caliper LH 26692FE050 26692FE0508A

OEM Rear Rotors 26700AE081 (x2 total, 1 per side)

Rebuild Options
Seal kit 26697FA0008A
piston (don't know atm)

Rear Caliper External Parts
Rear Pad Pins 26628FA001 (x4 total, 2 per side)
Retaining Clip 26632FA021 (x4 total, 2 per side)

Rear Brake Pad Parts
Shim 1 26633FA000 (x4 total, 2 per side)
Shim 2 26633FA010 (x4 total, 2 per side)
Pad Clip 26632FA000 (x4 total, 2 per side)

Brake pad kit like above 26696AE060 (i'm a bit less confident about this one; might need confirmation later)
This is also does not include the pins and clips.

46311
 

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Discussion Starter #4
And lastly, what's needed to rebuild the factory rear sliding pot calipers.

Seal kit 26697FC000
Piston 26236AA040

Rear bracket Pad Clip if needed 26632FC001 (x4 total, 2 per side)

Rear Pad Shim 26633FC000 (x4 total, 2 per side)

46312
 
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